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Recently added practice questions

8701. If the pH value of sewage is 7__________________?
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A. It is neutral

B. It is alkaline

C. It is acidic

D. None of these

8702. If the pH value of sewage is 7__________________?
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A. It is acidic

B. None of these

C. It is alkaline

D. It is neutral
8703. If the permissible stress in steel in tension is 140 N/mm2, then the depth of neutral axis for a singly reinforced rectangular balanced section will be___________________?
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A. 0.45 d

B. 0.35 d

C. 0.40 d

D. dependent on grade of concrete also

8704. If the permissible compressive and tensile stresses in a singly reinforced beam are 50 kg/cm2 and 1400 kg/cm2 respectively and the modular ratio is 18, the percentage area At of the steel required for an economic section, is__________________?
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A. 0.50%

8705. If the perimeter of a rectangular garden is 600 m, its length when its breadth is 100 m is________?
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A. 600 m

B. 650 m

C. 300 m

D. 200 m
8706. If the people want to have freedom of speech for that it is essential that they:
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A. Should be vigilant

B. They should leave it to the Government

C. They should leave everything to the care of the head of the government

D. They should leave it to the opposition

8707. If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be _______________ percent?
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A. 100

B. None of these

C. > 100

D. < 100

8708. If the Pakistan receives larger than expected revenues from exports then the exchange value of its currency will tend to ?
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A. appreciate

B. fluctuate more than if exports were lower

C. not be affected

D. depreciate

8709. If the output of an amplifier is 10 V and 100 mV from the output is fed back to the input, then feedback fraction is_____________?
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A. 15

B. 10

C. 1

D. 01
8710. If the optimistic time, most likely time and pessimistic time for activity A are 4, 6 and 8 respectively and for activity B are 5, 5.5 and 9 respectively, then______________?
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A. expected time of activity A is greater than the expected time of activity B

B. expected time of activity B is greater than the expected time of activity A

C. expected time of both activities A and B are same

D. none of the above

8711. If the offspring of F, (blue) is crossed with white male parent the result will be______________________?
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A. All white

B. All blue

C. All black

D. Half blue and half white
8712. If the numerator of a fraction is increased by 20% and its denominator is diminished by 25% value of the fraction is 2/15. Find the original fraction.
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A. 8-Jan

B. 6-Jan

C. 4-Jan

D. 1/12
8713. If the number obtained on interchanging the digits of a two-digit number is 18 more than the original number and the sum of the digits is 8, then what is the original number ?
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A. 26

B. Cannot be determined

C. 53

D. 35
8714. If the number obtained on interchanging the digits of a two-digit number is 18 more than the original number and the sum of the digits is 8, then what is the original number ?
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A. 35

B. Cannot be determined

C. 26

D. 53

8715. If the net present value is positive then the profitability index will be ___________?
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A. greater than two

B. less than one

C. greater than one

D. equal to

8716. If the monthly mean of average daily temperature for the hottest month of the year is 25 C and the monthly mean of the maximum daily temperature of the same month of the year is 46 C, the airport reference temperature is____________________?
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A. 48C

B. 32C

C. 35.5C

D. 25C

8717. If the minimum wage is set above the equilibrium wage rate, then another thing unchanged ?
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A. More people will be employed

B. There will excess demand in the labour market

C. There will be equilibrium in the labour market

D. There will be excess supply in the labour market

8718. If the load resistance decreases in a Zener regulator, then Zener current ______________?
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A. Stays the same

B. None of the above

C. Increases

D. Decreases
8719. If the load current drawn by unregulated power supply increases, the d.c. output voltage______________?
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A. Decreases

B. None of the above

C. Stays the same

D. Increases

8720. If the length of a combined footing for two columns l metres apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where is the distance of centre of gravity of column loads______________?
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A. y = L/2 (l + )

B. y = L/2 + (l

C. y = L (l ) )

D. y = L/2 (l )

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