A. Nickel
B. Cobalt
C. Vanadium
D. Platinum
✅ The correct answer is option D.
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.
142. Which of the following is an unconventional source of energy ?
A. Thermal power
B. Hydroelectric power
C. Nuclear-fusion power
D. Solar power
✅ The correct answer is option D.
143. Which of the following is used to produce draught in the locomotive boilers ?
A. Chimney
B. Induced draught fan
C. Forced draught fan
D. Steam jet arrangement
✅ The correct answer is option D.
144. For grinding of softer materials, the grinding wheel should have __________ grain size.
A. Finer
B. Coarser
C. Medium
D. Any type of
✅ The correct answer is option B.
145. Plastics as a material of construction suffer from the drawback of low
A. Machinability
B. Density
C. Strength
D. Plastic deformation
✅ The correct answer is option C.
146. Use of economiser in a boiler plant reduces the fuel consumption for steam generation by about __________ percent.
A. 1
B. 10
C. 30
D. 45
✅ The correct answer is option B.
147. Hydrocyclone is a
A. Crusher
B. Wet classifier
C. Dry classifier
D. Magnetic separator
✅ The correct answer is option B.
148. Hardness & tensile strength of austenitic stainless steel can be increased by
A. Martempering
B. Cold working
C. Normalising
D. Hardening
✅ The correct answer is option B.
149. Which of the following has the least oili-ness ?
A. Mineral oils
B. Vegetable oils
C. Greases
D. Animal oils
✅ The correct answer is option A.
150. In 18-4-1 high speed steel, 18, 4 & 1 respectively denote the percentage of
A. Chromium, tungsten & vanadium
B. Tungsten, chromium & vanadium
C. Tungsten, vanadium & chromium
D. Tungsten, chromium & molybdenum
✅ The correct answer is option B.