The thermal efficiency of a gas turbine as compared to a diesel plant is__________________?

A. Same
B. More
C. Less
D. Depends on other factors

The ratio of specific weighf/h.p. of gas turbin and I.C engines may be typically of the order of_______________________?

A. 1 : 1
B. 2 : 1
C. 4 : 1
D. 1:2

The pressure ratio in gas turbines is of the order of__________________?

A. 2:l
B. 4:1
C. 61: 1
D. 9 : 1

Temperature of gases at end of compression as compared to exhaust gases in a gas turbine is_________________?

A. Higher
B. Lower
C. Equal
D. Can’t be compared

The hottest point in a gas turbine is______________________?

A. At the base
B. At the tip
C. In the center
D. Between ~ to i of the blade height

Efficiency of gas turbine is increased by________________ ?

A. Reheating
B. Inter cooling
C. Adding a regenerator
D. All of the above

The following is true for an open cycle gas turbine having exhaust heat exchanger. Atmospheric air before entering the compressor is____________________?

A. Heated
B. Compressed air before entering the combustion chamber is heated
C. Bled gas from turbine is heated and readmitted for complete expansion
D. Exhaust gases drive the compressor

The thermal efficiency of a simple gas turbine for a given turbine inlet temperature with increase in pressure ratio_____________________?

A. Increases
B. Decreases
C. First increases and then decreases
D. First decreases and then increases

Water gas is produced by ___________________ ?

A. Carbonisation of coal
B. Passing steam over incandescent coke
C. Passing air and a large amount of steam over waste coal at about 65°c
D. Partial combustion of caol, eke, anthractie coal or charcoal in a mixed air steam blast

The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of________________?

A. 50%
B. 75%
C. 85%
D. 90%