1000+ Hydraulics MCQ, Objective Questions and Answers Pdf - 1

Question: 1

A hydraulic coupling belongs to

(A) energy transfer machine

(B) energy generating machine

(C) power developing machine

(D) none of the above

Question: 2

Barometres are used to measure

(A) atmospheric pressure

(B) pressure in water channels, pipes etc

(C) difference in pressure at two points

(D) very high pressure

Question: 3

The flow is called rotational if its velocity normal to the plane of area is equal to

(A) angular velocity vector

(B) thrice the angular velocity vector

(C) twice the angular velocity vector

(D) none of these

Question: 4

A piezometer opening in pipes measures

(A) negative static pressure

(B) total pressure

(C) static pressure

(D) velocity head

Question: 5

The horizontal component of the force on a curved surface is equal to

(A) weight of liquid retained by the curved area

(B) product of pressure at its centroid and the area

(C) force on a vertical projection of the curved surface

(D) weight of liquid vertically below the curved surface