Machine Design
In cross or regular lay ropes

Wires are not twisted
Direction of twist of wires in strands is opposite to the direction of twist of strands
Direction of twist of wires and strands are same
Wires in two adjacent strands are twisted in opposite direction

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
In oilness bearings

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

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Set screws are

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

ANSWER DOWNLOAD EXAMIANS APP