A. Chromium
B. Vanadium
C. Cobalt
D. Molybdenum
✅ The correct answer is option D.
Basic Chemical Engineering MCQs
Materials having __________ lattice structure are usually the most ductile.
A. Body centred cubic (bcc)
B. Hexagonal close packed (hcp)
C. Face centred cubic (fcc)
D. None of these
✅ The correct answer is option C.
The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is __________ BTU/hr.
A. 100
B. 200
C. 1000
D. 2000
✅ The correct answer is option B.
__________ of air does not increase with increase in temperature.
A. Density
B. Thermal diffusivity
C. Viscosity
D. Thermal conductivity
✅ The correct answer is option A.
During brazing, if the fluxes are entrapped, it results in the
A. Distortion of brazed joints
B. Cracking of joints
C. Presence of gas pockets
D. Corrosion
✅ The correct answer is option D.
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.
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.
The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.
A. 0
B. 100
C. 50
D. None of these
✅ The correct answer is option B.
Production of a hollow product by inflation of a tube or parison is called the __________ process.
A. Blow moulding
B. Calendering
C. Extrusion
D. Injection
✅ The correct answer is option A.
Gantt charts are used for streamlining the
A. Inventory control
B. Production schedule
C. Sales forecasting
D. Quality control
✅ The correct answer is option B.