1000+ Hydraulics Objective Questions and Answers Pdf - 1

Question: 1

The units of surface tension are

(A) it is dimensionless

(B) force/unit area

(C) same as units of force

(D) energy/unit area

Ans: D

energy/unit area

Question: 2

The boundary layer separation tales place if

(A) pressure gradient is negative

(B) pressure gradient is zero

(C) pressure gradient is positive

(D) none of the above

Ans: C

pressure gradient is positive

Question: 3

Type of impeller used in mud pumps is

(A) double section

(B) open

(C) one side shrouded

(D) shrouded

Ans: B


Question: 4

The hydraulic radius is given by

(A) area divided by wetted perimeter

(B) area divided by square of wetted perimeter

(C) wetted perimeter divided by area

(D) square root of area

Ans: A

area divided by wetted perimeter

Question: 5

Which type of turbine is different from others?

(A) kaplan turbine

(B) girard turbine

(C) banki turbine

(D) pelton wheel

Ans: A

kaplan turbine

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