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Recently added practice questions

8741. If the doping level is increased, the breakdown voltage of the Zener_______________?
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A. Is increased

B. Remains the same

C. None of the above

D. Is decreased
8742. If the discharge of a centrifugal pump is throttled, then its suction lift_______________________?
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A. Increases

B. Remains unchanged

C. Decreases

D. Data insufficient to predict

8743. If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is___________________?
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A. 1 in 100

B. 1 in 60

C. 1 in 120

D. None of these

8744. If the diameter of a circle is increased by 100 % its area is increased by:_________?
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A. 400%

B. 200%

C. 300%

D. 100%

8745. if the depth of water in an open channel is greater than the critical depth, the flow is called________________?
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A. Non-critical flow

B. Critical depth

C. Shooting flow

D. Sub-critical flow
8746. If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20C, B.O.D. of the sewage is_________________?
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A. 250 mg/l

B. 150 mg/l

C. 50 mg/l

D. 100 mg/l

8747. If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20C, B.O.D. of the sewage is_________________?
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A. 100 mg/l

B. 250 mg/l

C. 50 mg/l

D. 150 mg/l

8748. If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity_________________?
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A. Remains unchanged

B. Is trebled

C. Decreases by a factor of 3

D. Decreases by a factor of 1/3

8749. If the daughter of a factory worker wants to become the president of the company for which her father works we may assume that______________?
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A. she has a different reference group than her social class would indicate

B. her father has special connections to the boss

C. she has been reading too many yuppie biographies

D. the daughter likes to daydream

8750. If the current in a capacitor leads the voltage by 80, the loss angle of the capacitor is_________________?
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A. 10

B. 80

C. 120

D. 170

8751. If the critical shear stress of a channel is xc, then the average value of shear stress required to move the grain on the bank is___________________?
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A. 1.33 TC

B. xc

C. 0.75 TC

D. 0.5 xc

8752. If the coil is wound on an iron core the flux through it will_______________?
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A. become zero

B. increase

C. decrease

D. remain the same

8753. If the circumference of a circle is 352 meters then its area in Sq.m is:________?
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A. 8956

B. 9856

C. 5986

D. 6589

8754. If the chlorophyll content in plant increases, the solar radiation transmitted:
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A. None of these

B. Decreases

C. Increases

D. Constant

8755. If the centrifugal switch of a two-value capacitor motor using two capacitors fails to open then____________?
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A. current drawn by the motor will be excessively high

B. electrolytic capacitor will, in all probability, suffer break down

C. motor will not come up to speed

D. motor will not carry the load

8756. If the central bank increases the money supply at the same time as the government increasing spending, it is suggested that investment will ?
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A. be replaced by foreign investment

B. not be reduced as much as it would have been

C. be replaced by consumer spending

D. Suffer even more

8757. If the central bank buys financial securities in the open market to increase the monetary base, this is and example of ?
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A. Open Market operations

B. financial intermediation

C. Financial regulation

D. lender of less resort

8758. If the bearing capacity of soil is 10 tonnes/cm2 and the projection of plain concrete footing from walls, is a cm, the depth D of footing is_______________?
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A. D = 0.775 a

B. D = 0.775 a

C. D = 0.0775 a

D. D = 0.775 a2

8759. If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is:
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A. 54.68

B. None of these

C. 55

D. 53.33

8760. If the autarky price of S were lower in country A than in country B then if trade were allowed ?
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A. None of the above

B. A would likely import S from B

C. A would likely export S to B

D. neither country would want to trade

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