• ( 1 ) In IC engine mechanism, which formula is used to calculate acceleration of the piston?

    • 1) ω2 r (cos θ + cos θ / n)
    • 2) ω2 r (cos θ + cos 2θ / n)
    • 3) ω2 r (cos θ - cos θ / n)
    • 4) ω2 r (cos θ - cos 2θ / n
    • Discussion in forum
      Answer : 2) ω2 r (cos θ + cos 2θ / n)
      Solution :








      discussion


      Answer : 2) ω2 r (cos θ + cos 2θ / n)

    • ( 2 ) Calculate the angle of driving shaft, if the two shafts of the Hooke's joint are inclined at an angle of 18.50°

    • 1) 45.56°
    • 2) 37.70°
    • 3) 39.17°
    • 4) 41.95°
    • Discussion in forum
      Answer : 4) 41.95°
      Solution :








      discussion


      Answer : 4) 41.95°

    • ( 3 ) Identify the type of absorption dynamometer ?

    • 1) Epicyclic dynamometer
    • 2) Prony brake dynamometer
    • 3) Torsion dynamometer
    • 4) Tatham dynamometer
    • Discussion in forum
      Answer : 2) Prony brake dynamometer
      Solution :








      discussion


      Answer : 2) Prony brake dynamometer

    • ( 5 ) Frequency of vibrations is usually expressed in

    • 1) number of cycles per minute
    • 2) number of cycles per hour
    • 3) number of cycles per second
    • 4) None of these
    • Discussion in forum
      Answer : 3) number of cycles per second
      Solution :








      discussion


      Answer : 3) number of cycles per second

    • ( 6 ) The relation between number of pairs (p) forming a kinematic chain and the number of links (l) is

    • 1) l = 2p - 3
    • 2) l = 2p - 5
    • 3) l = 2p - 4
    • 4) l = 2p - 2
    • Discussion in forum
      Answer : 3) l = 2p - 4
      Solution :








      discussion


      Answer : 3) l = 2p - 4

    • ( 7 ) The minimum force required to slide a body of weight W on a rough horizontal plane is

    • 1) W cos θ
    • 2) W tan θ
    • 3) W sin θ
    • 4) W cosec θ
    • Discussion in forum
      Answer : 3) W sin θ
      Solution :








      discussion


      Answer : 3) W sin θ

    • ( 8 ) If the damping factor for a vibrating system is unity, then the system will be

    • 1) under damped
    • 2) critically damped
    • 3) over damped
    • 4) without vibrations
    • Discussion in forum
      Answer : 2) critically damped
      Solution :








      discussion


      Answer : 2) critically damped

    • ( 9 ) In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from

    • 1) 80° - 90°
    • 2) 50° - 60°
    • 3) 60° - 70°
    • 4) 70° - 80°
    • Discussion in forum
      Answer : 1) 80° - 90°
      Solution :








      discussion


      Answer : 1) 80° - 90°

    • ( 10 ) The cam and follower is an example of

    • 1) sliding pair
    • 2) rolling pair
    • 3) higher pair
    • 4) lower pair
    • Discussion in forum
      Answer : 3) higher pair
      Solution :








      discussion


      Answer : 3) higher pair





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