2501. Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats
P and Q
P and R
P and S
R and S
✅ The correct answer is option C.
Chemical Engineering
Prepare with the best Chemical Engineering MCQs with answers and detailed explanations for exams and job tests. Our collection covers key topics such as chemical process calculations, thermodynamics, fluid mechanics, heat transfer, mass transfer, reaction engineering, instrumentation, and plant design. These Chemical Engineering multiple-choice questions are ideal for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, PEC exams, GATE, university entry tests, and job interviews. Practice online with updated Chemical Engineering MCQs to strengthen your concepts and improve technical problem-solving skills.
2502. Polymerisation
produces i-octane from cracked gases containing i-butane and butene.
causes olefins to combine with each other.
causes aromatics to combine with each other.
is aimed at producing lubricating oil.
✅ The correct answer is option B.
2503. Naphthenic acid is a/an __________ compound.
sulphur
nitrogen
oxygen
none of these
✅ The correct answer is option C.
2504. Flue gas from the heating chamber of byproduct coke ovens is removed by
Forced draft fan
Induced draft fan
Steam ejector
Natural draft
✅ The correct answer is option D.
2505. Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the
Maximum resistance in the series
Sum of all resistances
Average of all resistances
Minimum resistance presents in the series
✅ The correct answer is option B.
2506. The purpose of providing expansion bellows in the shell of tubular exchanger is to
Increase the heating load
Impart structural strength
Account for the uneven expansion of shell and tube bundles
Facilitate increase of shell length, if needed
✅ The correct answer is option C.
2507. Visbreaking
uses natural gas as feed.
is carried out at atmospheric pressure.
produces fuel oil of lower viscosity.
produces gasoline only.
✅ The correct answer is option C.
2508. Liquefied Petroleum Gas (LPG) in domestic use cylinders is in the liquid form. The density of LPG in liquid form is about __________ of that of water (i.e. 1 gm/c.c).
one fourth
one third
half
one eighth
✅ The correct answer is option C.
2509. Solvent used in the deasphalting process is
furfurol
phenol
propane
hexane
✅ The correct answer is option C.
2510. 200 kg of solids (on dry basis) is subjected to a drying process for a period of 5000 seconds. The drying occurs in the constant rate period with the drying rate as, Nc = 0.5 x 10⁻³ kg/m².s. The initial moisture content of the solid is 0.2 kg moisture/kg dry solid. The interfacial area available for drying is 4 m²/1000 kg of dry solid. The moisture content at the end of the drying period is (in kg moisture/kg dry solid)
0.5
0.05
0.1
0.15
✅ The correct answer is option C.