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This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 13101. |
Contour field bunding is a community based intervention. Give an example for a farmer based intervention. |
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Answer» Broad Bed furrow. |
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| 13102. |
What is monozite? |
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Answer» Monazite is a rare phosphate mineral with a chemical composition of (Ce,La,Nd,Th)(PO4,SiO4). It usually occurs in small isolated grains, as an accessory mineral in igneous and metamorphic rocks such as granite, pegmatite, schist, and gneiss. |
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| 13103. |
Arrangement of cells from outer to inner in dicot stem |
| Answer» Multicellulat cell hair -> Cuticle -> Epidermis -> Hypodermis -> Casperian strip -> Endodermis -> Pericycle -> Medullary rays -> Phloem -> Cambium -> Xylem -> Pith | |
| 13104. |
Compound A(`C_7H_8O`)is insoluble in water, dilute HCl & aqueous `NaHCO_3`, it dissolves in dilute NaOH.When A is treatedwith `Br_2` water it is converted into a compound `C_7H_5OBr_3` rapidly. The structure ofA isA. B. C. D. |
| Answer» Correct Answer - C | |
| 13105. |
Ideal gas on the volume v of the container |
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Answer» Solve any question related to it by the use of Ideal Gas Equation Where , |
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| 13106. |
39) which sugar is not present in vegetable?(A)glucose(B) sucrose(C)maltose(D) lactose |
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Answer» Answer: (D) lactose |
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| 13107. |
Which of the following statements is not correct ?A. A compound whose molecule has D configuration will always be dextrorotatoryB. A compound whose molecule has D configuration may be dextrorotatory or levorotatoryC. A compound whose molecule has R configuration may be dextrorotatory or levorotatoryD. A compound whose molecule has L configuration may be dextrorotatory or levorotatory |
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Answer» Correct Answer - A The configuration in a compound is independent of its physical properties (optical activity) |
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| 13108. |
Metals which donot form amalgam ore :A. FeB. NiC. ZnD. Au. |
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Answer» Correct Answer - A::B Fe and Ni donot form amalgams. |
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| 13109. |
Which of the following ores are oxide ores ?A. CassiteriteB. BauxiteC. CryoliteD. Haematite. |
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Answer» Correct Answer - A::B::C Exception for Cryolite `(Na_(3)AlF_(6))` all others are oxide ores. |
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| 13110. |
Assertion : Silver and gold are extracted from their ores by the process of leaching with dilute NaCN. Reason : Impurities associated with these ores dissolve in NaCN.A. Both assertion and reason are correct statements, and reason is the correct explanation of the assertion.B. Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion.C. Assertion is correct, but reason is wrong statement.D. Assertion is wrong, but reason is correct statement. |
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Answer» Correct Answer - C Correct reason : These metals dissolve in NaCN to form soluble complex leaving behind the impurities. |
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| 13111. |
Differentiate between the pattern of inheritance in humans of the blood diseases, haemophilia and thalassemia. |
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| 13112. |
Which technique is used to confirm the detection of Sickle cell anaemia? Who developed this technique? |
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Answer» Peptide mapping/ Protein fingerprinting, V.M Ingram. |
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| 13113. |
Rohit Uncle is a diabetic patient. He must follow the diet in strict manner to keep his glucose level in normal value. Doctor has also suggested him to check for some parameters of blood every year and keep the record. The purpose of this record is to provide personalized care. Identify the record. a) Medical record b) Staff record c) Medicine record d) Diet record |
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Answer» Correct option: a) Medical record |
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| 13114. |
Rohan passed me........... His bycycle |
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Answer» answer ; by Rohan passed me by his bicycle |
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| 13115. |
A man sells two bicycles at Rs. 5,000 each. If he sold one at a gain of 25% and on the whole there is neither profit nor loss, then another bicycle is sold at a loss of:1. 16.25%2. 20%3. 25%4. 16.67% |
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Answer» Correct Answer - Option 4 : 16.67% Given: Selling price of both bicycles = 5000 Percent profit earned on 1st bicycle = 25% Overall Profit/loss = No profit no loss or Total C.P = total S.P Formula used: Loss = Cost price – Selling price % loss = (loss/cost price) × 100 Cost price = 100/ (100 + a%) × selling price Where a% → percent profit Concept used: Profit/loss is always calculated on C.P Calculation: Total S.P of bicycles = 5000 + 5000 = 10000 % Profit earned on 1st bicycle = 25% C.P of 1st bicycle = 100/(100 + 25) × 5000 ⇒ (100/125) × 5000 ⇒ 4000 C.P of 2nd bicycles = 10000 – 4000 = 6000 Loss = Cost price – Selling price ⇒ 6000 – 5000 ⇒ 1000 % loss = (loss/cost price) × 100 ⇒ (1000/6000) × 100 ⇒ 100/6 ⇒ 16.67 ∴ The percent loss on 2nd bicycle is 16.67%. |
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| 13116. |
A boat going downstreame took 30 min to go from point A to point B, the return trip took the boat now 60 min. what time will the boat require to cover the the distance from A and B when the motor is turned off speed of baot relative to the water is constantA. 120 minB. 60 minC. 90 minD. 20 min |
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Answer» Correct Answer - A `x/30=v_(br)+v_(r) rArr x/60=v_(br)-v_(r)` `x/60=2v_(r) rArr x/(v_(r)) =120` min |
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| 13117. |
Li2O is often considered to be covalent in nature because of the unusually high electro negativity of lithium. Which of the following would be a plausible Lewis dot structure for the compound. |
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Answer» Correct option: (b) |
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| 13118. |
When you want to go faster, you press this. A) brake pedal B) clutch C) gearbox D) accelerator E) carburetor |
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Answer» Correct option is D) accelerator |
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| 13119. |
What is the principle behind the carburetor of an automobile ? |
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Answer» The carburetor of automobile has a venturi channel (nozzle) through which air flows with a large speed. The pressure is then lowered at the narrow neck and the petrol is sucked up in the chamber to provide the correct mixture of air to fuel necessary for combustion. |
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| 13120. |
A uniform rope of length 12m and mass 12kg hangs vertically from a rigid support. A block of mass 2kg is attached to free end of the rope. A traverse pulse of wave length 0.05 m is produced at the lower end of the rope. If `lambda` is the wave length when pulse reached at mid point of the rope, then write `10lambda` in the OMR sheet. |
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Answer» `v=fllambda` `(lambda_(1))/(lambda_(2))=(v_(1))/(v_(2_sqrt(T_(1))/sqrt(T_(2))` `(0.05)/(lambda_(2))=sqrt((2xxg)/((2+6)g))=sqrt((1)/(4)=(1)/(2)` `lambda_(2)=0.1` |
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| 13121. |
One gram of radium is reduced by `2` miligram in `5` yers by `alpha`-decay. Calculate the half-life of radium.A. 1700 yrB. 1000 yrC. 1115 yrD. 979 yr |
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Answer» Correct Answer - 1 `N_(0) = gm` `N=1 g-2 mg=0.998 g` `t=5 yr` `use,N = N_(0)e^(-lambdat)` `(N_(0))/(N)=e^(5 lambda)` `(1)/(0.9989) = e^(5lambda)` "taking log both sides" `5lamda =ln(1.0020)` and T=(0.693)/(lambda)=1672 yr` |
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| 13122. |
A cyclic process `ABCD` is shown in the `V-T` diagram. Which of the following curves represent the same process ? A. B. C. D. |
| Answer» Apply gas equation and analyse. | |
| 13123. |
Calculate the minimum and maximum number of electrons which may have magnetic quantum number `m=+1` and spin quantum number `s=-(1)/(2)` in chromium (Cr)A. 0,1B. 1,2C. 4,6D. 2,3 |
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Answer» Correct Answer - D `[Cr]=1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)4s^(1)3d^(5)` For `pl=1` `m=+1,0,-1` For 2p of 3p there are 2e with `s=-(1)/(2)` for dl=2 m=+1 may have e with `+(1)/(2)` or `-(1)/(2)` So manimum 2 and maximum 3. |
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| 13124. |
Energy of an electron in the ground state of the hydrogen atom is `-2.18xx10^(-18)J`. Callate the ionisation enthalpy of atomic hydrogen in terms of `kJ mol^(-1)`. Hint: Apply the idea of mole concept to derive the answer. |
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Answer» The energy required to remove an electron in the ground state of hydrogen atom =-(its energy in the ground state)=-`(-2.18xx10^(-18))` `2.18xx10^(-18)` `:.` IE per mol of hydrogen atoms `=(2.18xx10^(-18)xx6.02xx10^(23))/(1000)kJ` `=13.12.36 kJ "mol"^(-1)` |
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| 13125. |
What is the Chemical formula for"food"? |
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Answer» Examples of chemical formulas in food. Here are some more common food molecules with their chemical formula:
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| 13126. |
Type of single phase motor having highest power factor at full load is (a) Shaded pole type (b) Capacitor run (c) Capacitor start (d) Single phase |
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Answer» Correct option: (b) Capacitor run |
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| 13127. |
Energy in wave is transfer and medium is |
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Answer» An oscillating wave of matter transfers energy through a medium and hence is known as a mechanical wave. The waves can travel over long distances but the medium of transfer is stationary. This makes the oscillating material is also stationary. Energy is transported by the mechanical and electromagnetic waves. |
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| 13128. |
A student uses a simple pendulum of exactly `1m` length to determine `g`, the acceleration due ti gravity. He uses a stop watch with the least count of `1sec` for this and record `40 seconds` for `20` oscillations for this observation, which of the following statement `(s) is (are)` true?A. Error `DeltaT` in measuring T, the time period, is 0.05 secondsB. Error `DeltaT` in measuring T, the time period , is 1 secondC. Percentage error in the determination of g is 5%D. Percentage error in the determination of g is 2.5 % |
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Answer» Correct Answer - A::C |
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| 13129. |
Which one of the following statement is correct?A. Surface energy is potential energy per unit lengthB. Surface tension is work done per unit areaC. Surface tension is wmk done per unit lengthD. Surface energy is work done per unit force |
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Answer» Correct Answer - B Surface tension is the force applied per unit length or work done (or energy ) per unit area of a liquids surface. While surface energy is the amount of work done per unit area by the force. |
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| 13130. |
In a parallel plate air capacitor the distance between plates is reduced to one fourth and the space between them is filled with a dielectric medium of constant 2. If the initial capacity of the capacitor is `4muF`. then its new capacity is .A. `32 muF`B. `18 muF`C. `8 muF`D. `44 muF` |
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Answer» Correct Answer - A The capacitance of parallel plate air capacitor is given by `C_(0) = (epsi_(0)A)/(d)" "……..(i)` Where `,epsi_(0)` = permittivity of the medium. A = area of plates and d= distance between the plates When the distance between plates in reduced and a dielectric slab is introduced , then capacitance becomes . `C= (k epsi_(0)A)/(d_(1)) " "........(ii)` where , k = dielectric constant of medium . Here`k= 2, d_(1) = (d)/(4) and c_(0) = 4 mu F = 4 xx 10^(-6)F` From Eq.(ii) we get `C = 4 ((k epsi_(0) A)/(d_(1))) = 4k((epsi_(0)A)/(d))` ` = 4kC_(0)" "....(iii)` [from Eq.(i)] Substituting given values in Eq. (iii) we , get `C = 4xx 2 xx 4 = 32 muF` |
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| 13131. |
What is the minimum energy required to launch a satellite of mass m from the surface of a planet of mass M and radius R in a circular orbit at an altitude of 2R?A. `(GMm)/(2R)`B. `(2GMm)/(2)`C. `(GMm)/(3R)`D. `(5 GMm)/(2)` |
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Answer» Correct Answer - B The minimum energy required to launch a satellite form surface of earth is equal to the amount of work done against gravity to move it form the surface of earth to a height h and is given by `U = W = GMm ((1)/(r_(1))-(1)/(r_(2)))` ` = GMm ((1)/(R) - (1)/(R +h))` Here h = 2R `rArr " " U = GMm ((1)/(R) -(1)/(3R)) = (2GMm)/(3R)` |
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| 13132. |
Student `I ,II , and III` perform an experiment for measuring the acceleration due to gravity `(g) ` usinf a simple pendulum. They use lengths of the pendulum and // or record time for different number of oscillations . The observations are shown in the following table . Least count for length ` = 0.1 cm` `{:(underset(III)underset(II)underset(I)underset()underset()("Student"),underset(20.0)underset(64.0)underset(64.0)underset((cm))underset("Pendulam")("Length of "),underset(4)underset(4)underset(8)underset((n))underset("n Oscillation")("Number of"),underset(9.0)underset(16.0)underset(16.0)underset((s))underset("Period")("Time")):}` Least count for time `= 0.1 s`. If `E_(I), E_(II)` , and `E_(III)` are the percentage errors in `g` , i.,e., `((Delta g)/( g) xx 100)` for students I,II , and III, respectively , thenA. `E_(I)=0`B. `E_(1)` is minimumC. `E_(I)=E_(II)`D. `E_(II)` is maximum |
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Answer» Correct Answer - B `L.C=(0.5)/(100)mm=0.005mm` Zero error `=2xx0.005mm=0.01mm` So zero correction is `=-0.01mm` `M.S.R=4mm` `C.S.R=83xxL.C=0.415mm` So diameter `=4mm0.415mm-0.01nm` `=0.405mm` |
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| 13133. |
Do bacteria cells have a nucleus? |
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Answer» In bacteria the genetic material is dispersed in the cytosol and there is no internal membrane that delimits a nucleus. |
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| 13134. |
What are the main respective constituents of cell walls in bacteria, protists, fungi and plants? |
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Answer» In bacteria, the cell wall is made of peptidoglycans; among protists algae have cell walls made of cellulose; in fungi, the cell wall is made of chitin (the same substance that makes the exoskeleton of arthropods); in plants, the cell wall is made of cellulose too. |
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| 13135. |
Did you ___ or ___ the potatoes? A) mince/peeled B) minced/peeled C) minced/peeling D) peels/minced E) mince/peel |
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Answer» Correct option is E) mince/peel |
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| 13136. |
The process of conversion of Sugar into Alcohol is called........a) infection b) fermentation c) moulding d) nitrogen fixation |
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Answer» The process of conversion of Sugar into Alcohol is called fermentation. |
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| 13137. |
Which of the following microbe is used in making bread?(a) Lactobacillus (b) Streptobacillus (c) Aspergillus (d) S. cerevisiae |
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Answer» S. cerevisiae is used in making bread. |
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| 13138. |
Which one of the following statements cannot be connected to Predation?(1) It might lead to extinction of a species(2) Both the interacting species are negatively impacted(3) It is necessitated by nature to maintain the ecological balance(4) It helps in maintaining species diversity in a community |
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Answer» (2) Both the interacting species are negatively impacted |
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| 13139. |
Which virus causes cancer in humans?A.Hepatits c virusB.hepatits A virusC.varcilla zoster virus |
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Answer» Answer: A.Hepatits c virus |
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| 13140. |
Henry Law’s Constants at a system temperature of 25°C (77°F) of oxygen is 756.7 atm/(mol/litre). Molar Weight of O2 is 31.9988 g/mol and partial fraction in air is ~ 0.21. Calculate the Oxygen dissolved in the Water at atmospheric pressure.(a) 0.0090 g/liter(b) 0.0089 g/liter(c) 0.0080 g/liter(d) 0.0099 g/liter |
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Answer» The correct choice is (b) 0.0089 g/liter Easiest explanation: Oxygen dissolved in the Water at atmospheric pressure can be calculated as: c = pg / kH co = (1 atm) 0.21 / (756.7 atm/(mol/litre)) (31.9988 g/mol) = 0.0089 g/liter. |
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| 13141. |
The accepted value for the density of gold metal is 19.31 g/cm^3. If a student measured the mass and volume of a sample of gold, and obtained a value of 19.03 g/cm^3, the percent difference would be ______(a) -1.5%(b) 1.5%(c) -0.5%(d) 0.5% |
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Answer» Correct answer is (a) -1.5% To elaborate: % difference = [(19.03 – 19.31) g/19.31 g] x 100% = – 1.5% A percent difference can be positive or negative; the sign shows whether the experimental value is higher or lower than the actual or theoretical value. This distinction is not used in precision since all values are experimental. |
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| 13142. |
Energy is measured in ________(a) Micronutrient(b) Macronutrient(c) Calories(d) Kilogram |
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Answer» The correct option is (c) Calories Best explanation: A calorie is a unit that is used to measure energy. The Calorie you see on a food package is actually a kilocalorie, or 1,000 calories. A Calorie (kcal) is the amount of energy needed to raise the temperature of 1 kilogram of water 1 degree Celsius. |
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| 13143. |
Which of the following is not an intensive property?(a) Temperature(b) Density(c) Mass(d) Mole fraction |
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Answer» Right answer is (c) Mass For explanation I would say: Temperature, density, and mole fraction are examples of properties which are independent of the size of the system; these quantities are called intensive variables. On the other hand, mass, volume and energy are extensive variables which change if mass is added to or removed from the system. |
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| 13144. |
A piece of iron rod was measured and found to be 120cms. But the actual value of the wood is 123cms. Find the relative error?(a) 3%(b) 2.5%(c) 2.43%(d) 3.43% |
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Answer» Right answer is (c) 2.43% To explain: Given: True value = 123cms Measured value = 120cms Firstly, let us find out the absolute error. We know by subtracting true value with measured value we get absolute error = 123 – 120 = 3cms Therefore, absolute error = 3cms Now, let us find out the relative error = absolute error/True value x 100 = 3/123 x 100 = 2.43% Therefore, the relative error for the given values = 2.43%. |
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| 13145. |
What term is used for Temperature measured by Thermometer?(a) Wet- bulb temperature(b) Dry- bulb temperature(c) Dew point temperature(d) Normal temperature |
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Answer» The correct answer is (b) Dry- bulb temperature For explanation I would say: The dry-bulb temperature (DBT) is the temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture. DBT is the temperature that is usually thought of as air temperature, and it is the true thermodynamic temperature. |
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| 13146. |
Nitriding process is used to increase surface hardness for which of the following materials?(a) Alloy steels(b) Low carbon steels(c) Medium carbon steels(d) High carbon steels |
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Answer» The correct choice is (a) Alloy steels Explanation: Alloy steels ( due to low carbon content) can easily undergo nitriding process. |
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| 13147. |
Which of the following is not a type of moulding sand?(a) Red sand(b) Natural sand(c) Synthetic sand(d) Loam sand |
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Answer» Right option is (a) Red sand For explanation I would say: Red sand is not counted among the moulding sands, whereas natural sand, synthetic sand and loam sand are various other types of moulding sand, which can be effectively used for casting processes. |
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| 13148. |
1. Identify the substance oxidised, substance reduced, oxidising agent and reducing agent in the reaction:Cl2 + 2l- → 2Cl- + l22. Calculate the oxidation number of underlined elements in the following compounds:(i) K2Cr2O7 (ii) HHO3 |
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Answer» 1. Cl2 is reduced, therefore Cl2 is the oxidising agent. I’ is oxidised, therefore I” is the reducing agent. (i) K2Cr2O7 (+1 × 2) + 2x +(-2 × 7) = 0 +2 + 2x – 14 =0 2x – 12 =0 2x = 12 x = +6 (ii) HHO3 (+1 × 1) + x + (-2 × 3) = 0 1+ x – 6 = 0 x – 5 = 0 x = +5 |
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| 13149. |
The scale-up process is preferred to which condition?(a) The migration of a process from the lab-scale to the pilot plant-scale(b) The migration of a process from the bench-scale to the lab-scale(c) The migration of a process from the small-scale to the lab-scale(d) The migration of a process from the bench-scale to the small-scale |
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Answer» Correct choice is (a) The migration of a process from the lab-scale to the pilot plant-scale Easy explanation: In scale-up process, product and process development tend to move forward in small steps, this reduces the risk with larger investments in the next step and production level improvement. |
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| 13150. |
Which stage is preferred for the estimation of the rate of enzymatic reaction?(a) Initial(b) Mid(c) Final(d) Stationary |
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Answer» The correct choice is (a) Initial Explanation: Typically, only initial rate data are used. This means that several batch experiments are carried out with different initial substrate concentrations; from each set of data the reaction rate is evaluated at time zero. Initial rates and corresponding initial substrate concentrations are used as (v, s) pairs which can then be plotted in various ways for determination of vmax and Km. Initial rate data are preferred for enzyme reactions because experimental conditions such as enzyme and substrate concentrations are known most accurately at the start of the reaction. |
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