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

A. Multistage compression

B. Cold water spray

C. Both (A) and (B) above

D. Fully insulating the cylinder

A. Electric motor

B. Engine

C. Either (A) or (B)

D. None of these

A. kg/m²

B. kg/m³

C. m³/min

D. m³/kg

A. Is self operating at zero flight speed

B. Is not self operating at zero flight speed

C. Requires no air for its operation

D. Produces a jet consisting of plasma

A. High nickel alloy

B. Stainless steel

C. Carbon steel

D. High alloy steel

A. Low frontal area

B. Higher thrust

C. High pressure rise

D. None of these

A. The propulsive matter is caused to flow around the propelled body

B. Propulsive matter is ejected from within the propelled body

C. Its functioning does not depend on presence of air

D. All of the above

A. $${{\text{p}}_2} = \frac{{{{\text{p}}_1} + {{\text{p}}_3}}}{2}$$

B. $${{\text{p}}_2} = \sqrt {{{\text{p}}_1}{{\text{p}}_3}} $$

C. $${{\text{p}}_2} = {{\text{p}}_{\text{a}}} \times \frac{{{{\text{p}}_3}}}{{{{\text{p}}_1}}}$$

D. $${{\text{p}}_2} = {{\text{p}}_{\text{a}}}\sqrt {\frac{{{{\text{p}}_3}}}{{{{\text{p}}_1}}}} $$

A. Vi = Vo

B. Vt > Vo

C. U < Vo

D. V = Uo

A. Two times

B. Three times

C. Four times

D. Six times