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Pre-Training Assessment: Gas Turbine Mechanical
Pre-Training Assessment: Gas Turbine Mechanical
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Full Name
*
The science which studies gas turbines is called
*
A. CFD
B. FCD
C. SPS
D. Flow
?What is the sequence of processes in a Brayton Cycle
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A. Isentropic expansion → Isobaric combustion → Isentropic compression → Exhaust
B. Isobaric combustion → Isentropic compression → Isentropic expansion → Exhaust
C. Isentropic compression → Isobaric combustion → Isentropic expansion → Exhaust
D. Isentropic compression → Isentropic expansion → Isobaric combustion → Exhaust
?What does 'isentropic compression' imply in the Brayton cycle
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A. Compression with heat addition
B. Compression with heat removal
C. Compression at constant pressure
D. Compression without heat exchange
?Which component increases the air pressure in a gas turbine system
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A. Combustion chamber
B. Turbine
C. Exhaust nozzle
D. Compressor
? How is mechanical energy generated in a gas turbine
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A. Through combustion inside the compressor
B. By expansion of gases in the turbine
C. By mixing air and fuel in the compressor
D. By cooling the exhaust gases
?Which of the following helps improve thermal efficiency in gas turbines
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A. Lower pressure ratios and lower inlet temperature
B. Higher turbine inlet temperatures and higher pressure ratios
C. Higher exhaust temperatures
D. Slower start-up times
?. What is a key advantage of gas turbines in aviation
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A. Very low operating temperatures
B. They require no air intake
C. High power-to-weight ratio
D. Use only solid fuels
gas gas a
?. What is a major environmental concern with gas turbines
*
A. Excessive water use
B. Nitrogen oxides (NOx) and CO₂ emissions
C. High fuel density
D. Noise from the compressor
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