anti-knocking
anti-icing
anti-gum forming
dewaxing
✅ The correct answer is option B.
Engineering
Boost your preparation with the latest Engineering MCQs with answers and explanations. Our collection covers civil engineering, electrical engineering, mechanical engineering, electronics, software engineering, and other core subjects. These multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, PEC exams, university entry tests, and job interviews. Practice online with updated Engineering MCQs to strengthen concepts, improve technical knowledge, and perform better in exams and recruitment tests.
2362. Mercaptans are added to liquefied petroleum gas (LPG) to
reduce its cost.
narrow down its explosion limit.
assist in checking its leakage from cylinder.
increase its calorific value.
✅ The correct answer is option C.
2363. Thermofer catalytic cracking process is a __________ process.
fixed bed
moving bed
fluidised bed
non-catalytic
✅ The correct answer is option D.
2364. Utilities cost in the operation of chemical process plant comes under the
plant overhead cost
fixed charges
direct production cost
general expenses
✅ The correct answer is option C.
2365. With increase in the molecular weight of aromatic present in kerosene, its smoking tendency
increases
decreases
remains same
is unpredictable
✅ The correct answer is option A.
2366. The conductivity of crude oil-water mixture depends on the
pH value
water percentage
temperature
all (a), (b) and (c)
✅ The correct answer is option D.
2367. Main boring diameter for petroleum well is 20-30 cms in diameter, while the depth of the oil well may be about __________ kms.
0.1 to 0.5
1.5 to 4.5
7.5 to 12.5
15-20
✅ The correct answer is option B.
2368. Gross earning is equal to the total income minus
total product cost
fixed cost
income tax
none of these
✅ The correct answer is option A.
2369. Annual depreciation cost are not constant when, the __________ method of depreciation calculation is used.
straight line
sinking fund
present worth
declining balance.
✅ The correct answer is option D.
2370. Which one is preferred for aircraft engine ?
High viscosity index lube oil.
Low viscosity index lube oil.
High freezing point aviation fuel.
None of these.
✅ The correct answer is option A.