Power Plant Engineering MCQ Questions & Answers | Electrical Engineering Page-5 section-1

41.
Steam turbines are governed by the following methods

A. Throttle governing

B. Nozzle control governing

C. By-pass governing

D. all of the above

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42.
The cooling section in the surface condenser

A. increases the quantity of vapour extracted along with air

B. reduces the quantity of vapour extracted along with air

C. does not affect vapour quantity extracted but reduces pump capacity of air extraction pump

D. none of the above

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43.
The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is

A. 0.555

B. 0.578

C. 0.5457

D. 0.6

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44.
The draught in locomotive boilers is produced by

A. forced fan

B. chimney

C. steam jet

D. only motion of locomotive

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45.
The percentage O₂ by volume in atmosphere air is

A. 21%

B. 23%

C. 77%

D. 79%

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46.
In a surface condenser if air is removed, there is

A. fall in absolute pressure maintained in condenser

B. rise in absolute pressure maintained in condenser

C. no change in absolute pressure in the condenser

D. rise in temperature of condensed steam

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47.
Economiser is used to heat

A. air

B. feed water

C. flue gases

D. all above

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48.
Where unpulverised coal has to be used and boiler capacity is large, the stoker which is used is

A. underfeed stoker

B. overfeed stoker

C. any

D. none of the above

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49.
The pressure on the two sides of the impulse wheel of a steam turbine

A. is same

B. is different

C. increases from one side to the other side

D. decreases from one side to the other side

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50.
Thorium Breeder Reactors are most suitable for India because

A. these develop more power

B. its technology is simple

C. abundance of thorium deposits are available in India

D. these can be easily designed

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Power Plant Engineering MCQ Questions & Answers | Electrical Engineering

41. Steam turbines are governed by the following methods

Answer & Solution

42. The cooling section in the surface condenser

Answer & Solution

43. The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is

Answer & Solution

44. The draught in locomotive boilers is produced by

Answer & Solution

45. The percentage O2 by volume in atmosphere air is

Answer & Solution

46. In a surface condenser if air is removed, there is

Answer & Solution

47. Economiser is used to heat

Answer & Solution

48. Where unpulverised coal has to be used and boiler capacity is large, the stoker which is used is

Answer & Solution

49. The pressure on the two sides of the impulse wheel of a steam turbine

Answer & Solution

50. Thorium Breeder Reactors are most suitable for India because

Answer & Solution

41.
Steam turbines are governed by the following methods

42.
The cooling section in the surface condenser

43.
The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is

44.
The draught in locomotive boilers is produced by

45.
The percentage O₂ by volume in atmosphere air is

46.
In a surface condenser if air is removed, there is

47.
Economiser is used to heat

48.
Where unpulverised coal has to be used and boiler capacity is large, the stoker which is used is

49.
The pressure on the two sides of the impulse wheel of a steam turbine

50.
Thorium Breeder Reactors are most suitable for India because