91. Annual depreciation costs are constant, when the __________ method of depreciation calculation is used.
declining balance
straight line
sum of the years digit
none of these
✅ The correct answer is option B.
Plant Economics MCQs
92. Depreciation is __________ in profit with time.
decrease
increase
no change
none of these
✅ The correct answer is option A.
93. Effluent treatment cost in a chemical plant is categorised as the __________ cost.
fixed
overhead
utilities
capital
✅ The correct answer is option C.