Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering

A. Bourdon tube

B. Pirani Gauge

C. Micro-manometer

D. Ionisation gauge

A. $$\frac{1}{2}$$ × depth

B. $$\frac{1}{2}$$ × breadth

C. $$\frac{1}{2}$$ × sloping side

D. $$\frac{1}{4}$$ × (depth + breadth)

A. Higher

B. Lower

C. Same

D. None of these

A. Increase

B. Decrease

C. Remain same

D. Increase/decrease depending on depth of immersion

A. Pressure

B. Flow

C. Shape

D. Volume

A. Directly as the air or gas density

B. Inversely as square root of density

C. Inversely as density

D. As square of density

A. 10° to 15°

B. 15° to 20°

C. 20° to 25°

D. 25° to 30°

A. $$\frac{{14\pi {{\text{R}}^{\frac{1}{2}}}}}{{15{{\text{C}}_{\text{d}}} \times {\text{a}}\sqrt {2{\text{g}}} }}$$

B. $$\frac{{14\pi {{\text{R}}^{\frac{3}{2}}}}}{{15{{\text{C}}_{\text{d}}} \times {\text{a}}\sqrt {2{\text{g}}} }}$$

C. $$\frac{{14\pi {{\text{R}}^{\frac{5}{2}}}}}{{15{{\text{C}}_{\text{d}}} \times {\text{a}}\sqrt {2{\text{g}}} }}$$

D. $$\frac{{14\pi {{\text{R}}^{\frac{7}{2}}}}}{{15{{\text{C}}_{\text{d}}} \times {\text{a}}\sqrt {2{\text{g}}} }}$$

A. Its vapour pressure is low

B. It provides suitable meniscus for the inclined tube

C. Its density is less

D. It provides longer length for a given pressure difference

A. It has low vapour pressure

B. It is clearly visible

C. It has low surface tension

D. It can provide longer column due to low density