Infosys Certified Gasturbine Engineer
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Join Premium10 Infosys Certified Gasturbine Engineer practice questions with answers
Real Lex exam-pattern multiple-choice questions for the Infosys Certified Gasturbine Engineer certification. Each question includes the correct answer. The full question bank is available to Premium members.
- Question 1
Which of the following process is not part of the Brayton cycle?
- ✓A) Isentropic compressionCorrect
- BB) Constant pressure heat addition
- CBoth A & B
- DNone of the Above
- Question 2
Which of the following is correct for Turbo-fan engine
- ✓A) Moves large mass of air through bypass ductCorrect
- BB) Thrust generated by core flow is of the order 1/4th to 1/5th of total thrust
- CBoth A & B
- DNone of the Above
- Question 3
The pressure rise in the compressor is achieved by the following
- ✓A) From the energy imparted to the air in the rotor stage which increases the air velocityCorrect
- BB)By deceleration of air in the stator passage in which kinetic energy is translated into pressure
- CBoth A & B
- DNone of the Above
- Question 4
Which of the following is true regarding “Thrust generated” for give amount of airflow
- ✓Turbo jet generates more thrust compared to Turbo shaftCorrect
- BLow bypass turbofan generates more thrust compared high bypass turbo fan
- CLow bypass turbofan generates less thrust compared to turbo jet
- DAll of the Above
- Question 5
Which of the following helps to reduce the metal temperature of the hot turbine parts in Gasturbine
- ✓A) Secondary air bled from compressorCorrect
- BB)Thermal barrier coating
- CBoth A & B
- DNone of the Above
- Question 6
The use of air-cooled blades in the turbine assembly permits a ______ gas temperature and consequently _____ thermal efficiency
- ✓Lower , higherCorrect
- BHigher, higher
- CHigher, lower
- DLower, lower
- Question 7
What is the approximate Life expectancy of Cold parts and Hot Parts in the Aero engine respectively (for 0-max-0 cycle)
- ✓3500 Cycles and 800 CyclesCorrect
- B7000 Cycles and 3500 Cycles
- C30000 Cycles and 15000 Cycles
- DNone of the Above
- Question 8
In turbofan engine, fan is used
- ✓A) to compress the inlet air more efficientlyCorrect
- BB) to increase the total thrust of the engine
- CBoth A & B
- DNone of the Above
- Question 9
Major failure modes for Combustor are
- ✓Thermal crackingCorrect
- BBuckling of Liner
- CLiner blow out
- DAll of the Above
- Question 10
Which of the following is the major contributing failure mode of the Aero engine components
- ✓FatigueCorrect
- BStress Rupture
- CCorrosion
- DAll of the above
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