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

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

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

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

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

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

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

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


    Take test again