Exam preparation MCQs with answers

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Choose the correct relationship ?
  • (A)  specific gravity = gravity x density
  • (B)  dynamicviscosity = kinematicviscosity x density
  • (C)  gravity = specific gravity x density
  • (D)  kinematicviscosity = dynamicviscosity x density
  • (E)  hydrostaticforce = surface tension x gravity
Select the correct statement?
  • (A)  Local atmospheric pressure depends upon elevation of locality only
  • (B)  Standard atmospheric pressure is the mean local atmospheric pressure a* sea level
  • (C)  Local atmospheric pressure is always below standard atmospheric pressure
  • (D)  A barometer reads the difference be-tween local and standard atmospheric pressure
  • (E)  Gauge piessure is equal to atmospheric pressure plus instrument reading
Fluid is a substance that___________________?
  • (A)  cannot be subjected to shear forces
  • (B)  always expands until it fills any container
  • (C)  has the same shear stress.at a point regardless of its motion
  • (D)  cannot remain at rest under action of any shear force
  • (E)  flows
Practical fluids___________________?
  • (A)  are viscous
  • (B)  possess surface tension
  • (C)  are compressible
  • (D)  possess all the above properties
  • (E)  possess none of the above properties