Mechanical Engineering - Hydraulic Machines

Exercise :: Hydraulic Machines - Section 3

1. 

Slip of a reciprocating pump is negative, when

A. suction pipe is short and pump is running at low speeds
B. delivery pipe is long and pump is running at high speeds
C. suction pipe is short and delivery pipe is long and the pump is running at low speeds
D. suction pipe is long and delivery pipe is short and the pump is running at high speeds

Answer: Option D

Explanation:

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2. 

Which of the following is not an impulse turbine?

A. Girad turbine
B. Turgo turbine
C. Pelton wheel
D. Kaplan turbine

Answer: Option D

Explanation:

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3. 

A hydraulic accumulator is a device used to store __________ energy which may be supplied to a machine later on.

A. strain
B. pressure
C. kinetic

Answer: Option B

Explanation:

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4. 

The Furneyron turbine is __________ reaction turbine.

A. an axial flow
B. an inward flow
C. an outward flow
D. a mixed flow

Answer: Option C

Explanation:

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5. 

The discharge through a turbine is

A. directly proportional to H1/2
B. inversely proportional to H1/2
C. directly proportional to H3/2
D. inversely proportional to H3/2

Answer: Option A

Explanation:

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