52) A reciprocating pump is also called a _____ displacement pump.

Positive

Negative

Zero

None of the above

Answer is:

Positive

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53) Slip of a reciprocating pump is defined as the

ratio of actual discharge to the theoretical discharge

sum of actual discharge and the theoretical discharge

difference of theoretical discharge and the actual discharge

product of theoretical discharge and the actual discharge

Answer is:

difference of theoretical discharge and the actual discharge

54) Slip of a reciprocating pump is negative, when

suction pipe is short and pump is running at low speeds

delivery pipe is long and pump is running at high speeds

suction pipe is short and delivery pipe is long and the pump is running at low speeds

suction pipe is long and delivery pipe is short and the pump is running at high speeds

Answer is:

suction pipe is long and delivery pipe is short and the pump is running at high speeds

55) Head developed by a centrifugal pump is

proportional to diameter of impeller

proportional to speed of impeller

proportional to diameter and speed of impeller

none of the above

Answer is:

proportional to diameter and speed of impeller

56) In a reciprocating pump, air vessels are used to

smoothen the flow

reduce suction head

increases delivery head

reduce acceleration head

Answer is:

reduce acceleration head

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52) A reciprocating pump is also called a _____ displacement pump.

Positive

Hydraulic Machines MCQ with Answers

Related Hydraulic Machines MCQ with Answers

53) Slip of a reciprocating pump is defined as the

difference of theoretical discharge and the actual discharge

54) Slip of a reciprocating pump is negative, when

suction pipe is long and delivery pipe is short and the pump is running at high speeds

55) Head developed by a centrifugal pump is

proportional to diameter and speed of impeller

56) In a reciprocating pump, air vessels are used to

reduce acceleration head

Hydraulic Machines MCQ with Answers