A. Chromium
B. Nickel
C. Zinc
D. Aluminium
✅ The correct answer is option B.
Basic Chemical Engineering MCQs
Direct conversion of thermal energy to electrical energy is facilitated by the
A. Fuel cells
B. Photo voltaic cell
C. Magneto hydrodynamic generator
D. None of these
✅ The correct answer is option C.
Overheating of satellites during re-entry to earth is controlled by
A. Thick insulation
B. Ceramic lining
C. Cooling by flow of air over the surface
D. None of these
✅ The correct answer is option C.
Which of the following relationships is correct for relating the three elastic constants of an isotropic elastic material (where, E = Young’s modulus, G = Modulus of rigidity or shear modulus v = Poisson’s ratio)?
A. E = 2G (1 + v)
B. E = G (1 + v)
C. E = G (1 + v)/2
D. E = 2G (1 + 2v)
✅ The correct answer is option A.
The most important consideration in value engineering is the
A. Profit maximisation
B. Customer satisfaction
C. Cost reduction
D. Process improvement
✅ The correct answer is option B.
At 100% relative humidity, the dew point temperature of moist air is
A. Less than the wet bulb temperature
B. More than the wet bulb temperature
C. Equal to the wet bulb temperature
D. Equal to the ambient temperature
✅ The correct answer is option B.
Nusselt number/Biot number varies
A. Inversely with thermal conductivity
B. Directly with heat transfer co-efficient
C. Directly with thermal conductivity
D. Inversely with the dimension of the solid
✅ The correct answer is option A.
The following thermocouple may be used for measuring temperature upto 1873°K.
A. Chromel-alumel
B. Copper-constantan
C. Platinum-platinum rhodium
D. Iron-constatan
✅ The correct answer is option C.
__________ of test specimens is not involved in any hardness testing method.
A. Fracture
B. Indentation
C. Wear
D. Scratch
✅ The correct answer is option A.
Which of the following is not a cupro-nick-el alloy?
A. German silver
B. Monel metal
C. Muntz metal
D. None of these
✅ The correct answer is option C.