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In the multiple disc clutch, if there are 6 discs on the driving shaft and 5 discs on the driven shaft, then the number of pairs of contact surfaces will be equal to
  • a)
    11
  • b)
    12
  • c)
    10
  • d)
    22
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
In the multiple disc clutch, if there are 6 discs on the driving shaft...
n = n1 + n2 -1 = 6 + 5 - 1 = 10
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In the multiple disc clutch, if there are 6 discs on the driving shaft...
Multiple Disc Clutch:
A multiple disc clutch is a type of clutch that consists of a series of alternating friction discs and steel discs. These discs are stacked together and held under pressure between two flanges or plates. The clutch is engaged when the friction discs are pressed tightly against the steel discs, allowing torque to be transmitted from the driving shaft to the driven shaft.

Number of Discs:
In this question, there are 6 discs on the driving shaft and 5 discs on the driven shaft. The driving shaft is the one connected to the engine or power source, while the driven shaft is the one that receives the torque and transfers it to the rest of the system.

Counting the Pairs of Contact Surfaces:
To determine the number of pairs of contact surfaces, we need to consider the arrangement of the discs.

- On the driving shaft, there are 6 discs. Each disc has a contact surface on both sides, so the total number of contact surfaces on the driving shaft is 6 * 2 = 12.

- On the driven shaft, there are 5 discs. Again, each disc has a contact surface on both sides, so the total number of contact surfaces on the driven shaft is 5 * 2 = 10.

Total Number of Pairs:
To find the total number of pairs of contact surfaces, we need to multiply the number of contact surfaces on the driving shaft by the number of contact surfaces on the driven shaft.

12 * 10 = 120

However, each pair of contact surfaces consists of one contact surface from the driving shaft and one contact surface from the driven shaft. So, we need to divide the total number of pairs by 2 to get the correct count.

120 / 2 = 60

Therefore, the number of pairs of contact surfaces in this multiple disc clutch arrangement is 60.

Answer:
The correct answer is option C) 10.
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