Chemical Engineering GATE 2022 Questions with Answer

Ques 1 Aptitude

Inhaling the smoke from a burning _________ could _________ you quickly.

Ques 2 Aptitude

A sphere of radius 𝑟 cm is packed in a box of cubical shape. What should be the minimum volume (in cm³ ) of the box that can enclose the sphere?

Ques 3 Aptitude

Pipes P and Q can fill a storage tank in full with water in 10 and 6 minutes, respectively. Pipe R draws the water out from the storage tank at a rate of 34 litres per minute. P, Q and R operate at a constant rate. If it takes one hour to completely empty a full storage tank with all the pipes operating simultaneously, what is the capacity of the storage tank (in litres)?

Ques 4 Aptitude

Six persons P, Q, R, S, T and U are sitting around a circular table facing the center not necessarily in the same order. Consider the following statements:

• P sits next to S and T.
• Q sits diametrically opposite to P.
• The shortest distance between S and R is equal to the shortest distance between T and U.

Ques 5 Aptitude

A building has several rooms and doors as shown in the top view of the building given below. The doors are closed initially.
What is the minimum number of doors that need to be opened in order to go from the point P to the point Q?

Ques 6 Aptitude

Consider the following inequalities.
(i) 3𝑝−𝑞<4
(ii) 3𝑞−𝑝<12
Which one of the following expressions below satisfies the above two inequalities?

Ques 7 Aptitude

Given below are three statements and four conclusions drawn based on the statements.
Statement 1: Some engineers are writers.
Statement 2: No writer is an actor.
Statement 3: All actors are engineers.

Conclusion I: Some writers are engineers.
Conclusion II: All engineers are actors.
Conclusion III: No actor is a writer.
Conclusion IV: Some actors are writers
. Which one of the following options can be logically inferred?

Ques 8 Chemical Engineering

A wet solid containing 20% (w/w) moisture (based on mass of bone-dry solid) is dried in a tray-dryer. The critical moisture content of the solid is 10% (w/w). The drying rate (kg·m^–2·s^–1) is constant for the first 4 hours, and then decreases linearly to half the initial value in the next 1 hour. At the end of 5 hours of drying, the percentage moisture content of the solid is ________% (w/w) (rounded off to one decimal place).

Ques 9 Chemical Engineering

A process described by the transfer function

Ques 10 Chemical Engineering

A compressor with a life of 10 years costs Rs 10 lakhs. Its yearly operating cost is Rs 0.5 lakh. If the annual compound interest rate is 8%, the amount needed at present to fund perpetual operation of the compressor is Rs _________ lakhs (rounded to first decimal place).

Ques 11 Chemical Engineering

An elementary irreversible liquid-phase reaction, 2P ⟶ Q, where the rate constant k = 2 L mol⁻¹ min⁻¹, takes place in an isothermal non-ideal reactor. The E-curve in a tracer experiment is shown in the figure. Pure P (2 mol L⁻¹) is fed to the reactor. Using the segregated model, the percentage conversion of P at the exit of the reactor is __________% (rounded off to the nearest integer).

Ques 12 Chemical Engineering

211

Ques 13 Chemical Engineering

218