A. Calcium
B. Nitrogen
C. Phosphorous
D. Hydrogen
✅ The correct answer is option B.
Basic Chemical Engineering MCQs
Which of the following is a commonly used manometric liquid for low pressure range?
A. Ethyl alcohol
B. Carbon tetrachloride
C. Glycerol
D. Ethylene glycol
✅ The correct answer is option B.
Large diameter shafts are manufactured by
A. Hot rolling
B. Cold drawing
C. Casting and turning to size
D. Forging and turning to size
✅ The correct answer is option D.
Filler metal is used in __________ welding.
A. Braze
B. Electric spot
C. Projection
D. Seam
✅ The correct answer is option A.
In fluid flow, and heat and mass transfer, one encounters (i) kinematic velocity (μ), (ii) molecular diffusivity (θ) and thermal diffusivity (α). The units of these quantities are.
A. μ , α and θ all have units of m/s
B. μ , α and θ all have units of m²/s
C. α and θ have units of m²/s, while μ has unit of m/s
D. α and θ have units of m/s, while μ has unit of m²/s
✅ The correct answer is option C.
The ultimate strength in tension for steel is __________ times the ultimate strength in shear.
A. 0.5
B. 0.9
C. 1.5
D. 2.5
✅ The correct answer is option C.
Out of the following, the most melleable material is
A. Copper
B. Aluminium
C. Wrought iron
D. Lead
✅ The correct answer is option D.
Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
A. Flanged iron
B. Collar
C. Flexible
D. Expansion
✅ The correct answer is option B.
With increase in temperature, the electrical conductivity of a __________ decreases.
A. Semi-conductor
B. Metal or alloy
C. Dielectric
D. None of these
✅ The correct answer is option A.
Which of the following is categorised as the plastic welding?
A. Gas welding
B. Electric arc welding
C. Forge welding
D. None of these
✅ The correct answer is option C.