Cap screws are

Screws used for power transmission should have

A

low efficiency

B

high efficiency

C

very fine threads

D

strong teeth

Set screws are

A

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

B

Slotted for a screw driver and generally used with a nut

C

Used to prevent relative motion between parts

D

Similar to stud

Machine screws are

A

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

B

Slotted for a screw driver and generally used with a nut

C

Used to prevent relative motion between two parts

D

Similar to stud

Which of the following statement is correct regarding power screws?

A

The efficiency of a self locking screw can not be more than 50%

B

The efficiency of Acme (trapezoidal) thread is less than that of a square thread

C

If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50%

D

Both (A) and (B)

Ball bearing type screws are found in following application

A

Screw jack

B

Aeroplane engines

C

Crane

D

Steering mechanism

Screws are specified by their __________ diameters.

A

Minor

B

Major

C

Pitch

D

None of these

I asked him if I---borrow his cap for a day. (Fill in the gaps)

A

will

B

could

C

can

D

should

`Cap it all' Means-

A

To cover everything

B

To finish

C

To occur

D

To seize everything

His cap is better than __________.

A

me

B

I

C

us

D

mine

Each cell has a vent cap

A

to allow gases out when the cell is on charge

B

to add water to the cell if needed

C

to check the level of electrolyte

D

to do all above functions

Cap screws are

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