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GATE ME: Machine Design Champion Quiz 5
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Question 1
The effect of increasing the stiffness of springs of centrifugal clutch is
Question 2
Which among the following is the correct value of spring index used in many design application?
Question 3
For a spring-loaded roller-follower driven with a disc cam,
Question 4
A bolted joint is shown below. The maximum shear stress, in MPa, in the bolts at A and B, respectively are
(all dimensions in the figure are in mm )
(all dimensions in the figure are in mm )
Question 5
If a helical spring is halved in length, its spring stiffness
Question 6
A band brake having band-width of 80mm, drum diameter of 250mm, coefficient of friction of 0.25 and angle of wrap of 270 degrees is required to exert a friction torque of 1000N-m. The maximum tension (in kN) developed in the band is
Question 7
A compression spring is made of music wire of 2 mm diameter having a shear strength and shear modulus of 800 MPa and 80 GPa respectively. The mean coil diameter is 20 mm, free length is 40 mm and the number of active coils is 10. If the mean coil diameter is reduced to 10 mm, the stiffness of the spring is approximately
Question 8
A drum brake is shown in the figure. The drum is rotating in anticlockwise direction. The coefficient of friction between drum and shoe is 0.2. The dimensions shown in the figure are in mm. The braking torque (in N.m) for the brake shoe is ______ 
Question 9
A disk clutch is required to transmit 5 kW at 2000 rpm. The disk has a friction lining with coefficient of friction equal to 0.25 and bore radius of friction lining is equal to 25 mm. assume uniform contact pressure of 1 MPa. The value of outside radius of the friction lining is:
Question 10
The compliance of the spring is the:
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Feb 4ESE & GATE ME
