List of practice Questions

Urea is represented as
Ammonium nitrate (a fertiliser) is coated with limestone powder to
Action of phosphoric acid on rock phosphate produces
Steam reforming of naphtha is a source of hydrogen production for nitrogenous fertiliser industry. What is the usual ratio of steam to carbon maintained in the process of steam reforming of naphtha?
Which of the following is not an intermediate distillate product in petroleum refining?
The polymer having the highest percentage in polypropylene is
The depreciation during the year ‘n’, in diminishing balance method of depreciation calculation, is calculated by multiplying a fixed percentage ‘N’ to the
Fixed charges for a chemical plant does not include the
_____ taxes are based on gross earnings
Ammonia synthesis gas is produced from natural gas by
Which is used as bleaching agent in paper industries?
Butadiene is copolymerized by
Catalyst used in the synthesis of Ammonia is
The ratio of working capital to total capital investment for most chemical plants (except for non-seasonal based products) is in the range of ______ percent.
Out of the following, the depreciation calculated by the ______ method is the maximum.
Utilities cost in the operation of chemical process plant comes under the
The total investment in a project is Rs. 10 lakhs and the annual profit is 1.5 lakhs. If the project life is 10 years, then the simple rate of return on investment is
For a given fluid, as the pipe diameter increases, the pumping cost
Operating profit of a chemical plant is equal to
In a manufacturing industry, breakeven point occurs, when the
In a single tank system, the transfer function of level to inlet flow rate is
Use of I-control along with P-control facilitates
The closed loop pole of a stable second order system could be
The transfer function for a PID controller is (where, \( \tau_I \) is the integral (reset) time and \( \tau_D \) is the derivative time.)
For an input forcing function, \( X(t) = 2t^2 \), the Laplace transform of this function is