A. Vapour compression
B. Vapour absorption
C. Air refrigeration
D. None of these
✅ The correct answer is option B.
Basic Chemical Engineering MCQs
Moist climate is the most favourable factor in the site selection far a
A. Steel plant
B. Textile factory
C. Petroleum refinery
D. Coke oven battery
✅ The correct answer is option B.
The activity co-efficient of the solute in a dilute solution
A. Decreases with the increase of concentration of the solute
B. Increases with the increase of concentration of the solute
C. Remains constant
D. Is unity at infinite dilution
✅ The correct answer is option C.
Titanium can be easily welded using __________ welding.
A. Submerged arc
B. TIG
C. Shielded metal arc
D. Electroslag
✅ The correct answer is option B.
The joint for soldering is supported by binding wire made of
A. Mild steel
B. Copper
C. Soft iron
D. Stainless steel
✅ The correct answer is option C.
Presence of nickel & chromium in steel does not raise its
A. Elastic limit
B. Machining properties
C. Ductility
D. Resilience
✅ The correct answer is option A.
Water flow in the river during flood can be categorised as the __________ flow.
A. Unsteady uniform
B. Unsteady non-uniform
C. Steady uniform
D. Steady non-uniform
✅ The correct answer is option B.
Limestone is added in the blast furnace (during pig iron manufacture) to
A. Form slag by combining with impurities
B. Supply heat by undergoing exothermic reaction with impurities
C. Reduce the coke consumption
D. Reduce slag viscosity
✅ The correct answer is option A.
L.D. (Linz-Donawitz) converter is used in the production of
A. Copper
B. Steel
C. Zinc
D. Aluminium
✅ The correct answer is option B.
A gas which is collected over water becomes moistened due to water vapor, exerts its own partial pressure at the gas temperature, which is termed as its
A. Aqueous tension
B. Saturated humidity
C. Vapor pressure
D. Absolute humidity
✅ The correct answer is option A.