Question

We first make equilibrium equations of the sections involving the collar bearings or pivots by considering all the three dimensional forces acting on the section chosen and then the free body diagram is made and solved.

(a) The first part of the statement is false and other part is true

(b) The first part of the statement is false and other part is false too

(c) The first part of the statement is true and other part is false

(d) The first part of the statement is true and other part is true too

This question was addressed to me during an interview for a job.

This interesting question is from Frictional Forces on Collar Bearing, Pivot Bearings and Disks in division Friction of Engineering Mechanics

Answer 1

Right choice is (d) The first part of the statement is true and other part is true too

The explanation: We first make the free body diagram of collar bearings or pivots and then we make the equilibrium equations to satisfy the given conditions. This helps us to solve the question easily. As this reduces the part of imagination and increases accuracy too.