The centrifugal tension in belts

Machine Design
The centrifugal tension in belts

Increases the belt tension without increasing power transmission

Increase the wrap angle

Decreases the power transmitted

Increases the power transmitted

Increases the belt tension without increasing power transmission

Increase the wrap angle

Decreases the power transmitted

Increases the power transmitted

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Machine Design
Which of the following is an anti-friction bearing?

Pedestal bearing

Journal bearing

Collar bearing

Needle bearing

Pedestal bearing

Journal bearing

Collar bearing

Needle bearing

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Machine Design
Slenderness ratio is the ratio of

Effective length of column to least radius of gyration of the column

Width of column to depth of column

Maximum size of column to minimum size of column

Effective length of column to width of column

Effective length of column to least radius of gyration of the column

Width of column to depth of column

Maximum size of column to minimum size of column

Effective length of column to width of column

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Machine Design
The bearings of medium series have capacity __________ over the light 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
A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is

5 N-m

15 N-m

7 N-m

10 N-m

5 N-m

15 N-m

7 N-m

10 N-m

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Machine Design
Split nut is a locking device in which

A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip

A slot is cut partly in middle of nut and then slot reduced by tightening screw

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at the other end

One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

A hard fibre or nylon cotter is recessed in the nut and becomes threaded as the nut is screwed on the bolt causing a tight grip

A slot is cut partly in middle of nut and then slot reduced by tightening screw

Through slots are made at top and a cotter pin is passed through these and a hole in the bolt, and cotter pin splitted and bent in reverse direction at the other end

One smaller nut is tightened over main nut and main nut tightened against smaller one by loosening, creating friction jamming

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Machine Design

Machine Design The centrifugal tension in belts

Machine Design Which of the following is an anti-friction bearing?

Machine Design Slenderness ratio is the ratio of

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

Machine Design A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is

Machine Design Split nut is a locking device in which

Machine Design
The centrifugal tension in belts

Machine Design
Which of the following is an anti-friction bearing?

Machine Design
Slenderness ratio is the ratio of

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

Machine Design
A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is

Machine Design
Split nut is a locking device in which