Compressors, Gas Turbines And Jet Engines MCQ Questions & Answers | Mechanical Engineering

A. One air stream

B. Two or more air streams

C. No air stream

D. Solid fuel firing

A. To supply base load requirements

B. To supply peak load requirements

C. To enable start thermal power plant

D. In emergency

A. Isentropic compression

B. Isothermal compression

C. Polytropic compression

D. None of the above

A. Carbonisation of coal

B. Passing steam over incandescent coke

C. Passing air and a large amount of steam over waste coal at about 65°C

D. Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast

A. Carbonisation of coal

B. Passing steam over incandescent coke

C. Passing air and a large amount of steam over waste coal at about 65°C

D. Partial combustion of coal, eke, anthracite coal or charcoal in a mixed air steam blast

A. In a two stage reciprocating air compressor with complete intercooling, maximum work is saved

B. The minimum work required for a two stage reciprocating air compressor is double the work required for each stage

C. The ratio of the volume of free air delivery per stroke to the swept volume of the piston is called volumetric efficiency

D. None of the above

A. Decreasing the compression work

B. Increasing the compression work

C. Increasing the turbine work

D. Both (A) and (C) above

A. Constant volume

B. Constant temperature

C. Constant pressure

D. None of these

A. Exit nozzle, which is a constant volume process

B. Exit nozzle, which is essentially an isentropic process

C. Turbine blades, which is a constant volume process

D. Turbine blades, which is essentially an isentropic process

A. Can be driven at a very high speed

B. Produces uniform torque

C. Has more efficiency

D. All of these