Q.1

__________ forces do not act in case of fluid flow.

  • Elastic
  • Tensile
  • Vibratory
  • Centrifugal
Q.2

Two piping system are said to be equivalent, when the __________ are same.

  • fluid flow rate & friction loss
  • length & friction factor
  • diameter & friction factor
  • length & diameter
Q.3

Pick out the correct statement pertaining to venturimeter.

  • A venturimeter with a fixed pressure drop discharges more, when the flow is vertically downward, than when the flow is vertically upward.
  • The co-efficient of contraction of a venturimeter is always unity.
  • For a fixed pressure drop, the discharge of a gas through a venturimeter is greater, when compressibility is taken into account, than when it is neglected.
  • none of these.
Q.4

For an unstable equilibrium of a floating body (where, M = metacentre.)

  • M is above G
  • M is below G
  • M & G coincide
  • none of these
Q.5

The actual velocity at vena-contracta for flow through an orifice from a reservoir is given by

  • Cv . 2gH
  • Cc . 2gH
  • Cd . 2gH
  • Cv . Va
Q.6

In hindered settling, the particles are

  • placed farther from the wall.
  • not affected by other particles and the wall.
  • near each other,
  • none of these.
Q.7

Rise of liquid in a capillary tube is due to

  • cohesion
  • adhesion
  • both (a) & (b)
  • neither (a) nor (b)
Q.8

A compressor that takes suction at a pressure below atmospheric and discharge against atmospheric pressure is called a __________ pump.

  • sump
  • volute
  • vacuum
  • submerged
Q.9

Weber number is the ratio of inertial force to __________ force.

  • surface tension
  • gravity
  • viscous
  • elastic
Q.10

The curve of metacentre for a floating body __________ the curve of buoyancy.

  • is always below
  • is the evolute of
  • intersects at right angle
  • is tangential to
Q.11

For an unstable equilibrium of a floating body (where, M = metacentre.)

  • M is above G
  • M is below G
  • M & G coincide
  • none of these
Q.12

The head loss due to sudden expansion is

0 h : 0 m : 1 s