51) A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the

kinetic head

velocity head

manometric head

static head

Answer is:

manometric head

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

Positive

Negative

Zero

None of the above

Answer is:

Positive

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

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51) A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal to the

manometric head

Hydraulic Machines MCQ with Answers

Related Hydraulic Machines MCQ with Answers

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

Positive

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

Hydraulic Machines MCQ with Answers