Chapter 71

Question 0

The combustion chamber of a gas turbine:
A) increases the pressure of the compressed air
B) is heated between the load turbine and the compression turbine
C) burns fuel with excess air
D) is water cooled
E) rotates at shaft speed

Answer 0

C) burns fuel with excess air

Question 1

Gas turbines are ideal when considering:
A) long warmup periods
B) emergency power generation
C) automotive power
D) cooling water pump operation
E) good thermal efficiency

Answer 1

B) emergency power production

Question 2

The output power of a gas turbine is directly related to the:
A) mass of gas passing through the turbine per second
B) temperature at the turbine inlet
C) mass of the unit
D) slippage between the turbine and compressor
E) turbine exhaust temperature

Answer 2

A) mass of gas passing through the turbine per second

Question 3

The purpose of a regenerator is to:
A) clean the exhaust gases
B) improve the efficiency of the turbine
C) increase the temperature in the combustion chamber
D) lower the temperature in the combustion chamber
E) recirculate the exhaust gases back through the compressor

Answer 3

B) increase the efficiency of the turbine

Question 4

Approximately _____ of the power produced by a gas turbine is used to drive the turbine compressor.

Answer 4

2/3

Question 5

Incorporating a steam boiler and a gas turbine together is commonly called a ___________ system known for its thermodynamically efficient use of __________________.

Answer 5

Combined cycle or cogeneration, the exhaust heat from the gas turbine