Internal Combustion Engines (I.C. Engines) MCQ Questions & Answers | Mechanical Engineering

A. Maximum pressure developed

B. Minimum pressure

C. Instantaneous pressure at any instant

D. Average pressure

A. Clearance volume

B. Volumetric efficiency

C. Ignition time

D. Effective compression ratio

A. $$\frac{{{{\text{V}}_1}}}{{{{\text{V}}_0} + {{\text{V}}_1}}}$$

B. $$\frac{{{{\text{V}}_0}}}{{{{\text{V}}_0} + {{\text{V}}_1}}}$$

C. $$\frac{{2{{\text{V}}_0}}}{{{{\text{V}}_0} + {{\text{V}}_1}}}$$

D. $$\frac{{2{{\text{V}}_1}}}{{{{\text{V}}_0} + {{\text{V}}_1}}}$$

A. Piston ring and cylinder wear

B. Formation of hard coating on piston skirts

C. Oil sludge in the engine crank case

D. Detonation

A. Minimum turbulence

B. Low compression ratio

C. High thermal efficiency and power output

D. Low volumetric efficiency

A. First a mild explosion followed by a bi explosion

B. First a big explosion followed by a mil explosion

C. Both mild and big explosions occurs simultaneously

D. Never occurs

A. Increase

B. Decrease

C. Be independent

D. May increase or decrease depending on other factors

A. SEA 30

B. SAE 50

C. SAE 70

D. SAE 80

A. Geometry of the reflector

B. Energy of neutrons

C. Properties of the reflector

D. All of these

A. Benzene

B. Iso-octane

C. Normal heptane

D. Alcohol