List of top Chemical, Thermal and Polymer Engineering Questions asked in CUET (PG)

Which of the following is correct?

The complementary function of the differential equation \( y'' + 16y = x \sin px, \, p = 4, \) is given by:

The first-order partial derivative of the function \( \log(\sin x + \cos y) \) with respect to the variables \( x \) and \( y \), respectively, are given by:

Which of the following is not correct?

If the function \( f(z) = x^2 + axy + by^2 + i(cx^2 + dxy + y^2) \) is analytic, then the values of \( a, b, c, \) and \( d \) are given by:

The catalyst used during the condensation of phenol and formaldehyde to obtain the highest electrical properties is:

For the manufacture of Nylon-6 by condensation polymerization of caprolactam, the temperature maintained in the reactor is about:

The kinetics and degree of polymerization of polymer during emulsion polymerization depends upon:

The polymer —A–A–A–B–B—AAA—B-——-B represents:

Polymer having high tensile strength, tensile modulus, stiffness, melting point, and heat distortion temperature combined with low specific gravity and excellent resistance to environmental stress cracking is:

Self-polymerization of reactive styrene at room temperature can be prevented by the addition of:

Diglycidyl ether of bisphenol-A and 4,4-diamino diphenyl sulfone system can be used to obtain glass-reinforced composites by the process of:

In extrusion, the primary function of the transition zone is to:
A. compress the polymer
B. melt the polymer
C. support the screen pack
D. contribute for he back pressure

Bicycle pedal is an example of:

The characteristic that deteriorates when more styrene is added to butadiene to get SBR during polymerization is:

The effect of smoke in the preparation of smoked rubber sheet is:
A. to make the rubber brown
B. to serve as a preservator
C. to make the rubber soft
D. to make the rubber blistering

Tubeless tyres can be made from:

Dynamic response of a system consists of:
A. steady state response only
B. transient state response only
C. unsteady state response only
D. non-transient state response only

Microprocessor-based systems which are increasingly being used for dedicated applications in process instrumentation are:

The lower limit of the useful working range of a transducer is determined by its:
A. error
B. noise
C. accuracy
D. stability

In a flow-nozzle type flow meter, the contraction is noticed to be:
A. gradual
B. abrupt
C. no change
D. discrete

The approach of the thermodynamic temperature scale is based on:
A. heat engine operating according to Carnot cycle
B. behaviour of a perfect gas
C. behaviour of an ideal liquid
D. principle of reversed heat engine

Routh test criterion:
A is applicable only to those systems with polynomial characterizatic equation
B. does not prove any information about the actual location of roots
C. is applicable only to those systems with non-polynomial characterizatic equation
D. Gives full information about the actual location of roots

When the damping coefficient is equal to 1 for a second-order system, then
A. both the roots will be equal
B. both the roots will be real
C. both the roots will be complex
D. both the roots will be unequal

In the McCabe-Thiele diagram for binary distillation, vertical feed line represents ......., and horizontal feed line represents ............ feed.