A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

Machine Design
A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

12 kN/m

6 kN/m

24 kN/m

30 kN/m

12 kN/m

6 kN/m

24 kN/m

30 kN/m

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Machine Design
When compared to the rod of the same diameter and material, a wire rope

Has a much smaller load carrying capacity

Does not provide much warning before failure

Provides much greater time for remedial action before failure

Is less flexible

Has a much smaller load carrying capacity

Does not provide much warning before failure

Provides much greater time for remedial action before failure

Is less flexible

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Machine Design
A coupling used to connect two perfectly aligned shafts, is

Flange coupling

Compression coupling

All of these

Muff coupling

Flange coupling

Compression coupling

All of these

Muff coupling

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Machine Design
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately

0.7 times

0.6 times

0.8 times

0.4 times

0.7 times

0.6 times

0.8 times

0.4 times

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Machine Design
The helix angle for single helical gears ranges from

10° to 15°

20° to 35°

35° to 50°

15° to 20°

10° to 15°

20° to 35°

35° to 50°

15° to 20°

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Machine Design
The wire ropes make contact at

Anywhere in the groove of the pulley

Sides of groove of the pulley

Sides and bottom of groove of the pulley

Bottom of groove of the pulley

Anywhere in the groove of the pulley

Sides of groove of the pulley

Sides and bottom of groove of the pulley

Bottom of groove of the pulley

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Machine Design

Machine Design A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

Machine Design When compared to the rod of the same diameter and material, a wire rope

Machine Design A coupling used to connect two perfectly aligned shafts, is

Machine Design For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately

Machine Design The helix angle for single helical gears ranges from

Machine Design The wire ropes make contact at

Machine Design
A long helical spring having a spring stiffness of 12 kN/m and number of turns 20, breaks into two parts with number of turns 10 each in both the parts. If the two parts are connected in series, then the softness of the resultant spring will be

Machine Design
When compared to the rod of the same diameter and material, a wire rope

Machine Design
A coupling used to connect two perfectly aligned shafts, is

Machine Design
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately

Machine Design
The helix angle for single helical gears ranges from

Machine Design
The wire ropes make contact at