A. Non-crystalline organic polymeric
B. Ceramic
C. All crystalline
D. All of the above
✅ The correct answer is option A.
Basic Chemical Engineering MCQs
Routing in production, planning & control is concerned with the
A. Sequence of operation to be performed
B. Progress of work performed
C. Authorisation of work to be performed
D. Balancing of load on machines
✅ The correct answer is option A.
For the irreversible reaction, Ca+ 2C = Ca C₂ , Δ H°298 = – 60000 J . mole⁻¹ . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be
A. 30000 J
B. 60000 J
C. 90000 J
D. 240000 J
✅ The correct answer is option C.
Transition from laminar to turbulent zone in free convection heat transfer is governed by the critical value of
A. Grashoff number
B. Grashoff number & Reynolds number
C. Reynolds number
D. Grashoff number & Prandtl number
✅ The correct answer is option D.
Steel is welded using the __________ flame.
A. Carburising
B. Neutral
C. Oxidising
D. All of the above
✅ The correct answer is option B.
The most important material handling system in an integrated steel plant is the
A. Belt conveyor
B. Diesel locomotive
C. Truck
D. Overhead hoists & cranes
✅ The correct answer is option B.
Ester is formed, when an alcohol reacts with
A. Carboxylic acid
B. Aldehyde
C. Ketone
D. Ether
✅ The correct answer is option A.
The stress at which extension of the material takes place more rapidly as compared to the increase in load is termed as the __________ point of the material.
A. Elastic
B. Ultimate
C. Yielding
D. Breaking
✅ The correct answer is option C.
Nickel and __________ are the alloying element added in steel to increase its toughness.
A. Molybdenum
B. Chromium
C. Vanadium
D. Silicon
✅ The correct answer is option D.
Heat release during phase change is observed in case of a/an
A. Boiler
B. Condenser
C. Evaporator
D. All of the above
✅ The correct answer is option B.