100525 + Interview Questions in GENERAL QA IN GENERAL AWARENESS Page 271 InterviewSolution

13501.	Explain the following `(i)` Chalcocite is roasted and not calcined during recovery of copper. `(ii)` Magnesium oxide is used for lining in steel making furnaceA. MgO acts as an acidic flux to remove impurities of Si, P and SB. MgO acts as a basic flux to remove impurities of Si P and SC. MgO acts as an oxidising agent to removing impurities of oxidesD. MgO does not react with any type of impurities
Answer» Correct Answer - B MgO acts as a basic flux to remove impurities of Si, P and S through slag formation. `underset("Basic flux")(MgO) + underset("Acidic impurities ")(SiO_(2)) to underset("Slag")(MgSiO_(3))` `3MgO + P_(2)O_(5) to Mg_(3) (PO_(4))_(2)` `MgO + SO_(2) to MgSO_(3)`

Discussion

13502.	How mant reaction can show slag formation process from the given reaction ? (i) `SiO_(2) + CaO rarr CaSiO_(3)` (ii) `FeO + SiO_(2) rarr FeSiO_(3)` (iii) `CaO + P_(2)O_(5) rarr Ca_(3)(PO_(4))_(2)` (iv) `Cr_(2)O_(3) + 2Al rarr Al_(2)O_(3) + 2Cr` (v) `MgCO_(3) + SiO_(2) rarr MgSiO_(3) + CO_(2)`.A. (i) `SiO_(2) `- Acidic flux (ii) `MgO-` Basic fluxB. (i) `SiO_(2) `- Basic flux (ii) MgO - Acidic fluxC. (i) `SiO_(2) `- Basic flux (ii) MgO-Basic fluxD. (i) `SiO_(2)`-Acidic flux (ii) MgO -Acidic flux
Answer» Correct Answer - A `(i) underset("Basic impurity")(FeO) + underset("Acidic flux")(SiO_(2)) to underset("Slag")(FeSiO_(3))` `(ii) underset("Acidic impurity")(SiO_(2)) + underset("Basic flux")(MgO) to underset("Slag")(MgSiO_(3))`

Discussion

13503.	How mant reaction can show slag formation process from the given reaction ? (i) `SiO_(2) + CaO rarr CaSiO_(3)` (ii) `FeO + SiO_(2) rarr FeSiO_(3)` (iii) `CaO + P_(2)O_(5) rarr Ca_(3)(PO_(4))_(2)` (iv) `Cr_(2)O_(3) + 2Al rarr Al_(2)O_(3) + 2Cr` (v) `MgCO_(3) + SiO_(2) rarr MgSiO_(3) + CO_(2)`.
Answer» Correct Answer - `(4)` Reactions (i),(ii),(iii) and (iv).

Discussion

13504.	Find the number of basic flux from the given compounds : `SiO_(2), MgO,Cab, FeO, B_(2)O_(3), CaCO_(3)`.
Answer» Correct Answer - `(4)` Basic flux : `MgO, CaO, CaO, FeO, CaCO_(3)`.

Discussion

13505.	For a reaction `CH_(3)OCH_(3) (g) rarr CH_(4) (g)+H_(2) (g)+CO(g)` at 750K, the rate constant is `3.52xx10^(-3)" min"^(-1)`. Starting with a pressure of 360 mm of Hg at this temperature in a closed container, how many minutes would it take for the pressure in the container to become 760 mm Hg ? (Take log 2.25 = 0.352)
Answer» Correct Answer - `03.5`

Discussion

13506.	How many of the following liberate `O_(2)` on heating in a dry test tube ? `CaO, Fe_(2)O_(3), Fe_(3)O_(4), FeO, Cr_(2)O_(3), XeF_(4), Al_(2)O_(3), MgO, Na_(2)O`
Answer» Correct Answer - `04.5`

Discussion

13507.	Read the following poem and answer the questions that follow :When I consider how my light is spentEre half my days, in this dark world and wide,And that one talent, which is death to hide,Lodged with me useless, though my soul more bentTo serve therewith my Maker, and presentMy true account, lest He, returning chide;‘Doth God exact day-labour, light denied ?’I fondly ask : but Patience, to preventThat murmur, soon replies, ‘God doth not needEither man’s work, or His own gifts; who bestBear His mild yoke, they serve Him best; His stateIs kingly: thousands at His bidding speedAnd post o’er land and ocean without rest;They also serve who only stand and wait.[In this poem, Milton shows his deep disappointment that due to his blindness he is not able to make use of his poetic talent received from God. But soon he realises that his frustration is false. God does not demand any return for His gifts. The only service to God is to bear all the misfortunes with patience. The complete surrender to God’s will is the best service to Him.]1. What does the poet say in the first six lines of the poem ?2. What does he realize after sometime?3. What is the real service to God?4. Which word is personified in the poem ?5. Who serve God in the best possible way ?
Answer» 1. The poet complains to God for making him blind in his youth. 2. After sometime the poet realizes that God needs nobody’s service. 3. Eagerly waiting for one’s turn to serve God is the real service to Him. 4. 'Patience’ has been personified. 5. They also serve who have a ready mind and wait for their turn.

13507.

Read the following poem and answer the questions that follow :When I consider how my light is spentEre half my days, in this dark world and wide,And that one talent, which is death to hide,Lodged with me useless, though my soul more bentTo serve therewith my Maker, and presentMy true account, lest He, returning chide;‘Doth God exact day-labour, light denied ?’I fondly ask : but Patience, to preventThat murmur, soon replies, ‘God doth not needEither man’s work, or His own gifts; who bestBear His mild yoke, they serve Him best; His stateIs kingly: thousands at His bidding speedAnd post o’er land and ocean without rest;They also serve who only stand and wait.[In this poem, Milton shows his deep disappointment that due to his blindness he is not able to make use of his poetic talent received from God. But soon he realises that his frustration is false. God does not demand any return for His gifts. The only service to God is to bear all the misfortunes with patience. The complete surrender to God’s will is the best service to Him.]1. What does the poet say in the first six lines of the poem ?2. What does he realize after sometime?3. What is the real service to God?4. Which word is personified in the poem ?5. Who serve God in the best possible way ?

Answer»

1. The poet complains to God for making him blind in his youth.

2. After sometime the poet realizes that God needs nobody’s service.

3. Eagerly waiting for one’s turn to serve God is the real service to Him.

4. 'Patience’ has been personified.

5. They also serve who have a ready mind and wait for their turn.

Discussion

13508.	Read the following poem and answer the questions that follow :The quality of mercy is not strain’d;It droppeth as the gentle rain from heavenUpon the place beneath. It is twice blest :It blesseth him that gives and him that takes;‘Tis mightiest in the mightiest; it becomesThe throned monarch better than his crown :His sceptre shows the force of temporal power,The attribute to awe and majesty;Wherein doth sit the dread and fear of kings;But mercy is above this sceptred sway,It is enthroned in the hearts of kings,It is an attribute to God himself;And earthly power doth then show likest God’sWhen mercy seasons justice.[Mercy is a chief human quality. It cannot be forced upon a person. It springs from a noble heart and blesses both the giver and the recipient. The merciful behaviour of a person shows his divine nature. Justice clad in mercy shines brighter.]1. What does the poet mean by ‘twice blest’ ?2. Write two qualities of mercy.3. What does the word ‘It’ mean in the poem ?4. When does the temporal power become Godly power ?5. List the similes the poet has used in the poem.
Answer» 1. Mercy blesses both the giver and the recipient because both find themselves on a higher level of life. 2. Mercy makes a person spiritually great. A merciful person enjoys heavenly bliss. 3.‘It’ stands for the quality of mercy. 4. The temporal or worldly power becomes Godly power when the worldly person becomes merciful. 5. Two similes: It droppeth as the gentle rain from heaven. And earthly power doth then show likest God’s.

13508.

Read the following poem and answer the questions that follow :The quality of mercy is not strain’d;It droppeth as the gentle rain from heavenUpon the place beneath. It is twice blest :It blesseth him that gives and him that takes;‘Tis mightiest in the mightiest; it becomesThe throned monarch better than his crown :His sceptre shows the force of temporal power,The attribute to awe and majesty;Wherein doth sit the dread and fear of kings;But mercy is above this sceptred sway,It is enthroned in the hearts of kings,It is an attribute to God himself;And earthly power doth then show likest God’sWhen mercy seasons justice.[Mercy is a chief human quality. It cannot be forced upon a person. It springs from a noble heart and blesses both the giver and the recipient. The merciful behaviour of a person shows his divine nature. Justice clad in mercy shines brighter.]1. What does the poet mean by ‘twice blest’ ?2. Write two qualities of mercy.3. What does the word ‘It’ mean in the poem ?4. When does the temporal power become Godly power ?5. List the similes the poet has used in the poem.

Answer»

1. Mercy blesses both the giver and the recipient because both find themselves on a higher level of life.

2. Mercy makes a person spiritually great. A merciful person enjoys heavenly bliss.

3.‘It’ stands for the quality of mercy.

4. The temporal or worldly power becomes Godly power when the worldly person becomes merciful.

5. Two similes:

It droppeth as the gentle rain from heaven.
And earthly power doth then show likest God’s.

Discussion

13509.	Read the following poem and answer the questions that follow :My days among the Dead are past;Around me I behold,Where’er these casual eyes are cast,The mighty minds of old :My never-failing friends are they,With whom I converse day by day.With them I take delight in wealAnd seek relief in woe;And while I understand and feelHow much to them I owe,My cheeks have often been bedew’d With tears of thoughtful gratitude.My thoughts are with the Dead; with themI live in long-past years,Their virtues love, their faults condemn,Partake their hopes and fears,And from their lessons seek and findInstruction with an humble mind.[Today’s students should learn a lesson that they must study hard for success in life. They should love their books.]1. Who are the never failing friends of a scholar?2. From where does the poet get delight and relief in woe ?3. What happens to the poet when he understands the books of the great writers ?4. Who are the mighty minds of old ?5. Write the word from the poem which means ‘hate’.
Answer» 1. Books written by great authors are the never failing friends of a scholar. 2. The poet gets delight and relief in woe from the books written by great old masters. 3. The poet’s cheeks get wet with tears of gratefulness when he reads and understands the books of the great writers. 4. The mighty minds of old are the great writers who are not living now. 5. The word ‘condemn’ means hate.

13509.

Read the following poem and answer the questions that follow :My days among the Dead are past;Around me I behold,Where’er these casual eyes are cast,The mighty minds of old :My never-failing friends are they,With whom I converse day by day.With them I take delight in wealAnd seek relief in woe;And while I understand and feelHow much to them I owe,My cheeks have often been bedew’d With tears of thoughtful gratitude.My thoughts are with the Dead; with themI live in long-past years,Their virtues love, their faults condemn,Partake their hopes and fears,And from their lessons seek and findInstruction with an humble mind.[Today’s students should learn a lesson that they must study hard for success in life. They should love their books.]1. Who are the never failing friends of a scholar?2. From where does the poet get delight and relief in woe ?3. What happens to the poet when he understands the books of the great writers ?4. Who are the mighty minds of old ?5. Write the word from the poem which means ‘hate’.

Answer»

1. Books written by great authors are the never failing friends of a scholar.

2. The poet gets delight and relief in woe from the books written by great old masters.

3. The poet’s cheeks get wet with tears of gratefulness when he reads and understands the books of the great writers.

4. The mighty minds of old are the great writers who are not living now.

5. The word ‘condemn’ means hate.

Discussion

13510.	Read the following poem and answer the questions that follow :How happy is he born or taughtThat serveth not another’s will;Whose armour is his honest thought,And simple truth his utmost skill!Whose passions not his masters are,Whose soul is still prepared for death;Untied unto the world with careOf princely love or vulgar breath;Who hath his life from rumours freed,Whose conscience is his strong retreat;Whose state can neither flatterers feed,Nor ruin make oppressors great;Who envies none whom chance doth raiseNor vice; who never understoodHow deepest wounds are given with praise;Nor rules of state, but rules of good;[This poem gives us the qualities of a happy man. The poet says that a happy man is honest and truthful. He has complete control on his passions. He is not afraid of death. He is not disturbed by any fear or favour. He is free from rumours. He follows the voice of his own conscience. He dislikes false flattery. He is never jealous of others.]1. Find out the qualities of a happy man in the first stanza of the poem.2. Why is a happy man not afraid of death ?3. A happy man does not care for anything. Comment.4. Who gets true happiness according to the third stanza of the poem ?5. Name the figure of speech in the line ‘whose armour is his honest thoughť.
Answer» 1. A happy man is cool and calm in poverty and prosperity. Praise or blame, favour or fear do not effect him. 2. A happy man is not afraid of death because he has a clean conscience. 3. A happy man does not care for anything because he has complete control over his. passions. 4. True happiness comes to one who does not envy others’ prosperity and follows the rules of a good life. 5. Metaphor.

13510.

Read the following poem and answer the questions that follow :How happy is he born or taughtThat serveth not another’s will;Whose armour is his honest thought,And simple truth his utmost skill!Whose passions not his masters are,Whose soul is still prepared for death;Untied unto the world with careOf princely love or vulgar breath;Who hath his life from rumours freed,Whose conscience is his strong retreat;Whose state can neither flatterers feed,Nor ruin make oppressors great;Who envies none whom chance doth raiseNor vice; who never understoodHow deepest wounds are given with praise;Nor rules of state, but rules of good;[This poem gives us the qualities of a happy man. The poet says that a happy man is honest and truthful. He has complete control on his passions. He is not afraid of death. He is not disturbed by any fear or favour. He is free from rumours. He follows the voice of his own conscience. He dislikes false flattery. He is never jealous of others.]1. Find out the qualities of a happy man in the first stanza of the poem.2. Why is a happy man not afraid of death ?3. A happy man does not care for anything. Comment.4. Who gets true happiness according to the third stanza of the poem ?5. Name the figure of speech in the line ‘whose armour is his honest thoughť.

Answer»

1. A happy man is cool and calm in poverty and prosperity. Praise or blame, favour or fear do not effect him.

2. A happy man is not afraid of death because he has a clean conscience.

3. A happy man does not care for anything because he has complete control over his. passions.

4. True happiness comes to one who does not envy others’ prosperity and follows the rules of a good life.

5. Metaphor.

Discussion

13511.	You may find the end of the story quite _____ . A) surprised B) surprised C) surprising D) surprise
Answer» Correct option is C) surprising

Discussion

13512.	A: Mary’s very late. I hope nothing has happened to her. B: ______ A) I don’t either B) Neither do I C) So do I D) I hope to
Answer» Correct option is C) So do I

Discussion

13513.	Little boys like _____ trees. A) climb B) climbing C) swing from D) having a swing
Answer» Correct option is B) climbing

Discussion

13514.	Mary’s father approved of _____ in England for another year in order to improve her English. A) her staying B) her to stay C) she will stay D) she to stay
Answer» Correct option is A) her staying

Discussion

13515.	In class there are a total of 60 boys and girls. Which of the following can’t represent the ratio of the number of boys and girls in the class?1. 2 : 32. 1 : 33. 1 : 64. 3 : 7
Answer» Correct Answer - Option 3 : 1 : 6 Given : Total number of Boys & Girls = 60 calculation = Factors of60 = (1,3,4,5,6,10,12,15,20) sum of the ratio of boys and girls =,(1,3,4,5,6.10,12,15,20) 1 : 6 Sum is 7 that is not divisible by 60 2 : 3 ,1 : 3 , 3 : 7 sum is divisible by 60 Hence1:6 cant be the ratio of Boys and girls

13515.

In class there are a total of 60 boys and girls. Which of the following can’t represent the ratio of the number of boys and girls in the class?1. 2 : 32. 1 : 33. 1 : 64. 3 : 7

Answer» Correct Answer - Option 3 : 1 : 6

Given :

Total number of Boys & Girls = 60

calculation =

Factors of60 = (1,3,4,5,6,10,12,15,20)

sum of the ratio of boys and girls =,(1,3,4,5,6.10,12,15,20)

1 : 6 Sum is 7 that is not divisible by 60

2 : 3 ,1 : 3 , 3 : 7 sum is divisible by 60

Hence1:6 cant be the ratio of Boys and girls

Discussion

13516.	A: What does Mary’s mother do? B: ________ . A) She is a woman B) She teaches English C) She is very well D) She lives happily
Answer» Correct option is B) She teaches English

Discussion

13517.	Which of the following statements is true?1. Every complex number can be expressed in the form of a real number2. Every integer is natural number3. Every real number can be written in the complex form4. Every real number is an integer
Answer» Correct Answer - Option 3 : Every real number can be written in the complex form From option 1 - Every complex number is the combination of real and imaginary number. But in the option say every complex number can be expressed in the form of a real number which is wrong. From option 2 - Every natural number is integer but every integer is not natural number. So from option 2 every integer is natural number is not correct. From option 3 - Every complex number is the combination of real and imaginary number. So, every real number can be written in the complex form, which is correct. From option 4 - Every integer is real number but every real number is not an integer. from this option every real number is an integer is not correct. Hence, "option 3" is the correct answer. Complex numbers are numbers that consist of two parts — a real number and an imaginary number. The standard format for complex numbers is a + bi, with the real number first and the imaginary number last. Because either part could be 0, technically any real number or imaginary number can be considered a complex number. Natural numbers: The counting numbers {1, 2, 3, ...} are commonly called natural numbers; however, other definitions include 0, so that the non-negative integers {0, 1, 2, 3, ...} are also called natural numbers. Natural numbers including 0 are also called whole numbers. Integers are the collection of whole numbers and negative numbers. Similar to whole numbers, integers also does not include the fractional part. Thus, we can say, integers are numbers that can be positive, negative or zero, but cannot be a fraction.

13517.

Which of the following statements is true?1. Every complex number can be expressed in the form of a real number2. Every integer is natural number3. Every real number can be written in the complex form4. Every real number is an integer

Answer» Correct Answer - Option 3 : Every real number can be written in the complex form

From option 1 - Every complex number is the combination of real and imaginary number. But in the option say every complex number can be expressed in the form of a real number which is wrong.

From option 2 - Every natural number is integer but every integer is not natural number. So from option 2 every integer is natural number is not correct.

From option 3 - Every complex number is the combination of real and imaginary number. So, every real number can be written in the complex form, which is correct.

From option 4 - Every integer is real number but every real number is not an integer. from this option every real number is an integer is not correct.

Hence, "option 3" is the correct answer.

Complex numbers are numbers that consist of two parts — a real number and an imaginary number.

The standard format for complex numbers is a + bi, with the real number first and the imaginary number last. Because either part could be 0, technically any real number or imaginary number can be considered a complex number.

Natural numbers: The counting numbers {1, 2, 3, ...} are commonly called natural numbers; however, other definitions include 0, so that the non-negative integers {0, 1, 2, 3, ...} are also

called natural numbers. Natural numbers including 0 are also called whole numbers.

Integers are the collection of whole numbers and negative numbers. Similar to whole numbers, integers also does not include the fractional part.

Thus, we can say, integers are numbers that can be positive, negative or zero, but cannot be a fraction.

Discussion

13518.	Cats-Meow, Cows-______?
Answer» Correct answer is Moo

Discussion

13519.	The President of R.W.A. Chelavoor Heights, Kozhikode, has to put up a notice to inform residents about a power-cut for their residential area.1. Select the appropriate title for the notice. A. Choosing Own Power CutsB. Scheduled Power CutC. The Need to Save PowerD. Power and Resident Safety2. Select the option that lists the most accurate opening for this notice. A. Greetings and attention please, to one and all in Chelavoor Heights. B. This notice is written to share some news with you all about… C. This is to inform all the residents of Chelavoor Heights about… D. I wish to share with all officials of R.W.A. Chelavoor Heights that…3. Select the option with the information points to be included in the body of the notice. (1) Opinion about regular power cuts (2) Resolution for power cuts (3) Reason for the power cut (4) Timings of the power cut (5) Complaint against regular power cuts (6) Date of the power cutA. (1) and (4)B. (2), (3) and (5)C. (2) and (6)D. (3), (4) and (6)4. Would this notice reflect the name of the R.W.A?A. Yes, because it is the issuing body.B. No, because it is understood through the signature.C. Yes, because it makes it informal.D. No, because the title makes it clear5. Select the appropriate conclusion for this notice. A. Stay informed.B. Collaboration solicited.C. Stay prepared.D. Inconvenience regretted.
Answer» 1. Correct answer is: B. Scheduled Power Cut 2. Correct answer is: C. This is to inform all the residents of Chelavoor Heights about… 3. Correct answer is: D. (3), (4) and (6) 4. Correct answer is: A. Yes, because it is the issuing body. 5. Correct answer is: D. Inconvenience regretted.

13519.

The President of R.W.A. Chelavoor Heights, Kozhikode, has to put up a notice to inform residents about a power-cut for their residential area.1. Select the appropriate title for the notice. A. Choosing Own Power CutsB. Scheduled Power CutC. The Need to Save PowerD. Power and Resident Safety2. Select the option that lists the most accurate opening for this notice. A. Greetings and attention please, to one and all in Chelavoor Heights. B. This notice is written to share some news with you all about… C. This is to inform all the residents of Chelavoor Heights about… D. I wish to share with all officials of R.W.A. Chelavoor Heights that…3. Select the option with the information points to be included in the body of the notice. (1) Opinion about regular power cuts (2) Resolution for power cuts (3) Reason for the power cut (4) Timings of the power cut (5) Complaint against regular power cuts (6) Date of the power cutA. (1) and (4)B. (2), (3) and (5)C. (2) and (6)D. (3), (4) and (6)4. Would this notice reflect the name of the R.W.A?A. Yes, because it is the issuing body.B. No, because it is understood through the signature.C. Yes, because it makes it informal.D. No, because the title makes it clear5. Select the appropriate conclusion for this notice. A. Stay informed.B. Collaboration solicited.C. Stay prepared.D. Inconvenience regretted.

Answer»

1. Correct answer is: B. Scheduled Power Cut

2. Correct answer is: C. This is to inform all the residents of Chelavoor Heights about…

3. Correct answer is: D. (3), (4) and (6)

4. Correct answer is: A. Yes, because it is the issuing body.

5. Correct answer is: D. Inconvenience regretted.

Discussion

13520.	Digging the garden is a very ________ task. A) industrious B) manual C) laborious D) exerting E) conscientious
Answer» Correct option is C) laborious

Discussion

13521.	I visited many historic houses and castles ____ my summer holiday. A) within B) inside C) during D) including E) wherein
Answer» Correct option is C) during

Discussion

13522.	Teachers like ________ students. A) conscious B) conscientious C) consenting D) conscience
Answer» Correct option is B) conscientious

Discussion

13523.	The members of the team were very ________ and changed their plans at short notice. A) flexible B) supple C) loose D) plastic E) lenient
Answer» Correct option is A) flexible

Discussion

13524.	He fell guilty about breaking off the engagement and often had a ________ of conscience. A) spasm B) twinge C) sting D) pain E) pinch
Answer» Correct option is E) pinch

Discussion

13525.	Radhika was fond of junk food and ate it too often. However, she always felt guilty as she knew junk food was harmful for her health and wanted to give it up. Explain the process that will lead to change in her attitude.
Answer» The concept of cognitive dissonance was proposed by Leon Festinger. The cognitive components of an attitude must be ‘consonant’ (opposite of ‘dissonant’), i.e. they should be logically in line with each other. If an individual finds that two cognitions in an attitude are dissonant, then one of them will be changed in the direction of consonance. Explanation of cognitive consistency to reduce mental discomfort. Explanation by referring to Radhika

Discussion

13526.	but she said I ____ because it would be too noisy.A) can B) could C) managed to D) couldn’t
Answer» Correct option is D) couldn’t

Discussion

13527.

Radhika visits her friend’s house and notices that her refrigerator is too noisy. She asks her friend but her friend has no clue about it. She inspects the fridge and finds out the reason and explains it to her. What do you think may be the reason of the noise in the refrigerator? Write the causes for that and also write down remedies for the causes.

Answer»

Possible Cause	Test and Remedy
1. Improper Level of cabinet.	Check the level of the refrigerator cabinet and if necessary adjust the level screws at the base of cabinet.
2. Things placed improperly in the refrigerator	Do not over crowd the shelves with bottles and dishes. Otherwise these will make noise.
3. Rattling of tubes	Check all the tubes, If they are touching with each other, adjust or clamp them as necessary.
4. Loose sealed unit or condenser mounting.	Check the mounting of the sealed unit and condenser, if it is loose, tight it. This type of noise generally heard at the starting and stopping of unit.

Discussion

13528.	He’ s _____ to do any serious work. A) too lazy B) lazy enough C) very lazy D) so lazy
Answer» Correct option is A) too lazy

Discussion

13529.	A: What is the most serious disadvantage of living in a city? B: The most serious one is ________ the city is too noisy. A) hich is B) about which C) because of the fact that D) that
Answer» Correct option is D) that

Discussion

13530.	This matter is too important and serious for me. A) happy B) heavy C) hip
Answer» Correct option is B) heavy

Discussion

13531.	Who is the boss there these days? A) hip B) honcho C) hole
Answer» Correct option is B) honcho

Discussion

13532.	That play was a great success. A) hot B) hoot C) hit
Answer» Correct option is C) hit

Discussion

13533.	Please wipe your feet on the door ________ before you come in. A) mat B) rug C) carpetD) tile E) blanket
Answer» Correct option is A) mat

Discussion

13534.	______ is a hanging cloth that can be pulled across a window. A) table cloth B) curtain C) rug D) carpet
Answer» Correct option is B) curtain

Discussion

13535.	find the sum of cube of 5, 6 and 71. 182. 6743. 6844. 676
Answer» Correct Answer - Option 3 : 684 Calculation: 5³ = 125 6³= 216 7³ = 343 ∴ required answer is 125 + 216 + 343 = 684

13535.

find the sum of cube of 5, 6 and 71. 182. 6743. 6844. 676

Answer» Correct Answer - Option 3 : 684

Calculation:

5³ = 125

6³= 216

7³ = 343

∴ required answer is

125 + 216 + 343 = 684

Discussion

13536.	find the value of [73 - ∛2197] 1. 3302. 3433. 2604. 340
Answer» Correct Answer - Option 1 : 330 Calculation: [73 - ∛2197] ⇒ 343 - 13 ⇒ 330

13536.

find the value of [73 - ∛2197] 1. 3302. 3433. 2604. 340

Answer» Correct Answer - Option 1 : 330

Calculation:

[73 - ∛2197]

⇒ 343 - 13

⇒ 330

Discussion

13537.	find the sum of ∛ 512 + ∛ 13311. 112. 183. 194. 20
Answer» Correct Answer - Option 3 : 19 calculation: ∛ 512 + ∛ 1331 ⇒ 8 + 11 ⇒ 19

13537.

find the sum of ∛ 512 + ∛ 13311. 112. 183. 194. 20

Answer» Correct Answer - Option 3 : 19

calculation:

∛ 512 + ∛ 1331

⇒ 8 + 11

⇒ 19

Discussion

13538.	Find the value of √ 21161. 462. 563. 364. 54
Answer» Correct Answer - Option 1 : 46 √ 2116 If we take the last digit of 2116 i.e., 6 From the options we can see that the digit in unit place must be 6 as the unit digit of 6² is 6. Now if we take the first digit of 2116 i.e., 21 We can see that 21 lies between 4² and 5² We have to consider the least number between 4 and 5 So, in tens place the digit must be 4 ∴ Value of √ 2116 is 46.

13538.

Find the value of √ 21161. 462. 563. 364. 54

Answer» Correct Answer - Option 1 : 46

√ 2116

If we take the last digit of 2116 i.e., 6

From the options we can see that the digit in unit place must be 6 as the unit digit of 6² is 6.

Now if we take the first digit of 2116 i.e., 21

We can see that 21 lies between 4² and 5²

We have to consider the least number between 4 and 5

So, in tens place the digit must be 4

∴ Value of √ 2116 is 46.

Discussion

13539.	Find the value of √(73 + √(57 + √(43 + √(31 + √(23 + √ 4)))))1. 82. 93. 74. 11
Answer» Correct Answer - Option 2 : 9 √(73 + √(57 + √(43 + √(31 + √(23 + √4))))) = √(73 + √(57 + √(43 + √(31 + √(23 + 2))))) = √(73 + √(57 + √(43 + √(31 + 5)))) = √(73 + √(57 + √(43 + 6))) = √(73 + √(57 + 7)) = √(73 + 8) = √81 = 9

13539.

Find the value of √(73 + √(57 + √(43 + √(31 + √(23 + √ 4)))))1. 82. 93. 74. 11

Answer» Correct Answer - Option 2 : 9

√(73 + √(57 + √(43 + √(31 + √(23 + √4)))))

= √(73 + √(57 + √(43 + √(31 + √(23 + 2)))))

= √(73 + √(57 + √(43 + √(31 + 5))))

= √(73 + √(57 + √(43 + 6)))

= √(73 + √(57 + 7))

= √(73 + 8)

= √81

= 9

Discussion

13540.	When a long glass capillary tube of radius 0.015 cm is dipped in a liquid, the liquid rises to a height of 15 cm within it. If the contact angle between the liquid and glass to close to 0°, the surface tension of the liquid, in milliNewton m–1, is [ρ(liquid) = 900 kgm–3, g = 10 ms–2] (Give answer in closest integer) _____.
Answer» 101 h = 2Tcos\(\theta\) / ρgr ⇒ T = (ρgr x h) / 2cos\(\theta\) = (900 x 10 x 15 x 15) / (100 x 1000 x 100 x 2) ⇒ T = 0.10125 Nm^–1 ⇒ T = 101.25 \(\simeq\) 101 milliNewton m^–1

13540.

When a long glass capillary tube of radius 0.015 cm is dipped in a liquid, the liquid rises to a height of 15 cm within it. If the contact angle between the liquid and glass to close to 0°, the surface tension of the liquid, in milliNewton m–1, is [ρ(liquid) = 900 kgm–3, g = 10 ms–2] (Give answer in closest integer) _____.

Answer»

101

h = 2Tcos\(\theta\) / ρgr

⇒ T = (ρgr x h) / 2cos\(\theta\)

= (900 x 10 x 15 x 15) / (100 x 1000 x 100 x 2)

⇒ T = 0.10125 Nm^–1

⇒ T = 101.25 \(\simeq\) 101 milliNewton m^–1

Discussion

13541.	What is the H.C.F of 1.4; 2.50 and 0.015?1. 0.4502. 0.0053. 0.9504. 0.750
Answer» Correct Answer - Option 2 : 0.005 Concept Convert each decimal number into fraction form. H.C.F = H.C.F of numerator number/L.C.M of denominator Explanation 1.4; 2.50 and 0.015 (14/10); (250/100) and (15/1000) ⇒ (7/5); (5/2) and (3/200) H.C.F = H.C.F of (7, 5 and 3)/L.C.M of (5, 2 and 200) ⇒ 1/200 ⇒ 0.005

13541.

What is the H.C.F of 1.4; 2.50 and 0.015?1. 0.4502. 0.0053. 0.9504. 0.750

Answer» Correct Answer - Option 2 : 0.005

Concept

Convert each decimal number into fraction form.

H.C.F = H.C.F of numerator number/L.C.M of denominator

Explanation

1.4; 2.50 and 0.015

(14/10); (250/100) and (15/1000)

⇒ (7/5); (5/2) and (3/200)

H.C.F = H.C.F of (7, 5 and 3)/L.C.M of (5, 2 and 200)

⇒ 1/200

⇒ 0.005

Discussion

13542.	What is the least number of square tiles required to pave the floor of a room 5 m 60 cm long and 8 m 80 cm broad?1. 882. 843. 994. 77
Answer» Correct Answer - Option 4 : 77 Given: Length of Room = 5 m 60 cm Breadth of Room = 8 m 80 cm Concept: The number of square tiles = Area of floor/Area of 1 Square tile. To find the size of the square tile we need to find the H.C.F of length and breadth of a room. Calculation: Here, 5 m 60 cm = 5 × 100 + 60 = 560 cm 8 m 80 cm = 8 × 100 + 80 = 880 cm Now, H.C.F of 560 cm and 880 cm is 80. ∴ Number of square tiles = (560 × 880)/(80 × 80) ⇒ 7 × 11 ⇒ 77 tiles ∴ The required number of tiles is 77.

13542.

What is the least number of square tiles required to pave the floor of a room 5 m 60 cm long and 8 m 80 cm broad?1. 882. 843. 994. 77

Answer» Correct Answer - Option 4 : 77

Given:

Length of Room = 5 m 60 cm

Breadth of Room = 8 m 80 cm

Concept:

The number of square tiles = Area of floor/Area of 1 Square tile.

To find the size of the square tile we need to find the H.C.F of length and breadth of a room.

Calculation:

Here,

5 m 60 cm = 5 × 100 + 60 = 560 cm

8 m 80 cm = 8 × 100 + 80 = 880 cm

Now, H.C.F of 560 cm and 880 cm is 80.

∴ Number of square tiles = (560 × 880)/(80 × 80)

⇒ 7 × 11

⇒ 77 tiles

∴ The required number of tiles is 77.

Discussion

13543.	Which of the given is not a pesticide.(1) D.D.T (2) Organophosphate(3) Sodium arsenate(4) Dialdrin
Answer» Correct option is (3) Sodium arsenate

Discussion

13544.	eicosanoid drugs
Answer» Prostaglandins are one example of biologically important class of fatty acids called eicosanoids.

Discussion

13545.	How is the sex of the child determined in human beings?
Answer» Sex of child in humans is determined by the type of male haploid gamete that fuses with the female egg. During spermatogenesis, male produces two types of gametes, half of the sperms have an X- chromosome and the other half have a Ychromosome. The female egg always has an X- chromosome. So, if the male gamete with X- chromosome fuses with the female egg, the child will be female and if the male gamete with Y- chromosome fuses with the female egg, the child will be male.

13545.

How is the sex of the child determined in human beings?

Answer»

Sex of child in humans is determined by the type of male haploid gamete that fuses with the female egg. During spermatogenesis, male produces two types of gametes, half of the sperms have an X- chromosome and the other half have a Ychromosome. The female egg always has an X- chromosome.

So, if the male gamete with X- chromosome fuses with the female egg, the child will be female and if the male gamete with Y- chromosome fuses with the female egg, the child will be male.

Discussion

13546.	how do mendel's experiments show that traits are inherited independently
Answer» In a dihybrid cross, Mendel selected two pairs of contrasting characters and they were crossed. The resultant cross showed the segregation of the traits of both the parents which indicated that the traits were inherited independently.

Discussion

13547.	what kind of problem will we face if the number of vehicles keep on encreaing
Answer» lot of pollution will be there in the atmosphere

Discussion

13548.	what is the significance of Henry's law constant KH
Answer» Henry's law is defined as, at a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid. Mathematically, at constant temperature: p = k_H c where p is the partial pressure of the solute in the gas above the solution c is the concentration of the solute and k_H is Henry's law constant, depends on the solute, solvent and the temperature. k_H : It has crucial importance in environmental chemistry, atmospheric chemistry, waste water treatment. They are needed since solubility affects volatilizations of toxic compounds into the air

13548.

what is the significance of Henry's law constant KH

Answer»

Henry's law is defined as, at a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.

Mathematically, at constant temperature:

p = k_H c

where p is the partial pressure of the solute in the gas above the solution

c is the concentration of the solute and

k_H is Henry's law constant, depends on the solute, solvent and the temperature.

k_H : It has crucial importance in environmental chemistry, atmospheric chemistry, waste water treatment.

They are needed since solubility affects volatilizations of toxic compounds into the air

Discussion

13549.	A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits − blood group A or O − is dominant? Why or why not?
Answer» No. This information is not sufficient to determine which of the traits − blood group A or O − is dominant. This is because we do not know about the blood group of all the progeny. Blood group A can be genotypically AA or AO. Hence, the information is incomplete to draw any such conclusion.

Discussion

13550.

What are the different modes of asexual reproduction ? Give them with examples.

Answer»

Asexual reproduction takes place by six different methods. They are :

(1) Fission

(2) Budding

(3) Spore formation

(4) Regeneration

(5) Fragmentation and

(6) Vegetative propagation

(1) Fission : Single celled organisms split into two equal offsprings or more offsprings.

Ex : Paramoecium, bacteria.

(2) Budding : A growth on the body as a bud grows to form identical copy of parent.

Ex : Yeast.

(3) Spore formation : Spores are produced in sporangium.

Ex : Rhizopus, mucor, bacteria, ferms and mosses.

(4) Regeneration : Ability of organisms to give rise to new individual organisms.

Ex : Hydra, flatworm, tapeworm.

(5) Fragmentation : New individual growth from a separate piece of parent organism.

Ex : Flatworms, moulds, lichens, spirogyra.

(6) Vegetative propagation :

(a) Natural propagation :

(i) Leaves :

Ex : Bryophyllum

(ii) Stems :

Ex : Stolon – Vallisneria, Strawberry

Bulbs – Onion

Corms – Colacasia

Tuber – Potato

(b) Artificial propagation :

(i) Layering : Eg : Nerium, guava, orange, rose.

(ii) Cutting : Eg : Rose, Hibiscus, Sugarcane.

(iii) Grafting : Eg : Sapota, Guava, Mango.

Discussion

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find the value of [73 - ∛2197] 1. 3302. 3433. 2604. 340

find the sum of ∛ 512 + ∛ 13311. 112. 183. 194. 20

Find the value of √ 21161. 462. 563. 364. 54

Find the value of √(73 + √(57 + √(43 + √(31 + √(23 + √ 4)))))1. 82. 93. 74. 11

What is the H.C.F of 1.4; 2.50 and 0.015?1. 0.4502. 0.0053. 0.9504. 0.750

What is the least number of square tiles required to pave the floor of a room 5 m 60 cm long and 8 m 80 cm broad?1. 882. 843. 994. 77

Which of the given is not a pesticide.(1) D.D.T (2) Organophosphate(3) Sodium arsenate(4) Dialdrin

eicosanoid drugs

How is the sex of the child determined in human beings?

how do mendel's experiments show that traits are inherited independently

what kind of problem will we face if the number of vehicles keep on encreaing

what is the significance of Henry's law constant KH

A man with blood group A marries a woman with blood group O and their daughter has blood group O. Is this information enough to tell you which of the traits − blood group A or O − is dominant? Why or why not?

What are the different modes of asexual reproduction ? Give them with examples.