Mechanical Engineering Mcqs

A) CO₂

B) CO

C) O₂

D) N₂

A) Hygroscopic substances

B) Water vapour in air

C) Temperature of air

D) Pressure of air

A) Regeneration

B) Reheating of steam

C) Both A and B

D) Cooling of steam

A) Producer gas

B) Coal gas

C) Water gas

D) Blast furnace gas

A)2-4 m

B) 3-5 m

C) 5-7.5 m

D) 7-9 m

A) Carnot cycle

B) Joule cycle

C) Stirling cycle

D) Brayton cycle

A) Flue gases pass through tubes and water around it

B) Water passes through the tubes and flue gases around it

C) Work is done during adiabatic expansion

D) Change

A) Ash

B) Volatile matter

C) Moisture

D) Hydrogen

A) Locomotive boiler

B) Babcock and Wilcox boiler

C) Stirling boiler

D) All of the above

A) Atmospheric pressure

B) 5 kg/cm²

C) 10 kg/cm²

D) 75-80 kg/cm²