Hydraulics And Fluid Mechanics MCQ Questions & Answers

Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering

Learn Hydraulics And Fluid Mechanics MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Hydraulics And Fluid Mechanics MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-5 section-5

Which type of the pump is different from others in the same group?

A) Screw pump B) Gear pump C) Cam and piston pump D) Plunger pump

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Cavitation will begin when

A) The pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid B) Pressure becomes more than critical pressure C) Flow is increased D) Pressure is increased

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The coefficient of discharge for an external mouthpiece is

A) 0.375 B) 0.5 C) 0.707 D) 0.855

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The intensity of pressure on an immersed surface __________ with the increase in depth.

A) Does not change B) Increases C) Decreases D) None of these

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The efficiency of a Pelton wheel working under constant head ________ with the increase in power.

A) Remain same B) Increases C) Decreases D) None of these

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The static head of a centrifugal pump is equal to the _________ of suction head and delivery head.

A) Product B) Difference C) Sum D) None of these

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The discharge through a convergent mouthpiece is __________ the discharge through an internal mouthpiece of the same diameter and head of water.

A) Equal to B) One-half C) Three fourth D) Double

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

A Piezometer tube is used only for measuring

A) Low pressure B) High pressure C) Moderate pressure D) Vacuum pressure

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

According to Manning's formula, the discharge through an open channel is (where M = Manning's constant)

A) $${\text{A}} \times {\text{M}} \times {{\text{m}}^{\frac{1}{2}}} \times {{\text{i}}^{\frac{2}{3}}}$$ B) $${\text{A}} \times {\text{M}} \times {{\text{m}}^{\frac{2}{3}}} \times {{\text{i}}^{\frac{1}{2}}}$$ C) $${{\text{A}}^{\frac{1}{2}}} \times {{\text{M}}^{\frac{2}{3}}} \times {\text{m}} \times {\text{i}}$$ D) $${{\text{A}}^{\frac{2}{3}}} \times {{\text{M}}^{\frac{1}{3}}} \times {\text{m}} \times {\text{i}}$$

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The ratio of the normal force of jet of water on a plate inclined at an angle of 30° as compared to that when the plate is normal to jet, is

A) $$\frac{1}{{\sqrt 2 }}$$ B) $$\frac{1}{2}$$ C) $$1$$ D) $$\sqrt 2 $$

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Hydraulics And Fluid Mechanics MCQ Questions &amp; Answers | Mechanical Engineering

Hydraulics And Fluid Mechanics MCQ Questions & Answers | Mechanical Engineering