21.
Bonus under Rowan scheme is paid ________.

22.
Labour cost is the second element of ________.

23.
How many rate are used to calculate wages under Taylor's differential piece rate system?

24.
The loss which arise in manufacturing activity on account of inherent nature of the product is ________.

25.
Generally types of stores are classified into ________.

26.
In order to avoid the stoppage of production due to shortage of material _______.

27.
Discarded material substances having no value is called ________.

28.
Discarded material substances having some value is ________.

29.
Which of the following is NOT a selling overhead?

30.
Idle capacity of a plant refers to the difference between ________.