A. Voltage sensitive null
B. Voltage sensitive deflected
C. Current sensitive deflected
D. None of these
✅ The correct answer is option B.
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.
732. Hot & cold working of material causes its __________ deformation.
A. Visco-elastic
B. Isotropic
C. Elastic
D. Plastic
✅ The correct answer is option D.
733. During sensible cooling of air, its wet bulb temperature
A. Decreases but dew point remains constant
B. Increases but dew point remains constant
C. Increases & the dew point decreases
D. Decreases & the dew point increases
✅ The correct answer is option B.
734. A material is capable of resisting softening at high temperature, because of its property termed as
A. Hot temper
B. Hot hardness
C. Fatigue
D. Creep
✅ The correct answer is option B.
735. A fine grained grinding wheel should not be used for grinding __________ materials.
A. Hard
B. Brittle
C. Soft & ductile
D. None of these
✅ The correct answer is option C.
736. Carbon is present in the form of __________ in grey cast iron.
A. Spheroids
B. Nodular aggregates of graphite
C. Flakes
D. Cementite
✅ The correct answer is option C.
737. Blast furnace slag is mainly molten
A. Sand
B. Magnesium silicate
C. Calcium silicate
D. Iron pyrite
✅ The correct answer is option C.
738. If the demand for an item is trebled and the order cost is reduced to one third, then the economic order quantity
A. Is trebled
B. Remains unchanged
C. Decreases by a factor of √3
D. Decreases by a factor of 1/3
✅ The correct answer is option B.
739. Which of the following is termed as the boiler mounting ?
A. Feed water pump
B. Steam superheater
C. Blow off cock
D. Economiser
✅ The correct answer is option C.
740. Rankine cycle comprises of two isothermal and two __________ processes.
A. Isobaric
B. Polytropic
C. Isentropic
D. None of these
✅ The correct answer is option D.