A. Independent of
B. Inversely proportional to
C. Directly proportional to
D. None of these
✅ The correct answer is option C.
Basic Chemical Engineering MCQs
Practice Basic Chemical Engineering MCQs with answers and explanations to prepare for exams, interviews, and job tests. Our question bank covers fundamental topics such as units and dimensions, material and energy balances, fluid mechanics, thermodynamics, heat transfer, mass transfer, and chemical process basics. These multiple-choice questions are designed for students, fresh graduates, and competitive exam aspirants preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and recruitment assessments. Strengthen your core concepts and problem-solving skills with our updated Basic Chemical Engineering MCQs.
902. The following is a typical anionic collector used in flotation.
A. Ethyl dixanthogen
B. Trimethyl cetyl ammonium bromide
C. Potassium ethyl xanthate
D. LAuryl amine hydrochloride
✅ The correct answer is option C.
903. The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process?
A. Cyaniding
B. Sheardising
C. Spherodising
D. None of these
✅ The correct answer is option A.
904. The minimum temperature to which the water can be cooled in a cooling tower is the __________ temperature of air.
A. Ambient
B. Dry bulb
C. Dew point
D. Wet bulb
✅ The correct answer is option C.
905. The value of y = cp/cv. at < 500°C for air & most common gases can be safely assumed to be
A. 0.8
B. 1
C. 1.4
D. 1.8
✅ The correct answer is option C.
906. Brazing is the joining of metals
A. Without melting the base metal
B. With a non-ferrous filler
C. Both A & B
D. Neither A nor B
✅ The correct answer is option C.
907. The hardenability of steel decreases with
A. Decrease in dislocation density
B. Increase in solutionising temperature
C. Increase in strength
D. Decrease in grain size
✅ The correct answer is option D.
908. __________ forces do not act in case of fluids.
A. Vibratory
B. Centrifugal
C. Elastic
D. Tensile
✅ The correct answer is option D.
909. Which of the following is a disaccharide?
A. Lactose
B. Starch
C. Cellulose
D. Fructose
✅ The correct answer is option A.
910. An atom bomb works on the principle of
A. Nuclear fission
B. Nuclear fusion
C. Both the nuclear fission & fusion
D. Ionisation
✅ The correct answer is option A.