A. low.er heating value
B. higher heating value
C. heating value
D. higher calorific value
E. highest calorific value
Related Mcqs:
- 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 - Maximum temprature in a gas turbine is of the order of COMPRESSORS, GAS TURBINES AND JET ENGINES______________________?
A. 2500°C
B. 2000°C
C. 1500°C
D. 1000°C
E. 700°C - Gas turbines for power generaion are normally used___________________?
A. to supply base load requirements
B. to supply peak load requirements
C. to enable start thermal power plant
D. in emergency
E. when other sources of power fail - 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 - 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. - In gas turbines^ high thermal efficiency is obtained in_________________?
A. closed cycle
B. open cycle
C. both of the above
D. closed/open depending on other con-siderations
E. unpredictable - The effective power of gas turbines is increased by adding the following in compressor__________________?
A. ammonia and water vapour
B. carbon dioxide
C. nitrogen
D. hydrogen
E. none of the above - Pressure ratio in gas turbines is the ratio of ____________________?
A. compressor pressure ratio
B. highest pressure to exhaust pressure
C. inlet pressure to exhaust pressure
D. pressures across the turbine
E. none of the above - A closed gas turbine in which fuel is burnt directly in the air is not possible because of__________________?
A. high pressure ratio
B. increasing gas temperature
C. high specific volume
D. high friction losses
E. paucity of 02 - High air-fuel ratio is used in gas turbines______________________?
A. to increase the output
B. to increase the efficiency
C. to save fuel
D. to reduce the exit temperature
E. none of the above
