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 3 of 17

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Discuss
Answer: (d).to minimise the work of compression
Q22.
For a two stage reciprocating compressor, compression from p1 to p3 is with perfect intercooling and no pressure losses. If compression in both the cylinders follows the same polytropic process and the atmospheric pressure is pa, then the intermediate pressure p2 is given by
Discuss
Answer: (b).p2 = p1.p3
Q23.
The ratio of workdone per cycle to the stroke volume of the compressor is known as
Discuss
Answer: (d).mean effective pressure
Q24.
The clearance volume in the compressor is kept minimum because it effects on volumetric efficiency.
Discuss
Answer: (a).Correct
Q25.
The inlet pressure is always __________ the discharge pressure.
Discuss
Answer: (b).less than
Discuss
Answer: (c).cause moisture and oil vapour to drop out
Q27.
The ratio of the volume of free air delivery per stroke to the swept volume of the piston, is known as
Discuss
Answer: (b).volumetric efficiency
Q28.
If p1, is the pressure of air entering the L.P. cylinder and p2 is the pressure of air leaving the L.P. cylinder (or intercooler pressure), then the ratio of cylinder diameters for a single acting, two stage reciprocating air compressor with complete intercooling is given by (where D1 = Dia. of L.P. cylinder, and D2 = Dia. of H.P. cylinder)
Discuss
Answer: (c).D1/D2 = p2/p1
Q29.
The ratio of the indicated power to the shaft power or brake power of the motor or engine required to drive the compressor, is called
Discuss
Answer: (d).mechanical efficiency
Discuss
Answer: (d).none of the above