Steam Boilers, Engines, Nozzles And Turbines MCQ Questions & Answers | Mechanical Engineering

A. Condenser efficiency

B. Vacuum efficiency

C. Nozzle efficiency

D. Boiler efficiency

A. One

B. Two

C. Three

D. Four

A. High calorific value

B. Produce minimum smoke and gases

C. Ease in storing

D. High ignition point

A. α₁ = α₂ and β₁ = β₂

B. α₁ = β₁ and α₂ = β₂

C. α₁ < β₁ and α₂ > β₂

D. α₁ = β₂ and β₁ = α₂

A. Blow off cock

B. Fusible plug

C. Superheater

D. Stop valve

A. Velocity compounding

B. Pressure compounding

C. Pressure-velocity compounding

D. All of these

A. $${\text{V}} = \sqrt {2{\text{gH}}'} $$

B. $${\text{V}} = \sqrt {\frac{{2{\text{g}}}}{{{\text{H}}'}}} $$

C. $${\text{V}} = \frac{{{\text{H}}'}}{{\sqrt {2{\text{g}}} }}$$

D. $${\text{V}} = 2{\text{g}}\sqrt {{\text{H}}'} $$

A. To guide motion of the piston rod and to prevent it from bending

B. To transfer motion from the piston to the cross head

C. To convert heat energy of the steam into mechanical work

D. To exhaust steam from the cylinder at proper moment

A. 1 kg

B. $$\frac{4}{3}$$ kg

C. $$\frac{8}{3}$$ kg

D. 2 kg

A. Blading efficiency

B. Nozzle efficiency

C. Stage efficiency

D. Mechanical efficiency