In a locomotive, the ratio of the connecting rod length to the crank radius is kept very large in order to

In a locomotive, the ratio of the connecting rod length to the crank radius is kept very large in order to Correct Answer minimize the effect of secondary forces

As l increases FS decreases Hence the ratio is kept large to avoid secondary forces for each balancing.

Related Questions

The primary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, $$\omega $$ = Angular speed of crank, r = Radius of crank, $$\theta $$ = Angle of inclination of crank with the line of stroke and n = Ratio of the length of connecting rod to radius of crank)
The secondary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, $$\omega $$ = Angular speed of crank, r = Radius of crank, $$\theta $$ = Angle of inclination of crank with the line of stroke and n = Ratio of the length of connecting rod to radius of crank)