A. Strain energy
B. Surface energy
C. Volume energy
D. Stacking fault energy
✅ The correct answer is option B.
Chemical Engineering MCQs
__________ has the highest melting point out of the following.
A. Tungsten
B. Zirconium
C. Molybdenum
D. Tantalum
✅ The correct answer is option A.
__________ is not used as the control rod material in a nuclear reactor.
A. Cobalt
B. Hafnium
C. Cadmium
D. Boron
✅ The correct answer is option A.
Needles are produced by
A. Forging
B. Swaging
C. Extrusion
D. Machining
✅ The correct answer is option B.
Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?
A. Cresylic acid
B. Xanthaies
C. Pine oil
D. All of the above
✅ The correct answer is option B.
Fire refining process is employed in case of
A. Tin
B. Copper
C. Zinc
D. Aluminium
✅ The correct answer is option B.
Stellite is a __________ material.
A. Ferrous
B. Ceramic
C. Cemented carbide
D. Non ferrous cast alloy cutting tool
✅ The correct answer is option D.
With decrease in the grain size of a material, its creep resistance
A. Increases
B. Decreases
C. Remains constant
D. Either A or B ; depends on the material
✅ The correct answer is option C.
Multistage compression is necessary for high efficiency,
A. If the ratio of the delivery pressure to the intake pressure exceeds 5:1
B. When large amount of gas is to be compressed
C. When the delivered gas is desired at very high velocity
D. None of these
✅ The correct answer is option A.
The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation as 43723 J/gm mole, its fugacity at 300 K would be
A. 3171Pa
B. 3567Pa
C. 1.01 x 10⁵Pa
D. 5000Pa
✅ The correct answer is option B.