Question Category: Mechanical Engineering

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The volume of air delivered in a medium capacity air compressor per unit time is
OpenVideRime asked 2 years ago • 
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For minimum work in multistage compression, assuming same index of compression in all stages
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The absolute pressure of air at the outlet of a compressor is called
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For supplying intermittent small quantity of air at high pressure, following compressor is best suited
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In n₁ and n₂ are the indices of compression for the first and second stage of compression, then the ratio of work-done on the first and second stages (W₁/W₂) with perfect intercooling is given by
OpenVideRime asked 2 years ago • 
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Which of the following statement is correct? (A) The ratio of the discharge pressure to the inlet pressure of air is called compressor efficiency (B) The compression ratio for the compressor is always greater than unity 
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The indicated work per unit mass of air delivered is
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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 inter-cooler 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)
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The volumetric efficiency of a compressor falls roughly as follows for every 5°C increase in atmospheric temperature
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The axial flow compressor is preferred in aircraft gas turbines because of
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