Compressors,Gas Dynamics and Gas Turbines MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Compressors,Gas Dynamics and Gas Turbines, a fundamental topic in the field of Mechanical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Compressors,Gas Dynamics and Gas Turbines MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Compressors,Gas Dynamics and Gas Turbines mcq questions that explore various aspects of Compressors,Gas Dynamics and Gas Turbines problems. Each MCQ is crafted to challenge your understanding of Compressors,Gas Dynamics and Gas Turbines principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Compressors,Gas Dynamics and Gas Turbines MCQs are your pathway to success in mastering this essential Mechanical Engineering topic.

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Compressors,Gas Dynamics and Gas Turbines MCQs | Page 9 of 17

Q81.
The mass of gas turbine per kW developed is about __________ as that of an I.C. engine.
Discuss
Answer: (d).one-sixth
Q82.
In a centrifugal compressor, the ratio of the __________ to the blade velocity is called slip factor.
Discuss
Answer: (d).outlet velocity of flow
Q83.
In a turbo jet engine, subsequent to heat addition to compressed air, to get the power output, the working substance is expanded in
Discuss
Answer: (d).turbine blades, which is essentially an isentropic process
Q84.
The air is delivered __________ in one revolution in case of a three-lobbed rotor.
Discuss
Answer: (d).six times
Q85.
The temperature of air at the beginning of the compression stroke is __________ the atmospheric temperature.
Discuss
Answer: (c).more than
Q86.
The compressor efficiency is defined as the ratio of volume of free air delivery per stroke to the swept volume of the piston.
Discuss
Answer: (b).Incorrect
Q87.
In a gas turbine, air is obtained from the atmosphere and compressed in an air compressor.
Discuss
Answer: (a).True
Q88.
In open cycle turbo-jet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the
Discuss
Answer: (a).thrust and range of aircraft
Q89.
Gas turbine as compared to internal combustion engine
Discuss
Answer: (d).all of these
Q90.
The performance of air compressor at high altitudes will be __________ as compared to that at sea level.
Discuss
Answer: (b).lower