Consider the following statements for a power shovel:<br/>(i) Output can be increased by reducing the angle of swing for a given depth of cut.<br/>(ii) For a given angle of swing, output will be maximum at optimum depth of cut.<br/>(iii) Output can be increased by keeping the depth of cut less than optimum depth.<br/>(iv) Output can be increased by increasing the size of shovel.

TRUE ANSWER : ?
YOUR ANSWER : ?

A critical ratio scheduling

TRUE ANSWER : ?
YOUR ANSWER : ?

In resources levelling

TRUE ANSWER : ?
YOUR ANSWER : ?