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A gas turbine is not self-starting. It must be rotated at _____ of its maximum speed before fuel is turned on.
1) 25% to 30%
2) 25% to 50%
3) 20% to 30%
4) 10% to 30%
5) 15% to 30%
20% to 30%
The temperature to which the air can be raised at the turbine inlet is:
1) Directly related to the unit's size
2) A function of the air compressor inlet
3) An indication of the unit's efficiency
4) An indication of a unit's power
5) Important for proper compressor performance
An indication of the unit's efficiency
A two shaft gas turbine:
1) Does not require a starting motor
2) Is always an open cycle
3) Is always a closed cycle
4) Has the first turbine drive the prop on a turboprop engine
5) Has the load turbine downstream from the compressor turbine
Has the load turbine downstream from the compressor turbine
Early gas turbines were handicapped by:
1) Metal not being able to withstand high-speed centrifugal forces
2) Their high operating speeds
3) Metals not standing the high temperatures involved
4) Their inadequate power capability
5) The inability to get enough air into the combustion chamber
Metals not standing the high temperatures involved
The compressor on the gas turbine:
1) Is always a multistage compressor
2) Is always a reciprocating type
3) Is always of the axial type
4) Can be driven by the load turbine
5) Is always independently driven
Can be driven by the load turbine
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