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

24 kN/m

12 kN/m

30 kN/m

6 kN/m

24 kN/m

12 kN/m

30 kN/m

6 kN/m

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Machine Design
In the levers of first type, the mechanical advantage is ________ one.

More than

Equal to

Less than

None of these

More than

Equal to

Less than

None of these

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Machine Design
The longitudinal joint in boilers is used to get the required

Efficiency of boiler

Length and diameter of boiler

Length of boiler

Diameter of boiler

Efficiency of boiler

Length and diameter of boiler

Length of boiler

Diameter of boiler

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Machine Design
When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

Internal bevel gears

Angular bevel gears

Mitre gears

Crown bevel gears

Internal bevel gears

Angular bevel gears

Mitre gears

Crown bevel gears

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Machine Design
For same pulley diameters, center distance, belt speed and belt and pulley materials,

Open and crossed belt drives transmit same power

Power transmission does not depend upon open and crossed types of constructions

Crossed belt drive transmits more power than open belt drive

Open belt drive transmits more power than crossed belt drive

Open and crossed belt drives transmit same power

Power transmission does not depend upon open and crossed types of constructions

Crossed belt drive transmits more power than open belt drive

Open belt drive transmits more power than crossed belt drive

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

20 to 30%

10 to 20%

40 to 50%

30 to 40%

20 to 30%

10 to 20%

40 to 50%

30 to 40%

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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 In the levers of first type, the mechanical advantage is ________ one.

Machine Design The longitudinal joint in boilers is used to get the required

Machine Design When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

Machine Design For same pulley diameters, center distance, belt speed and belt and pulley materials,

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

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
In the levers of first type, the mechanical advantage is ________ one.

Machine Design
The longitudinal joint in boilers is used to get the required

Machine Design
When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and one of the bevel gears has a pitch angle of 90°, then they are known as

Machine Design
For same pulley diameters, center distance, belt speed and belt and pulley materials,

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