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

30 kN/m

6 kN/m

12 kN/m

24 kN/m

30 kN/m

6 kN/m

12 kN/m

24 kN/m

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Machine Design
The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to

Static load

Static as well as dynamic load

Dynamic load

Completely reversed load

Static load

Static as well as dynamic load

Dynamic load

Completely reversed load

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Machine Design
The bearings of heavy series have capacity __________ over the medium series.

30 to 40%

20 to 30%

40 to 50%

10 to 20%

30 to 40%

20 to 30%

40 to 50%

10 to 20%

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Machine Design
The maximum bending stress in a curved beam having symmetrical section always occur at the

Outside fiber

Inside fiber

Neutral axis

Centroidal axis

Outside fiber

Inside fiber

Neutral axis

Centroidal axis

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Machine Design
When the shaft rotates in anticlockwise direction at high speed in a bearing, it will

Move towards left of the bearing making metal to metal contact

Move towards right of the bearing making no metal to metal contact

Move towards right of the bearing making metal to metal contact

Have contact at the bottom most of the bearing

Move towards left of the bearing making metal to metal contact

Move towards right of the bearing making no metal to metal contact

Move towards right of the bearing making metal to metal contact

Have contact at the bottom most of the bearing

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Machine Design
A bolt

Has a head on one end and a nut fitted to the other

Is provided with pointed threads

Has head at one end and other end fits into a tapped hole in the other part to be joined

Has both the ends threaded

Has a head on one end and a nut fitted to the other

Is provided with pointed threads

Has head at one end and other end fits into a tapped hole in the other part to be joined

Has both the ends threaded

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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 The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to

Machine Design The bearings of heavy series have capacity __________ over the medium series.

Machine Design The maximum bending stress in a curved beam having symmetrical section always occur at the

Machine Design When the shaft rotates in anticlockwise direction at high speed in a bearing, it will

Machine Design A bolt

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
The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to

Machine Design
The bearings of heavy series have capacity __________ over the medium series.

Machine Design
The maximum bending stress in a curved beam having symmetrical section always occur at the

Machine Design
When the shaft rotates in anticlockwise direction at high speed in a bearing, it will

Machine Design
A bolt