Types of Belts MCQ

Test your knowledge with important Types of Belts MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Types of Belts MCQs at Bissoy

• A pulley is connected to a power transmission shaft of diameter d by means of a rectangular sunk key of width w and length l. The width of the key is taken as d/4. For full power transmission, the shearing strength of the key is equal to the torsional shearing strength of the shaft. The ratio of the length of the key to the diameter of the shaft (l/d) is
  ক

  п/4

  খ

  п/6
• When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the
  ক

  tension in the tight side of the belt

  খ

  tension in the slack side of the belt

  গ

  sum of the tensions on the tight side and slack side of the belt

  ঘ

  average tension of the tight side and slack side of the belt
• Creep in belt drive is due to
  ক

  weak material of the belt

  খ

  weak material of the pulley

  গ

  uneven extensions and contractions of the belt when it passes from tight side to slack side

  ঘ

  expansion of the belt
• The ratio of driving tensions for rope drive is same as that of V-belt drive.
  ক

  True

  খ

  False
• The ratio of the driving tensions for V-belts is _____________ times that of flat belts.
  ক

  sin β

  খ

  cos β

  গ

  cosec β

  ঘ

  sec β
• In a multiple V- belt drive, all the belts should stretch at the same rate.
  ক

  True

  খ

  False
• In a multiple V- belt drive, when a single belt is damaged, it is preferable to change the complete set to
  ক

  reduce vibration

  খ

  reduce slip

  গ

  ensure uniform loading

  ঘ

  ensure proper alignment
• The included angle for the v-belt is usually
  ক

  100 to 200

  খ

  200 to 300

  গ

  300 to 400

  ঘ

  600 to 800
• In a multiple V-belt drive, if one of the belt is broken, then we should replace
  ক

  the broken belt only

  খ

  all the belts

  গ

  the broken belt and the belts on either side of it

  ঘ

  none of the mentioned
• V-belts are usually used for
  ক

  long drives

  খ

  short drives

  গ

  long and short drives

  ঘ

  none of the mentioned
• The centrifugal tension on the belt has no effect on the power transmitted.
  ক

  True

  খ

  False
• The power transmitted by a belt is maximum when the maximum tension in the belt is __________of centrifugal tension.
  ক

  one-third

  খ

  two-third

  গ

  double

  ঘ

  three times
• When two pulleys of different diameters are connected by means of an open belt, the angle of contact at the _________pulley must be taken into consideration.
  ক

  smaller

  খ

  larger

  গ

  medium

  ঘ

  none of the mentioned
• Due to slip of belt, the velocity ratio of the belt drive increases.
  ক

  True

  খ

  False