Machine Design
In the assembly of pulley, key and shaft

All the three are designed for equal strength
Key is made the strongest
Key is made the weakest
Pulley is made the weakest

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
In oilness bearings

Grease required to be applied after some intervals
The oil film is maintained by supplying oil under pressure
Do not require external supply of lubricant
The oil film pressure is generated only by the rotation of the journal

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Cap screws are

Similar to small size tap bolts except that a greater variety of shapes of heads are available
Provided with detachable caps
Slotted for a screw driver and generally used with a nut
Used to prevent relative motion between parts

ANSWER DOWNLOAD EXAMIANS APP