Practice Test | Kullabs.com
0%
  • Velocity ratio of an screw is calculated by using the formula ______.

    VR = R/r
    VR =2r/P
    VR = l/h
    Vr = Ld/Ed
  • Which one of the following is same in every simple machine?

    Load
    Effort
    Mechanical Advantage (MA)
    Velocity Ratio (VR)
  • Velocity ratio of an inclined plane is calculated by using the formula ______.

    VR = l/t
    VR = l/h
    VR = h/l
    Vr = Ld/Ed
  • Efficiency of the machine can never be _______.

    1%
    100%
    99%
    50%
  • Ideal machine are those imaginary machine which are ______.

    motioned
    gravityless
    motionless
    frictionless
  • The resistive force to be overcome is called______.

    mechanical advantage
    load
    effort
    mechanical energy
  • The value of MA is always less than VR because:

    Load is equal to effort due to no friction.
    Some of the effort is increased due to friction
    Load increases due to change in speed.
    Effort decreases due to friction.
  • You scored /7


    Take test again