Machine Design
In oilness bearings

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

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
In hydrodynamic bearings

The oil film pressure is generated only by the rotation of the journal
Grease is used for lubrication
Do not require external supply of lubricant
The oil film is maintained by supplying oil under pressure

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
A triple riveted butt joint with double straps of unequal width is to be designed for a boiler shell. The pitch of the rivets in the outer row is double the pitch in the inner row and zigzag riveting is proposed. Which of the following statement is correct?

There are five rivets per pitch length, out of which four are in double shear and one is in single shear
There are four rivets per pitch length, all in double shear
There are five rivets per pitch length, all in double shear
There are four rivets per pitch length, out of which two are in single shear and two are in double shear

ANSWER DOWNLOAD EXAMIANS APP