Machine Design
The connecting rod bolts are tightened up with initial tension greater than the external load so that

Bolts will not loosen during service
Joint may not open up
The resultant load on the bolt would not be affected by the external cyclic load
Bolts are weakest elements

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
The creep in the belt is due to

Unequal extensions in the belt due to tight and slack side tensions
Stresses beyond elastic limit of belt material
Material of belt
Effect of temperature on belt

ANSWER DOWNLOAD EXAMIANS APP

Machine Design
Slenderness ratio is the ratio of

Width of column to depth of column
Maximum size of column to minimum size of column
Effective length of column to least radius of gyration of the column
Effective length of column to width of column

ANSWER DOWNLOAD EXAMIANS APP