List of top Chemical Engineering Questions

For a stable closed loop system, the gain at phase crossover frequency should always be:
For a first order reaction, the starting material reduces to \( \dfrac{1}{4} \) of its initial value after 20 min.
The rate constant of the reaction will be: (Given \( \ln 4 = 1.38 \))
1 mole of Argon gas is heated at constant pressure from 200 K to 600 K.
If \( C_p = 4\ \text{cal} \cdot \text{deg}^{-1} \cdot \text{mol}^{-1} \), then the change in entropy will be:
(Given \( \ln 3 = 1.09 \))
Which statement about entropy is incorrect?
............... act as a catalyst in anionic polymerisation.
............... is the waste liquor from the Kraft pulping process after pulping is completed.
............... is not an intermediate distillate product in petroleum refining.
Which of the following is fully synthetic first produced fibre?
............... includes the largest fraction of petroleum crude.
The Ostwald process is used to produce:
The term "circular economy" in chemical technology refers to:
The Kraft process of chemical pulping involves a mixture of two chemicals in water which are?
In the Haber process of ammonia preparation, the catalyst and the promoter are
Hydrogenation is the conversion of unsaturated acid groups into the saturated using ............... catalyst.
Which of the following equipment has the maximum capital cost contribution in a chemical plant?
Polythene is the polymer obtained during polymerization of
LPG contains mostly:
For which refractory material the thermal conductivity decreases with increasing temperature?
Equipment costs generally follow the relation:
For a commercial fertilizer designated as 5-20-20 the numbers indicate what information about the composition?
A compressor design primarily depends on:
For a business if the net profit is 10 Lakhs and total capital investment is 5 crore rupees, then the return on investment in percentage will be:
Profitability calculation method that includes time value of money is:
Which of the following is a limitation of the payback period method?
A pump has an installed cost of Rs. 40,000 and a 10-year estimated life. The salvage value of the pump is zero at the end of 10 years. The pump value (in rupees) after depreciation by the double declining balance method, at the end of 6 years is: