Q.1
When large gear reductions are needed _________ gears are used.
  • a) bevel
  • b) worm
  • c) helical
  • d) spur
Q.2
Which of the following is an advantage of worm gear?
  • a) Has high power losses and low transmission efficiency
  • b) Produce a lot of heat
  • c) Used for reducing speed and increasing torque
  • d) It is expensive
Q.3
The distance by which a helix advances along the axis of the gear for one turn around is called _____________
  • a) lead
  • b) axial pitch
  • c) joint line
  • d) normal link
Q.4
Bevel gears are equivalent to rolling ________
  • a) spheres
  • b) cubes
  • c) cuboids
  • d) cones
Q.5
Which of the gears has the highest contact ratio?
  • a) Worm
  • b) Bevel
  • c) Helical
  • d) Spur
Q.6
In a centrifugal clutch, what is ω?
  • a) Angular acceleration of the pulley
  • b) Angular running speed of the pulley
  • c) Angular acceleration at which the engagement begins to take place
  • d) Angular running speed at which the engagement takes place
Q.7
Which of the following clutches include shoes and spider inside the rim of the pulley?
  • a) Cone clutch
  • b) Multi plate clutch
  • c) Single plate clutch
  • d) Centrifugal clutch
Q.8
In a centrifugal clutch, what is ω?
  • a) Angular acceleration at which the engagement begins to take place
  • b) Angular running speed at which the engagement takes place
  • c) Angular running speed of the pulley
  • d) Angular acceleration of the pulley
Q.9
In a multi plate clutch, number of discs on the driving shaft is given by nTrue or false?
  • a) True
  • b) False
Q.10
In a multi plate clutch, T =N-m, n =µ = 0.3 and R = 0.1 m. Find the axial thrust.
  • a) 1800
  • b) 1250
  • c) 200
  • d) 18
0 h : 0 m : 1 s