chemical engineering MCQs – Page 38

Practise multiple-choice questions from chemical engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

chemical engineering Mcqs
741. A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to____________________?
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A. ?(Particle diameter)

B. (Particle diameter)2

C. Particle diameter

D. (Particle diameter)3

742. Mhos scale of hardness, which consists of 10 standard minerals is used for the measurement of _______________ hardness?
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A. Rebound

B. Dynamic

C. Scratch

D. Indentation

743. Which of the following is not a component of working capital ?
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A. Semi-finished products in the process

B. Transportation facilities

C. Raw materials is stock

D. Finished products in stock

744. In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of_________________?
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A. High speed steel

B. High carbon steel

C. Stainless steel

D. Mild steel

745. Coarse grained steels have____________________?
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A. Very high toughness

B. No tendency to distort

C. Low toughness

D. High density

746. If an amount R is paid at the end of every year for n years, then the net present value of the annuity at an interest rate of i is _________________?
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A. R [{(1 + i)n 1}/ i ]

B. R(1 + i)n

C. R/(1 + i)n

D. R [{(1 + i)n 1}/ i (1 + i)n]
747. The total investment in a project is Rs. 10 lakhs and the annual profit is 1.5 lakhs. If the project life is 10 years, then the simple rate of return on investment is__________________?
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A. 15%

B. 1.5%

C. 10%

D. 150%

748. In declining balance method of depreciation calculation, the _____________________?
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A. Value of the asset decreases linearly with time

B. Annual depreciation is the fixed percentage of the property value at the beginning of the

C. ticular year</strong>

D. None of these

E. Annual cost of depreciation is same every year

749. Flare tower used in industry is meant for_____________________?
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A. Cooling of furnace exhaust gases

B. None of these

C. Absorbing the pollutant gases from the furnace exhaust

D. Venting off (after burning) the excess inflammable/toxic gases at high pressure
750. Factory manufacturing cost is the sum of the direct production cost_________________?
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A. Plant overhead cost and administrative expenses

B. And plant overhead cost

C. Fixed charges and plant overhead cost

D. None of these

751. Pick out the wrong statement ?
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A. The ratio of immediately available cash to the total current liabilities is known as the cash

B. io

C. ws the relationship among total income, costs & profit over the time interval

D. Consolidated income statement based on a given time period indicates surplus capital and

E. Gross revenue is that total amount of capital received as a result of the sale of goods or service

F. Net revenue is the total profit remaining after deducting all costs excluding taxes
752. A material being tested for endurance strength is subjected to the _______________ load ?
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A. Dynamic

B. Static & dynamic

C. Completely reversed

D. Impact

753. Construction expenses are roughly _____________ percent of the total direct cost of the plant ?
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A. 50

B. 30

C. 2

D. 10
754. Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is ________________ mm?
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A. 25

B. 30

C. 15

D. 10

755. ____________________ metal is used as a bearing liner material?
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A. Babbitt

B. Gun

C. White

D. Pewter

756. The main charge in blast furnace is usually___________________?
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A. Limestone, sand & iron ore

B. Iron ore & coke

C. Limestone, coke & iron ore

D. Iron ore, coke & air

757. A form of stress corrosion failure termed as season cracking is generally observed in __________________?
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A. Thermosetting polymers

B. Brasses

C. High carbon steels

D. Borosilicate glasses

758. Annual depreciation cost are not constant when, the _____________ method of depreciation calculation is used ?
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A. Sinking fund

B. Straight line

C. Present worth

D. Declining balance
759. In a furnace with heating element temperature at 1700C, the dominant mechanism of heat transfer will be__________________?
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A. Forced convection

B. Radiation

C. Conduction

D. Natural convection

760. Depreciation of machines fails under the indirect expenses head. As per income tax regulations, it is calculated by the __________________ method?
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A. Multiple straight line

B. Sum of the years digit

C. Sinking fund

D. Diminishing balance