100525 + Interview Questions in GENERAL QA IN GENERAL AWARENESS Page 149 InterviewSolution

7401.	Give the damaging effect of photochemistry.
Answer» The colour of fabrics fades away on exposure to sunlight.

Discussion

7402.	After ve half-life periods for a rst order reaction, what fraction of reactant remains ?
Answer» your the answer 1/32

7402.

After ve half-life periods for a rst order reaction, what fraction of reactant remains ?

Answer»

your the answer

1/32

Discussion

7403.	A first order reaction takes 40 m,ins for 30 decomposition. Calculate t½.
Answer» The correct answer is " 77.7 mins. '

Discussion

7404.	After five half-life periods for a first order reaction, what fraction of reactantremains ?
Answer» your the answer 1/32

7404.

After five half-life periods for a first order reaction, what fraction of reactantremains ?

Answer»

your the answer

1/32

Discussion

7405.	A first order reaction takes 40 m,ins for 30 decomposition. Calculate t½.
Answer» your the answer 77.7 mins

7405.

A first order reaction takes 40 m,ins for 30 decomposition. Calculate t½.

Answer»

your the answer

77.7 mins

Discussion

7406.	Give one example of pseudo first order reaction.
Answer» Hydrolysis of an ester : CH₃COOC₂H₅+ H₂O => CH₃COOH + C₂H₅OH

Discussion

7407.	State the order with respect to each reactant and overall reaction.H2 O + 3I- + 2H+- = > 2H 2 O + I3- Rate = k[H2 O2 ]1 [I]1
Answer» Order of reaction =1+1=2

Discussion

7408.	State the order with respect to each reactant and overall reaction.H2O + 3I- + 2H+ => 2H2O + I3-Rate = k[H2O2]1[I-]1
Answer» Order of reaction = 1 + 1 = 2

Discussion

7409.	The reaction given below is known asC6H5I + 2Na + ICH3 → C6H5 - CH3 + 2NaI (1) Wurtz reaction (2) Fiting reaction (3) Wurtz - Fiting reaction (4) Ullmann reaction
Answer» (3) Wurtz - Fiting reaction

Discussion

7410.	What is order of radioactive decay ?
Answer» your the answer First order

7410.

What is order of radioactive decay ?

Answer»

your the answer

First order

Discussion

7411.	A first order reaction has a rate constant 1.15 x10-3 s-1 . How long will 5 gram of this reactant take to reduce to 3 grams ?
Answer» your the answer t = 444 seconds

7411.

A first order reaction has a rate constant 1.15 x10-3 s-1 . How long will 5 gram of this reactant take to reduce to 3 grams ?

Answer»

your the answer

t = 444 seconds

Discussion

7412.	Decomposition reaction of ammonia on 1t surface has rate constant = 2.5 x10-1 mol L-1 sec-1 . What is order of reaction ?
Answer» Unit of k explain that it is zero order reaction.

Discussion

7413.	Decomposition reaction of ammonia on 1t surface has rate constant = 2.5 x10-1 mol L-1 sec-1. What is order of reaction ?
Answer» Unit of k explain that it is zero order reaction.

Discussion

7414.	A first order reaction has a rate constant 1.15 x10-3 s-1. How long will 5 gram of this reactant take to reduce to 3 grams ?
Answer» t = 444 seconds

Discussion

7415.	(a) What is the order of the reaction ? (b) What is the slope of the curve ?
Answer» (a) Zero order reaction. (b) [R] = [R₀] - kt Slope = - k

7415.

(a) What is the order of the reaction ? (b) What is the slope of the curve ?

Answer»

(a) Zero order reaction.

(b) [R] = [R₀] - kt

Slope = - k

Discussion

7416.	The conversion of the molecules X to Y follows second order kinetics. If the concentration of X is increased to three times, how will it affect the rate offormation of Y ?
Answer» your the answer 9 times

7416.

The conversion of the molecules X to Y follows second order kinetics. If the concentration of X is increased to three times, how will it affect the rate offormation of Y ?

Answer»

your the answer

9 times

Discussion

7417.	For a rst order reaction time taken for half of the reaction to complete is t 1 and 3/4 of the reaction to complete is t 2 . How are t 1 and t 2 related ?
Answer» t₂= 2t 1 because for 3/4th of the reaction to complete time required is equal to two half lives

Discussion

7418.	The following data were obtained during the first order thermal decomposition of N2O5 at constant volume :2N2O5 => 2N2O4 + O2S. No.Time per secondTotal pressure (atm)100.521000.512Calculate rate constant.
Answer» 4.98 x 10-⁴ sec-¹

Discussion

7419.	`K_2 CrO_4` oxidises `KI` in the presence of `HCl` to `I_2`. The equivalent weight of the `K_2 CrO_4` is.A. `(M_w)/(2)`B. `M_w xx (2)/(3)`C. `(M_w)/(3)`D. `(M_w)/(6)`
Answer» Correct Answer - C `3e^- + underset(x=6)(CrO_4^(2-)) rarr underset((x=6-3=3))underset(x=3)([Cr(OH)_4]^(Theta))` `:. E_w = (M_w)/(3)`.

Discussion

7420.	Statement-1:Ethers are prepared from alcohols in acid medium through `S_(N^1) or S_(N^2)` mechanisms depending upon nature of alcohol. Statement-2:`ROH+H^(+)hArr R-overset(+)OH_2` A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1C. Statement-1 is True, Statement-2 is False.D. Statement-1 is False, Statement-2 is True.
Answer» Correct Answer - A Ethers are prepared by substitution reaction of Alcohol

Discussion

7421.	Which of the following sugar is known as dextrose ?(A) Glucose(B) Fructose(C) Ribose(D) Sucrose
Answer» Option : (A) Glucose Glucose is also known as dextrose.

7421.

Which of the following sugar is known as dextrose ?(A) Glucose(B) Fructose(C) Ribose(D) Sucrose

Answer»

Option : (A) Glucose

Glucose is also known as dextrose.

Discussion

7422.	Which of the following diatomic molecular species has only π bonds according to Molecular Orbital Theory?(1) O2(2) N2(3) C2(4) Be
Answer» Correct option (3) C₂ Explanation: MO configuration C₂ is: σ1s², σ1s², σ2s², σ2s², π2p_x² = π2p²_y

7422.

Which of the following diatomic molecular species has only π bonds according to Molecular Orbital Theory?(1) O2(2) N2(3) C2(4) Be

Answer»

Correct option (3) C₂

Explanation:

MO configuration C₂ is:

σ1s², σ*1s², σ2s², σ*2s², π2p_x² = π2p²_y

Discussion

7423.	Hybridisation of PF5 is SP x dv, then value of Y is:
Answer» (1) Hybridisation of PF₅ is ⇒ sp³d so y = 1

7423.

Hybridisation of PF5 is SP x dv, then value of Y is:

Answer»

(1)

Hybridisation of PF₅ is

⇒ sp³d

so y = 1

Discussion

7424.	Which of the following has `sp^(3)d^(2)` hybridisation ?A. `[IF_(6)]^(+)`B. `SF_(6)`C. `[PCl_(6)]^(-)`D. none
Answer» Correct Answer - ABC

Discussion

7425.	The number of d-orbital participating in hybridisation in `IF_(7)` are _________.
Answer» Correct Answer - 3

Discussion

7426.	In which of the following, `d_(x^(2) - y^(2))` orbital is not participate in its hybridisation ?A. `PCl_(5)`B. `SF_(6)`C. `XeF_(4)`D. `IF_(7)`
Answer» Correct Answer - A Orbitals used in a hybridisation (A) `PCl_(5) " " S + P_(x) + P_(y) + P_(z) + d_(z^(2))` (B) `SF_(6) " " S + P_(x) + P_(y) + P_(z) + d_(z^(2)) + d_(x^(2) - y^(2))` (C ) `XeF_(4) " " S + P_(x) + P_(y) + P_(z) + d_(z^(2)) + d_(x^(2) - y^(2))` (D) `IF_(7) " " S + P_(x) + P_(y) + P_(z) + d_(z^(2)) + d_(x^(2) - y^(2)) + d_(xy)`

Discussion

7427.	In which of the following `d_(z^(2))` orbital is participating in hybridisation ?A. `sp^(3)d`B. `sp^(3)d^(2)`C. `sp^(3)d^(3)`D. none
Answer» Correct Answer - AB

Discussion

7428.	In which of the following species `d`-orbitals having `xz` and `yz` two nodel planes involved in hyridisation of central atom?A. `IO_(2)F_(2)^(ө)`B. `SF_(6)`C. `IF_(7)`D. None
Answer» Correct Answer - C

Discussion

7429.	The flow of electrons which does not pass through the battery is known as ____________(a) Conduction current(b) Leakage current(c) Charging current(d) Displacement current
Answer» Right answer is (a) Conduction current To explain I would say: Conduction current is the flow of electrons from the positive plate of the capacitor to the negative plate of the capacitor, not through the battery. Hence the type of current which flows without passing through the battery is conduction current.

Discussion

7430.	A battery converts___________(a) Electrical energy to chemical energy(b) Chemical energy to electrical energy(c) Mechanical energy to electrical energy(d) Chemical energy to mechanical energy
Answer» Correct option is (b) Chemical energy to electrical energy Explanation: A battery is a device in which the chemical elements within the battery react with each other to produce electrical energy.

Discussion

7431.	How can a magnetic field be produced?(a) Using a permanent magnet(b) Electric current(c) Using a temporary magnet(d) Using a permanent magnet or electric current
Answer» Right option is (d) Using a permanent magnet or electric current Explanation: An electric current as well as the permanent magnet produces a magnetic field whereas a temporary magnet fails to do so.

Discussion

7432.	Calculate the quantity of earthwork for 200 m length for a portion of road in an uniform ground the heights of banks at the two ends being 1.00 m and 1.60 m. The formation width is 10 mm and side slope 2:1. Assume that there is no traverse slope.(a) 3276 cu m(b) 5676 cu m(c) 6757 cu m(d) 1121 cu m
Answer» The correct choice is (a) 3276 cu m The best explanation: Quantity = (Bd+sd2) length Where, B=10 m, S=2, L=200 m, d=mean depth = (1+1.60)/2 = 1.30 m Quantity = (101.3+21.32)200 = (13=3.38)200 = 16.38200 = 3276 cu m.

Discussion

7433.	Cross-section of earthwork of road in banking is in the form of trapezium. Name the method to calculate the quantity of earthwork.(a) Longitudinal formula(b) Quadrilateral formula(c) Prismoidal formula(d) Trapezium formula
Answer» The correct answer is (c) Prismoidal formula To explain I would say: Quantity or volume = L/6 (A1+A2+4Am).

Discussion

7434.	The flow of electrons which does not pass through the battery is known as ________(a) Displacement current(b) Leakage current(c) Either displacement or leakage current(d) Neither displacement nor leakage current
Answer» Correct choice is (a) Displacement current Explanation: Displacement current is the flow of electrons from the positive plate of the capacitor to the negative plate of the capacitor, not through the battery. Hence the type of current which flows without passing through the battery is displacement current.

Discussion

7435.	What is the raw material which is not needed for steel production?(a) Paint(b) Ferro alloys(c) Water(d) Refractories
Answer» The correct choice is (a) Paint For explanation: Steel is made when iron is combined with carbon and other elements like- • Water • Flux (Limestone and Dolomite) • Refractories • Silica or Sand • Water • Ferro alloys.

Discussion

7436.	What is the value of current in an inductive circuit when there is no applied voltage?(a) Minimum(b) Maximum(c) Zero(d) Cannot be determined
Answer» The correct choice is (b) Maximum The best I can explain: The current in an inductive circuit is maximum when there is no voltage applied because the coils of the inductor store electric flux.

Discussion

7437.	Workout the quantity of earthwork for an embankment 150 m long and 10 m wide at the top. Slide slop is 2:1 and depths at each 30 m intervals are 1.2, 1.4, 1.4, 1.6, 0.60, 1.6 m.(a) 3572.9 m^3(b) 4563.7 m^3(c) 2572.8 m^3(d) 2590.0 m^3
Answer» Right choice is (c) 2572.8 m^3 For explanation I would say: Solution-

Discussion

7438.	Can ohm’s law be applied in an ac circuit?(a) Yes(b) No(c) Depends on the rms current(d) Depends on the rms voltage
Answer» Right choice is (a) Yes The best explanation: Ohm’s law can be applied in ac as well as dc circuits. It can be applied in ac circuits because the condition V=IR holds true even in ac circuits.

Discussion

7439.	The thickness of a material having dielectric strength 10MV/m is 5m, calculate the potential difference.(a) 2MV(b) 10MV(c) 50MV(d) 100MV
Answer» The correct option is (c) 50MV For explanation: Dielectric strength is the potential gradient required to cause a breakdown in the material. Potential gradient is the ratio of voltage and thickness. V=tdielectric strength= 510=50MV.

Discussion

7440.	In an inductive circuit, the current________ the voltage?(a) Leads(b) Lags(c) Is greater than(d) Is less than
Answer» Right choice is (b) Lags The best explanation: In a pure inductive circuit the voltage leads the current and the current lags the voltage by a phase difference of 90 degrees.

Discussion

7441.	___________ is the application of controlled amounts of water to plants at needed intervals.(a) Cultivation(b) Plantation(c) Watering(d) Irrigation
Answer» Right choice is (d) Irrigation The best explanation: Irrigation helps grow agricultural crops, maintain landscapes, and revegetate disturbed soils in dry areas and during periods of inadequate rainfall. Irrigation also has other uses in crop production, including frost protection, suppressing weed growth in grain fields and preventing soil. In contrast, agriculture that relies only on direct rainfall is referred to as rain-fed or dry land farming.

Discussion

7442.	What is the value of current in a discharging capacitive circuit if the initial current is 2A at time t=RC.(a) 0.74A(b) 1.26A(c) 3.67A(d) 2.89A
Answer» The correct choice is (b) 1.26A For explanation: At time t=RC, that is the time constant, we know that the value of current at that time interval is equal to 63% of the initial charge in the discharging circuit. Hence, I = 2*0.63 = 1.26A.

Discussion

7443.	What is tanϕ for RC circuit?(a) XC/R(b) XL/R(c) R/Z(d) Z/R
Answer» The correct option is (a) XC/R For explanation: From the impedance triangle, height gives capacitive reactance and base gives resistance. tanϕ=XC/R.

Discussion

7444.	Which is not the application of nomography?(a) Ballistics calculations prior to fire control systems, where calculating time was critical(b) Operations Research, to obtain results in a variety of optimization problems(c) The design of channels, pipes and weirs for regulating the flow of water(d) In measuring water velocity
Answer» The correct choice is (d) In measuring water velocity The best I can explain: The current velocity meter allows you to measure stream flow velocity in feet or meters per second and measure water depth in hundredths of a foot up to three feet. The average stream flow velocity times the cross-sectional area of the stream determines the stream flow measurement in cubic feet or meters per second.

Discussion

7445.	The expression for the current in an RC circuit is?(a) i=(V/R)e^t/RC(b) i=(V/R)e^-t/RC(c) i=(V/R)(1-e^-t/RC)(d) i=(V/R) (1-e^t/RC)
Answer» Right choice is (b) i=(V/R)e^-t/RC Easy explanation: Applying KVL to the given circuit, we get: i=i0e^-t/RC = (100/10)e^-t/100 i=10 e^-t/100.

Discussion

7446.	A regular hexagonal room has 6 rotational symmetries (rotational symmetry of order six) and 4 reflection symmetries.(a) False(b) TrueThe question was asked by my school teacher while I was bunking the class.Origin of the question is Circular, Semicircular, Hexagonal & Half Hexagonal Rooms topic in section Methods of Building Estimate & Estimate of Building of Civil Engineering Drawing
Answer» Right option is (a) False Easy explanation: A regular hexagonal room has 6 rotational symmetries (rotational symmetry of order six) and 6 reflection symmetries (six lines of symmetry), making up the dihedral group D6. The longest diagonals of a regular hexagon, connecting diametrically opposite vertices, are twice the length of one side.

Discussion

7447.	An integer is chosen at random between 1 and 100. Find the probability that it is : (i) divisible by 8. (ii) not divisible by 8.
Answer» Total number of outcomes = 98 (i) Favourable outcomes are 8,16,24,..., 96, i.e.,12 ∴Probability (integer is divisible by 8) = 12/98 or 6/49 (ii) Probability (integer is not divisible by 8) = 1-6/49 = 43/49

7447.

An integer is chosen at random between 1 and 100. Find the probability that it is : (i) divisible by 8. (ii) not divisible by 8.

Answer»

Total number of outcomes = 98

(i) Favourable outcomes are 8,16,24,..., 96, i.e.,12

∴Probability (integer is divisible by 8) = 12/98 or 6/49

(ii) Probability (integer is not divisible by 8) = 1-6/49

= 43/49

Discussion

7448.	Two different dice are tossed together. Find the probability :(i) of getting a doublet(ii) of getting a sum 10, of the numbers on the two dice.
Answer» Total number of possible outcomes = 36 (i) Doublets are (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6 ) Total number of doublets = 6 ∴ Probability (getting a doublet) = 6/36 or 1/6 (ii) Favourable outcomes are (4, 6), (5, 5), (6, 4) i.e., 3 ∴ Probability (getting a sum 10) = 3/36 or 1/12

7448.

Two different dice are tossed together. Find the probability :(i) of getting a doublet(ii) of getting a sum 10, of the numbers on the two dice.

Answer»

Total number of possible outcomes = 36

(i) Doublets are (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6 )

Total number of doublets = 6

∴ Probability (getting a doublet) = 6/36 or 1/6

(ii) Favourable outcomes are (4, 6), (5, 5), (6, 4) i.e., 3

∴ Probability (getting a sum 10) = 3/36 or 1/12

Discussion

7449.	If CD = 5 then find ∠ACD,∠BCD . Find AB, AD, BD, BC. Find the angles of triangle ABC. If the angles are 45°, 60°, 75° find the ratio of the sides?
Answer» ∠ACD = 45° (∵ A = 45° ∠ADC = 90°) ∠BCD = 30°(180 - (90 + 60)), If CD = 5 \(BD=\frac{5}{\sqrt{3}},AD=5\) AB = BD + AD = \(\frac{5}{\sqrt{3}}+5=7.886\) AB = 7.886 BC = \(\frac{5}{\sqrt{3}}\times2=\frac{10}{\sqrt{3}}=5.77,\) AC = \(5\sqrt{2}\) In ∆ABC ∠A = 45°, ∠B = 60°, ∠C = 75° Ratio of sides = 5.77 : 7.09 : 7.88

7449.

If CD = 5 then find ∠ACD,∠BCD . Find AB, AD, BD, BC. Find the angles of triangle ABC. If the angles are 45°, 60°, 75° find the ratio of the sides?

Answer»

∠ACD = 45°

(∵ A = 45° ∠ADC = 90°)

∠BCD = 30°(180 - (90 + 60)), If CD = 5

\(BD=\frac{5}{\sqrt{3}},AD=5\)

AB = BD + AD = \(\frac{5}{\sqrt{3}}+5=7.886\)

AB = 7.886

BC = \(\frac{5}{\sqrt{3}}\times2=\frac{10}{\sqrt{3}}=5.77,\) AC = \(5\sqrt{2}\)

In ∆ABC

∠A = 45°, ∠B = 60°, ∠C = 75°

Ratio of sides = 5.77 : 7.09 : 7.88

Discussion

7450.	In the figure AD = 7, CD = 8, BD = 5, ∠ADP = 50° then find ADB ?If sin 50 = AP/..... find APCalculate the area of triangle ACD
Answer» ∠ADB = 180 - 50 = 130 sin50 = \(\frac{AP}{AD}=\frac{AP}{7}\) ∴ AP = 7 x sin50 = 7 x 0.7660 = 5.362 Area of ∆ACD = \(\frac{1}{2}\,CD\times AP\) = \(\frac{1}{2}\) x 8 x 5.362 = 21.448

7450.

In the figure AD = 7, CD = 8, BD = 5, ∠ADP = 50° then find ADB ?If sin 50 = AP/..... find APCalculate the area of triangle ACD

Answer»

∠ADB = 180 - 50 = 130

sin50 = \(\frac{AP}{AD}=\frac{AP}{7}\)

∴ AP = 7 x sin50 = 7 x 0.7660 = 5.362

Area of ∆ACD = \(\frac{1}{2}\,CD\times AP\)

= \(\frac{1}{2}\) x 8 x 5.362 = 21.448

Discussion

Explore topic-wise InterviewSolutions in .

Give the damaging effect of photochemistry.

After ve half-life periods for a rst order reaction, what fraction of reactant remains ?

A first order reaction takes 40 m,ins for 30 decomposition. Calculate t½.

After five half-life periods for a first order reaction, what fraction of reactantremains ?

A first order reaction takes 40 m,ins for 30 decomposition. Calculate t½.

Give one example of pseudo first order reaction.

State the order with respect to each reactant and overall reaction.H2 O + 3I- + 2H+- = &gt; 2H 2 O + I3- Rate = k[H2 O2 ]1 [I]1

State the order with respect to each reactant and overall reaction.H2O + 3I- + 2H+ =&gt; 2H2O + I3-Rate = k[H2O2]1[I-]1

The reaction given below is known asC6H5I + 2Na + ICH3 → C6H5 - CH3 + 2NaI (1) Wurtz reaction (2) Fiting reaction (3) Wurtz - Fiting reaction (4) Ullmann reaction

What is order of radioactive decay ?

A first order reaction has a rate constant 1.15 x10-3 s-1 . How long will 5 gram of this reactant take to reduce to 3 grams ?

Decomposition reaction of ammonia on 1t surface has rate constant = 2.5 x10-1 mol L-1 sec-1 . What is order of reaction ?

Decomposition reaction of ammonia on 1t surface has rate constant = 2.5 x10-1 mol L-1 sec-1. What is order of reaction ?

A first order reaction has a rate constant 1.15 x10-3 s-1. How long will 5 gram of this reactant take to reduce to 3 grams ?

(a) What is the order of the reaction ? (b) What is the slope of the curve ?

The conversion of the molecules X to Y follows second order kinetics. If the concentration of X is increased to three times, how will it affect the rate offormation of Y ?

For a rst order reaction time taken for half of the reaction to complete is t 1 and 3/4 of the reaction to complete is t 2 . How are t 1 and t 2 related ?

The following data were obtained during the first order thermal decomposition of N2O5 at constant volume :2N2O5 =&gt; 2N2O4 + O2S. No.Time per secondTotal pressure (atm)100.521000.512Calculate rate constant.

`K_2 CrO_4` oxidises `KI` in the presence of `HCl` to `I_2`. The equivalent weight of the `K_2 CrO_4` is.A. `(M_w)/(2)`B. `M_w xx (2)/(3)`C. `(M_w)/(3)`D. `(M_w)/(6)`

Which of the following sugar is known as dextrose ?(A) Glucose(B) Fructose(C) Ribose(D) Sucrose

Which of the following diatomic molecular species has only π bonds according to Molecular Orbital Theory?(1) O2(2) N2(3) C2(4) Be

Hybridisation of PF5 is SP x dv, then value of Y is:

Which of the following has `sp^(3)d^(2)` hybridisation ?A. `[IF_(6)]^(+)`B. `SF_(6)`C. `[PCl_(6)]^(-)`D. none

The number of d-orbital participating in hybridisation in `IF_(7)` are _________.

In which of the following, `d_(x^(2) - y^(2))` orbital is not participate in its hybridisation ?A. `PCl_(5)`B. `SF_(6)`C. `XeF_(4)`D. `IF_(7)`

In which of the following `d_(z^(2))` orbital is participating in hybridisation ?A. `sp^(3)d`B. `sp^(3)d^(2)`C. `sp^(3)d^(3)`D. none

In which of the following species `d`-orbitals having `xz` and `yz` two nodel planes involved in hyridisation of central atom?A. `IO_(2)F_(2)^(ө)`B. `SF_(6)`C. `IF_(7)`D. None

The flow of electrons which does not pass through the battery is known as ____________(a) Conduction current(b) Leakage current(c) Charging current(d) Displacement current

A battery converts___________(a) Electrical energy to chemical energy(b) Chemical energy to electrical energy(c) Mechanical energy to electrical energy(d) Chemical energy to mechanical energy

How can a magnetic field be produced?(a) Using a permanent magnet(b) Electric current(c) Using a temporary magnet(d) Using a permanent magnet or electric current

Calculate the quantity of earthwork for 200 m length for a portion of road in an uniform ground the heights of banks at the two ends being 1.00 m and 1.60 m. The formation width is 10 mm and side slope 2:1. Assume that there is no traverse slope.(a) 3276 cu m(b) 5676 cu m(c) 6757 cu m(d) 1121 cu m

Cross-section of earthwork of road in banking is in the form of trapezium. Name the method to calculate the quantity of earthwork.(a) Longitudinal formula(b) Quadrilateral formula(c) Prismoidal formula(d) Trapezium formula

The flow of electrons which does not pass through the battery is known as ________(a) Displacement current(b) Leakage current(c) Either displacement or leakage current(d) Neither displacement nor leakage current

What is the raw material which is not needed for steel production?(a) Paint(b) Ferro alloys(c) Water(d) Refractories

What is the value of current in an inductive circuit when there is no applied voltage?(a) Minimum(b) Maximum(c) Zero(d) Cannot be determined

Workout the quantity of earthwork for an embankment 150 m long and 10 m wide at the top. Slide slop is 2:1 and depths at each 30 m intervals are 1.2, 1.4, 1.4, 1.6, 0.60, 1.6 m.(a) 3572.9 m^3(b) 4563.7 m^3(c) 2572.8 m^3(d) 2590.0 m^3

Can ohm’s law be applied in an ac circuit?(a) Yes(b) No(c) Depends on the rms current(d) Depends on the rms voltage

The thickness of a material having dielectric strength 10MV/m is 5m, calculate the potential difference.(a) 2MV(b) 10MV(c) 50MV(d) 100MV

In an inductive circuit, the current________ the voltage?(a) Leads(b) Lags(c) Is greater than(d) Is less than

___________ is the application of controlled amounts of water to plants at needed intervals.(a) Cultivation(b) Plantation(c) Watering(d) Irrigation

What is the value of current in a discharging capacitive circuit if the initial current is 2A at time t=RC.(a) 0.74A(b) 1.26A(c) 3.67A(d) 2.89A

What is tanϕ for RC circuit?(a) XC/R(b) XL/R(c) R/Z(d) Z/R

The expression for the current in an RC circuit is?(a) i=(V/R)e^t/RC(b) i=(V/R)e^-t/RC(c) i=(V/R)(1-e^-t/RC)(d) i=(V/R) (1-e^t/RC)

An integer is chosen at random between 1 and 100. Find the probability that it is : (i) divisible by 8. (ii) not divisible by 8.

Two different dice are tossed together. Find the probability :(i) of getting a doublet(ii) of getting a sum 10, of the numbers on the two dice.

If CD = 5 then find ∠ACD,∠BCD . Find AB, AD, BD, BC. Find the angles of triangle ABC. If the angles are 45°, 60°, 75° find the ratio of the sides?

In the figure AD = 7, CD = 8, BD = 5, ∠ADP = 50° then find ADB ?If sin 50 = AP/..... find APCalculate the area of triangle ACD

State the order with respect to each reactant and overall reaction.H2 O + 3I- + 2H+- = > 2H 2 O + I3- Rate = k[H2 O2 ]1 [I]1

State the order with respect to each reactant and overall reaction.H2O + 3I- + 2H+ => 2H2O + I3-Rate = k[H2O2]1[I-]1

The following data were obtained during the first order thermal decomposition of N2O5 at constant volume :2N2O5 => 2N2O4 + O2S. No.Time per secondTotal pressure (atm)100.521000.512Calculate rate constant.