Strength of Materials
The resultant of the following three couples 20 kg force, 0.5 m arm, + ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be

20 kg, + ve sense
10 kg, - ve sense
10 kg, + ve sense
20 kg, - ve sense

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
Which one of the following statements is not correct

the angle of repose is equal to angle of friction
the sine of the angle of repose is equal to coefficient to friction
the tangent of the angle of repose is equal to coefficient of friction
the tangent of the angle of friction is equal to coefficient of friction

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
Kinetic friction is the

Ratio of limiting friction and normal reaction
The friction force acting when the body is just about to move
The friction force acting when the body is in motion
Tangent of angle between normal reaction and the resultant of normal reaction and the limiting friction

ANSWER DOWNLOAD EXAMIANS APP