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Recently added practice questions

2861. Two parallel wires carrying currents in the opposite directions____________________?
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A. have no effect upon each other

B. repel each other

C. they cancel out their individual magnetic fields

D. attract each other

2862. Two parallel beams of positrons moving in the same direction will________?
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A. not interact with each other

B. attract each other

C. be deflected normal to the plane containing the two beams.

D. repel each other
2863. Two Pakistani students gain highest mark for _________ exam held in China?
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A. None of these

B. oxford Exam

C. Cambridge Exam

D. Trinity Exam

2864. Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction. The speeds of the objects are____________________?
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A. 3 m/sec and 2 m/sec

B. 3 m/sec and 3 m/sec

C. 4 m/sec and 6 m/sec

D. 2 m/sec and 2 m/sec

2865. Two numbers are 30% and 37% are less than a third number .How much percent is the second number less than the first?
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A. 10%

B. 12%

C. 15%

D. 5%

2866. Two number is first increased by 10 % and then reduced by 10 % the number:__________?
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A. 3:05

B. 2:05

C. 4:5

D. 6:07

2867. Two natural numbers whose sum is 72 cannot be in the ratio:
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A. 1:02

B. 3:4

C. 3:05

D. 1:03

2868. Two much Mg may create deficiency for_____________________?
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A. K

B. Ca

C. N

D. P

2869. Two major types of muscle fibres are found in humans_____________?
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A. White and yellow

B. White and red

C. White and gray

D. white and brown

2870. Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be_____________?
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A. 1 N

B. 10 N

C. 0.1 N

D. 100 N

2871. Two holes in the disc of energy meter are drilled at the opposite sides of the spindle to_____________?
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A. eliminate creeping at no load

B. improve its ventilation

C. increase its deflecting torque

D. increase its braking torque

2872. Two generators are running in parallel. One of the generators may run as motor for which of the following reasons ?
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A. That generator takes large share of loads

B. The field of that generator is weakened

C. The speed of that generator is increased

D. The direction of that generator is reversed

2873. Two cylinders are of the same height. Their radii are in the ratio 1: 3. If the volume of the first cylinder is 40 cc. Find the volume of the second cylinder?
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A. 300 cc

B. 360 cc

C. 36 cc

D. 60 cc

2874. Two countries can gain from foreign trade if ?
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A. Cost ratios are different

B. Price ratios are different

C. Tariff rates are different

D. A and C of above
2875. Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis ?
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A. disc with larger density

B. disc with smaller density

C. both discs will have same rotational inertia

D. none of the above

2876. Two attributes are associated if expected frequency is ____________________?
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A. Greater than observed

B. Less than observed

C. Equal to observed

D. None of these

2877. Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman ?
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A. 3:04

B. Data inadequate

C. 5:03

D. 4 : 3
2878. Twentieth Amendment of Constitution of 1973 amended ___________ and ___________ schedule?
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A. 4th and 5th

B. None of above

C. 2nd and 3rd

D. 6th and 7th

2879. Twelve men can do a work in twenty days while twenty women can finish the same work in sixteen days. Find the ratio between the capacity of a man and a woman.
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A. 4:3

B. 5:04

C. 5:03

D. 3:04

2880. Twelve children take sixteen days to complete a work which can be completed by 8 adults in 12 days. After working for 3 days, sixteen adults left and six adults and four children joined them. How many days will they take to complete the remaining work ?
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A. 4 days

B. 3 days

C. 6 days

D. 8 days

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