A. Aluminium
B. Tin
C. Lead
D. Both B & C
✅ The correct answer is option D.
Chemical Engineering MCQs
Regeneration of molecular seive requires it to be heated to a temperature of about __________ °C.
A. 80-120
B. 200-300
C. 600-800
D. 1000-1100
✅ The correct answer is option B.
Which of the following rays has the least wavelength?
A. Ultraviolet rays
B. Infrared rays
C. Cosmic rays
D. X-rays
✅ The correct answer is option C.
Diamond does not conduct electricity, because
A. Its structure is very compact
B. No free electrons are present
C. It is of crystalline nature
D. There are only carbon atoms present
✅ The correct answer is option B.
“Internal energy of a gas obeying Vanderwall’s equation of state, (p + a/v²)(V – b) = RT , depends upon its”
A. Pressure & temperature
B. Pressure & specific volume
C. Temperature & specific volume
D. Temperature only
✅ The correct answer is option A.
Disposable patterns are made of
A. Metal
B. Polystyrene
C. Rubber
D. Wood
✅ The correct answer is option B.
Filler metal is not used in the __________ welding.
A. Seam
B. Electric spot
C. Projection
D. All of the above
✅ The correct answer is option D.
The property of material, by which a given amount of energy is absorbed by it without plastic deformation, is called the
A. Resilience
B. Toughness
C. Ductility
D. Impact strength
✅ The correct answer is option A.
Chromium molybdenum steel can not be welded using __________ welding.
A. Thermit
B. Electrical resistance
C. Oxy-acetylene
D. Any of these
✅ The correct answer is option B.
Use of flux during soldering is done to
A. Increase flidity of solder by lowering its melting temperature
B. Prevent oxide formation
C. Wash away surplus solder
D. Full up the joint gap
✅ The correct answer is option B.