Compressors, Gas Turbines & Jet Engines MCQ Question with Answer

Question No : 43
In jet engines, paraffin is usually used as the fuel because of its

Question No : 44
A compressor at high altitude will draw

Question No : 45
For minimum work required to compress and deliver a quantity of air by multistage compression

Question No : 46
The degree of reaction is usually kept ________ for all types of axial flow compressors.

Question No : 47
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)

Question No : 48
After-cooler is used to

Question No : 49
For supplying intermittent small quantity of air at high pressure, following compressor is best suited