A. Air cycle
B. Carnot cycle
C. Ordinary vapor compression cycle
D. Vapor compression with a reversible expansion engine
✅ The correct answer is option B.
Chemical Engineering MCQs
Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)?
A. Air cycle
B. Carnot cycle
C. Ordinary vapour compression cycle
D. Vapour compression with a reversible expansion engine
✅ The correct answer is option A.
A/an __________ is used for changing the direction of a pipeline.
elbow
union
flange
disc compensator
✅ The correct answer is option A.
Vertical vessels are not supported by
brackets
skirts
columns
saddles
✅ The correct answer is option D.
Floating head heat exchangers are used for the
heat transfer between corrosive fluids.
cases where temperature difference between the shell and the tubes is more (>50°C).
co-current heat transfer systems.
counter-current heat transfer systems.
✅ The correct answer is option B.
Which of the following lengths of heat exchanger tubes are normally not used in practice ?
2.5 metres
6 metres
10 metres
0.5 metre
✅ The correct answer is option C.
The slope of the feed line in distillation opeartion is given by (where, q = fraction of the feed stream that is liquid.)
-q
-q/(1-q)
-q/(q-1)
none of these
✅ The correct answer is option B.
The buckling tendency of compression members is always in the direction of the
least radius of gyration.
axis of the load.
perpendicular to the axis of the load.
none of these.
✅ The correct answer is option A.
Two iron pipes of the same nominal diameter but different schedule numbers will have the same
inside diameter
outside diameter
wall thickness
none of these
✅ The correct answer is option A.
Baffle spacing is generally __________ the I.D. of the shell.
more than
not greater than
not less than one fifth of
both (b) and (c)
✅ The correct answer is option D.