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Gas Turbines and Jet Engines

The hottest point in a gas turbine is______________________?

August 15, 2021January 23, 2019 by admin
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
E. uniformly heated

Categories Compressors, Gas Turbines and Jet Engines

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

August 15, 2021January 23, 2019 by admin
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
E. unpredictable

Categories Compressors, Gas Turbines and Jet Engines

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

August 15, 2021January 23, 2019 by admin
The pressure ratio in gas turbines is of the order of__________________?

A. 2:l
b. 4:1
C. 61: 1
D. 9 : 1
E. 12:1.

Categories Compressors, Gas Turbines and Jet Engines

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

August 15, 2021January 23, 2019 by admin
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
E. 1 : 6

Categories Compressors, Gas Turbines and Jet Engines

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

August 15, 2021January 23, 2019 by admin
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
E. unpredictably

Categories Compressors, Gas Turbines and Jet Engines

Gas turbine blades are given a rake___________________?

August 15, 2021January 23, 2019 by admin
Gas turbine blades are given a rake___________________?

A. equal to zero
B. in the direction of motion of blades
C. opposite to the direction of motion of blades
D. depending on the velocity
E. none of the above

Categories Compressors, Gas Turbines and Jet Engines

The air-fuel ratio in gas turbines is of the order of ______________________?

August 15, 2021January 23, 2019 by admin
The air-fuel ratio in gas turbines is of the order of ______________________?

A. 7 : 1
B. 15 : 1
C. 30 : 1
D. 40 : 1
E. 50: 1

Categories Compressors, Gas Turbines and Jet Engines

Mechanical efficiency of gas turbines as compared to I.C engines is____________________?

August 15, 2021January 23, 2019 by admin
Mechanical efficiency of gas turbines as compared to I.C engines is____________________?

A. higher
B. lower
C. same
D. depends on on odier considerations
E. unpredictable

Categories Compressors, Gas Turbines and Jet Engines

The fuel consumption in gas turbines is accounted for by___________________?

August 15, 2021January 23, 2019 by admin
The fuel consumption in gas turbines is accounted for by___________________?

A. low.er heating value
B. higher heating value
C. heating value
D. higher calorific value
E. highest calorific value

Categories Compressors, Gas Turbines and Jet Engines

The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is_______________?

August 15, 2021January 23, 2019 by admin
The pressure ratio for an open cycle gas turbine compared to closed cycle gas turbine of same h.p. is_______________?

A. low
B. high
C. same
D. low/high depending on make and type
E. unpredictable

Categories Compressors, Gas Turbines and Jet Engines
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