Exam preparation MCQs with answers

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In a static fluid ___________________?
  • (A)  resistance to shear stress is small
  • (B)  fluid pressure is zero
  • (C)  linear deformation is small
  • (D)  only normal stresses can exist
  • (E)  viscosity is nil
Bell metal contains_____________________?
  • (A)  70% copper and 30% zinc
  • (B)  90% copper and 10% tin
  • (C)  85-92% copper and rest tin with little lead and nickel
  • (D)  70-75% copper and rest tin
  • (E)  70-75% copper and rest zinc and tin
Surface tension__________________?
  • (A)  acts in the plane of the interface normal to any line in the surface
  • (B)  is also known as capillarity
  • (C)  is a function of the curvature of the interface
  • (D)  decreases with fall in temperature
  • (E)  has no units