Mechanical Engineering - Hydraulic Machines

Why Mechanical Engineering Hydraulic Machines?

In this section you can learn and practice Mechanical Engineering Questions based on "Hydraulic Machines" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.

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How to solve Mechanical Engineering Hydraulic Machines problems?

You can easily solve all kind of Mechanical Engineering questions based on Hydraulic Machines by practicing the objective type exercises given below, also get shortcut methods to solve Mechanical Engineering Hydraulic Machines problems.

Exercise :: Hydraulic Machines - Section 1

1. 

Power required to drive a centrifugal pump is directly proportional to __________ of its impeller.

A. diameter
B. square of diameter
C. cube of diameter
D. fourth power of diameter

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

2. 

The mechanical efficiency of an impulse turbine is

A. ratio of the actual power produced by the turbine to the energy actually supplied by the turbine
B. ratio of the actual work available at the turbine to the energy imparted to the wheel
C. ratio of the Work done on the wheel to the energy of the jet
D. none of the above

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

3. 

The overshot water wheels are those in which the wheel runs entirely by the __________ of water.

A. weight
B. impulse

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

4. 

In a Kaplan turbine runner, the number of blades are generally between

A. 2 to 4
B. 4 to 8
C. 8 to l6
D. 16 to 24

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

5. 

If Hg is the gross or total head and hf is the head lost due to friction, then net or effective head (H) is given by

A. H = Hg/hf
B. H = Hg x hf
C. H = Hg + hf
D. H = Hg - hf

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

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