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1.
Determine the power transmitted if dead weight on brake is 70 kg and engine has a speed of 300 rpm. One end of the rope has a diameter of 0.05 m is attached to a spring balance which has reading of 150 N, diameter of drum is 1 m.
2.
If brakes are applied on front wheels of a car and if it moves on a level road, then retardation of the car is calculated using the formula
3.
Calculate torque transmitted by the clutch having four shoes, which has spring force of 700 N and centrifugal force of 4000 N. Rim diameter is 560 mm and coefficient of friction is 0.3
4.
In centrifugal clutches, when is the contact between shoe friction lining and surface of drum observed?
5.
Which clutch is known as wet clutch?
6.
Which of the following statements is/are true?
7.
The internal and external diameter of a shaft are 300 mm and 500 mm respectively. Thrust pressure is 6 x 106 N/m2.Calculate the load on the shaft which is taken by 5 collars.
8.
What are crank effort diagrams?
9.
On which factors does law of friction depend?
10.
Which formula is used to calculate correction couple?