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.Management Sciences
Category: Chemical Engineering Basics
Cold heading or upsetting is categorised as the ________________ process ?
A. Extrusion
B. Bending
C. Rolling
D. Forging
Out of the following, the joint produced by ______________ has the lowest strength?
A. Soldering
B. Welding
C. Brazing
D. Riveting
Carbon is present in the form of _______________________ in grey cast iron ?
A. Spheroids
B. Nodular aggregates of graphite
C. Flakes
D. Cementite
Which of the following has the highest value of refractive index ?
A. Brine (sea water)
B. Diamond
C. Distilled water
D. Glass
Pick out the wrong statement ?
A. Molecules with symmetrical arrangements (e.g. CH4 or CCl4) are non-polar
B. Generally, non-polar compounds are chemically inactive, conduct electricity poorly and do
not ionise
C. Most of the hydrocarbons are non-polar
D. None of these
Thermal efficiency of an internal combustion engine is around ______________ percent?
A. 8
B. 35
C. 65
D. 80
Cementite is in the lamellar form in the _____________________ phase of steel ?
A. Martenistic
B. Bainitic
C. Pearlitic
D. Ferritic
Coarse grained steels have____________________?
A. Low toughness
B. No tendency to distort
C. High density
D. Very high toughness
Fire refining process is employed in case of___________________?
A. Tin
B. Copper
C. Zinc
D. Aluminium
The cathode in an electrochemical cell always carries____________________?
A. Negative charge
B. Positive charge
C. Zero charge
D. Positive or negative charge depending upon the nature of the cell
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