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Recently added practice questions

8561. In a feed-back control system G and H denote open loop and close loop transfer functions respectively. The output-input relationship is_____________?
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A. H/G

B. H/(1 + G)

C. G/(1 + H)

D. G/H

8562. In a dried skull, holes on the lingual aspects of the deciduous teeth are called_____________?
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A. Herversian canals

B. Canals of Hirchfeld and Zuckerland

C. Volkmann canals

D. Gubernacular canals
8563. In a dried skull, holes on the lingual aspects of the deciduous teeth are called_____________?
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A. Canals of Hirchfeld and Zuckerland

B. Herversian canals

C. Volkmann canals

D. Gubernacular canals
8564. In a distribution of 10, 20, 30, 40, 50, the x is 30, the sum of deviations from x will be:________?
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A. 30

B. 15

C. 60

D. Zero
8565. In a distillation column, with increase in the reflux ratio, the heat removed in the cooler ______________________?
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A. Decreases

B. Remains unaffected

C. Increases

D. And the heat required in reboiler decreases

8566. In a distillation column, the minimum residence time for liquid in the downspout is about ______________ seconds?
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A. 8

B. 180

C. 80

D. 1

8567. In a distillation column, minimum clearance to be maintained between the overflow weir and the last row of the bubble caps is ______________ cms?
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A. 20

B. 15

C. 7.5

D. 2.5

8568. In a diesel engine, the fuel is ignited by___________________?
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A. ignition

B. injected fuel

C. spark

D. heat resulting from compressing air that is supplied for combustion

E. combustion chamber

8569. In a deposit of normally consolidated clay_________________?
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A. effective stress and undrained strength increase with depth but water content decreases with depth

B. effective stress, water content and undrained strength decrease with depth

C. effective stress increases with depth but water content of soil and un-drained strength decrease with depth

D. effective stress and water content increase with depth but undrained strength decreases with depth

8570. In a D.C. shunt motor, speed is______________?
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A. independent of armature current

B. directly proportional to the armature current

C. inversely proportional to the armature current

D. proportional to the square of the current

8571. In a D.C. machine stray loss is the sum of_____________?
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A. shunt field copper loss and mechanical loss

B. total copper loss and mechanical loss

C. armature copper loss and iron loss

D. iron loss and mechanical loss
8572. In a D.C. generator:___________________?
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A. internal characteristic = magnetisation characteristic ohmic drop

B. magnetisation characteristic = external characteristic

C. external resistance = internal char-acteristic armature reaction

D. external characteristic = magnetisation characteristic ohmic drop armature reaction
8573. In a D.C. generator the ripples in the direct e.m.f. generated are reduced by_____________?
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A. using conductor of annealed copper

B. using equiliser rings

C. using carbon brushes of superior quality

D. using commutator with large number of segments

8574. In a D.C. generator the number of mechanical degrees and electrical degrees will be the same when____________?
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A. r.p.m. is less than 300

B. number of poles is 2

C. number of poles is 4

D. r.p.m. is more than 300

8575. In a D.C. generator the critical resistance refers to the resistance of_____________?
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A. field

B. load

C. brushes

D. armature

8576. In a D.C. generator the critical resistance can be increased by_____________?
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A. increasing its field resistance

B. decreasing its speed

C. decreasing its field resistance

D. increasing its speed
8577. In a D.C. generator in order to reduce sparking at brushes, the self-induced e.m.f. in the coil is neutralised by all of the following except______________?
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A. dummy coils

B. interpoles

C. shifting of axis of brushes

D. compensating winding

8578. In a CSTR _______________ varies with time ?
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A. Reaction rate

B. Concentration

C. Both A. & B.

D. Neither A. nor B.
8579. In a counterfort retaining wall, the main reinforcement is provided on the_______________?
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A. e="color: #003f1a;">4. inclined face in back counterEort

B. correct answer is

C. e="color: #003f1a;">3. bottom face in back counterfort
D. e="color: #003f1a;">2. inclined face in front counterfort
E. ="color: #003f1a;">1. bottom face in front counterfort
8580. In a consecutive reaction system of the given figure bellow, when E1 is much greater than E2, the yield of B increases with the____________________?
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A. Decrease in initial concentration of A

B. Increase of temperature

C. Decrease of temperature

D. Increase in initial concentration of A

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