Test: Balancing - 2 - Mechanical Engineering MCQ

Secondary force has twice the frequency of primary force is generally neglected at low speeds. Secondary force has twice the frequency of primary force is generally neglected at low speeds.

In reciprocating masses, usually two-third of primary forces are balanced.

Since reciprocating mass cannot balance fully hence partial balancing of reciprocating mass is done while revolving masses can be balanced fully.

Hammer Blow: The maximum magnitude of unbalanced force along the line perpendicular to the line of stroke is called hammer blow.

Swaying couple: The maximum magnitude of the unbalanced force along the line parallel to the line of stroke is called swaying couple.

Tractive effort

For maximum and minimum tractive effort


Hence maximum and minimum value of tractive effort is