List of top Questions asked in TS PGECET- 2026

In petroleum refining, the process used for conversion of hydrocarbons to aromatics is called
In catalytic cracking
Black liquor is converted into the white liquor by
Cooking conditions in Kraft pulp process are
Unsaturated oils compared to saturated oils have
Comparing sulphate process with sulphite process it is found that
Styrene-Butadiene rubber is commercially manufactured by
Poly Tetra Fluoro Ethylene (PTFE) is known as
Sodium tripolyphosphate is mainly used in
For a typical project, the cumulative cash flow is zero at the
The ‘salvage value' of equipment at the end of project life is
In plant design, ‘de-bottlenecking' refers to
The nominal and effective interest rates are equal when the interest is compounded
The ‘Payout Time' or ‘Payback Period' is best defined as
The ‘six-tenths rule' is used to estimate
Working capital is typically what percentage of total capital investment for a chemical process plant?
For preliminary estimates, the ratio of indirect costs to direct costs for chemical plants is often in the range
Discounted cash flow method is mainly used for
The Laplace transform of the function \(f(t) = 3t\) is
Which of the following is a condition for a stable feedback control system?
Match the first order system given with the appropriate time constant shown in Table:
Temperature control of an exothermic chemical reaction taking place in a CSTR is done with the help of cooling water flowing in a jacket around the reactor. The types of valve and controller action to be recommended are
The value of ultimate period of oscillation \(P_u\) is 3 minutes and that of the ultimate controller gain \(K_u\) is 2. Select the correct set of tuning parameters (controller gain \(K_c\), the derivative time constant \(T_D\) in minutes and the integral time constant \(T_I\) in minutes) for a PID controller using Ziegler-Nichols controller settings
If ‘S' is the amount available for ‘n' interest periods for an initial principal ‘P' with the discrete compound interest rate ‘i', the present worth is given by
A first order system with a time constant of 1 minute is subjected to frequency response analysis. At an input frequency of 1 radian minute, the phase shift is: