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ME Set-3
Pressure Vessels
116

Pressure Vessels and Engines MCQ with Answers

116) The material commonly used for air craft gas turbine is

stainless steel

high alloy′ steel

duralumin

Timken, Haste and Inconel allpys

Answer is:

Timken, Haste and Inconel allpys

Pressure Vessels and Engines MCQ with Answers

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Related Pressure Vessels and Engines MCQ with Answers

117) It is not possible to use closed gas turbine cycle in aeronautical engines because

it is inefficient

it is bulky

it requires cooling water for its operation

None of these

Answer is:

it requires cooling water for its operation

118) The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of

50%

75%

85%

99%.

Answer is:

99%.

119) The maximum combustion pressure in gas turbine as compared to I.C. engine is

more

less

same

depends on other factors

Answer is:

less

120) For an irreversible gas turbine cycle, the efficiency and work ratio both depend on

pressure ratio alone

maximum cycle temperature alone

minimum cycle temperature alone

both pressure ratio and maximum cycle temperature

Answer is:

both pressure ratio and maximum cycle temperature

Pressure Vessels and Engines MCQ with Answers

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