A tap bolt | EXAMIANS

Machine Design
A tap bolt

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

Has both the ends threaded

Has pointed threads

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

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

Has both the ends threaded

Has pointed threads

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

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Machine Design
Castle 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

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

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

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

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

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

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
A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

Hydrostatic lubricated bearing

Boundary lubricated bearing

Zero film bearing

Hydrodynamic lubricated bearing

Hydrostatic lubricated bearing

Boundary lubricated bearing

Zero film bearing

Hydrodynamic lubricated bearing

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Machine Design
When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be

1.57 d

1.2 d

0.8 d

1.8 d

1.57 d

1.2 d

0.8 d

1.8 d

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Machine Design
Set screws are

Similar to stud

Slotted for a screw driver and generally used with a nut

Used to prevent relative motion between parts

Similar to small size tap bolts except that a greater variety of shapes of heads are available

Similar to stud

Slotted for a screw driver and generally used with a nut

Used to prevent relative motion between parts

Similar to small size tap bolts except that a greater variety of shapes of heads are available

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Machine Design
Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?

Feather key

Woodruff key

Gib-head key

Tangent key

Feather key

Woodruff key

Gib-head key

Tangent key

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Machine Design

Machine Design A tap bolt

Machine Design Castle nut is a locking device in which

Machine Design A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

Machine Design When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be

Machine Design Set screws are

Machine Design Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?

Machine Design
A tap bolt

Machine Design
Castle nut is a locking device in which

Machine Design
A sliding bearing which can support steady loads without any relative motion between the journal and the bearing, is called

Machine Design
When the material of key and shaft is same, and the width of key is one-fourth of the diameter of shaft (d), then length of key will be

Machine Design
Set screws are

Machine Design
Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?