Explore topic-wise MCQs in Chemical Engineering.

This section includes 908 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.

101.

The LMTD correction factor (Fт) is defined as the

A. ratio of true temperature difference to the LMTD.
B. ratio of LMTD to the true temperature difference.
C. differenced of true temperature difference and the LMTD.
D. geometric mean of the true temperature difference and the LMTD.
Answer» B. ratio of LMTD to the true temperature difference.
102.

Which of the following does not come under the sales expenses for a product of a chemical plant ?

A. Advertising
B. Warehousing
C. Legal fees
D. Customer service.
Answer» D. Customer service.
103.

Profit is equal to revenue minus

A. book value
B. total cost
C. operating cost
D. none of these
Answer» C. operating cost
104.

The amount of simple interest during 'n' interest period is (where, i = interest rate based on the length of one interest period, p = principal)

A. p.i.n.
B. p(1 + i.n)
C. p(1 + i)n
D. p(1 - i.n)
Answer» B. p(1 + i.n)
105.

A balance sheet for a chemical plant shows its financial condition at any given date. It does not contain the __________ of the plant.

A. current asset
B. current liability
C. long term debt
D. profit
Answer» E.
106.

__________ of depreciation calculation does not take into account the interest on investments.

A. Present worth method
B. Sinking fund method
C. Sum of the years-digits method
D. all (a), (b) and (c)
Answer» D. all (a), (b) and (c)
107.

Annual depreciation costs are constant, when the __________ method of depreciation calculation is used.

A. declining balance
B. straight line
C. sum of the years digit
D. none of these
Answer» C. sum of the years digit
108.

Out of the following, the depreciation calculated by the __________ method is the maximum.

A. diminishing balance
B. straight line
C. sum of the years digit
D. sinking fund
Answer» B. straight line
109.

Which of the following methods of depreciation calculations results in book values greater than those obtained with straight line method ?

A. Multiple straight line method
B. Sinking fund method
C. Declining balance method
D. Sum of the years digit method
Answer» C. Declining balance method
110.

Utilities cost in the operation of chemical process plant comes under the

A. plant overhead cost
B. fixed charges
C. direct production cost
D. general expenses
Answer» D. general expenses
111.

Accumulated sum at the end of 5 years, if Rs. 10000 is invested now at 10% interest per annum on a compound basis is Rs.

A. 15000
B. 16105
C. 18105
D. 12500
Answer» C. 18105
112.

The LMTD correction factor (Fᴛ) is applied in __________ heat exchangers.

A. 1-1 cocurrent
B. double pipe
C. all multipass
D. all (involving liquid/liquid heat transfer)
Answer» D. all (involving liquid/liquid heat transfer)
113.

According to six-tenths-factor rule, if the cost of a given unit at one capacity is known, then the cost of similar unit with '' times the capacity of the first unit is approximately equal to __________ times the cost of the initial unit.

A. n
B. n^0.6
C. n^0.4
D. √n
Answer» C. n^0.4
114.

__________ method for profitability evaluation of a project does not account for investment cost due to land.

A. Net present worth
B. Pay out period
C. Discounted cash flow
D. Rate of return on investment
Answer» C. Discounted cash flow
115.

Purchased cost of equipments for a chemical process plant ranges from __________ percent of the fixed capital investment.

A. 10 to 20
B. 20 to 40
C. 45 to 60
D. 65 to 75
Answer» C. 45 to 60
116.

Steam side heat transfer co-efficient for design consideration under ordinary condition can be assumed to be about __________ kcal/hr.m².°C.

A. 1250
B. 2500
C. 7500
D. 15000
Answer» D. 15000
117.

Effective and nominal interest rates are equal, when the interest is compounded

A. annually
B. fortnightly
C. monthly
D. half-yearly
Answer» B. fortnightly
118.

Depreciation is __________ in profit with time.

A. decrease
B. increase
C. no change
D. none of these
Answer» B. increase
119.

Fixed capital investment of a chemical plant is the total amount of money needed to supply the necessary plant and manufacturing facilities plus the working capital for operation of the facilities. Which of the following components of fixed capital investment requires minimum percentage of it ?

A. Electrical installation cost.
B. Equipment installation cost.
C. Cost for piping.
D. Equipment insulation cost.
Answer» E.
120.

Most chemical plants use an initial working capital amounting to 10-20% of the total capital investment. But this percentage may increase to __________ percent in case of seasonal products manufacturing plant.

A. 30
B. 50
C. 75
D. 95
Answer» C. 75
121.

Optimum number of effects in a multiple effect evaporator is decided by the

A. cost benefit analysis.
B. floor area availability.
C. terminal parameters.
D. evaporation capacity required.
Answer» B. floor area availability.
122.

In common bubble cap distillation column design practice, riser area is approximately equal to (where, Aₐ = Annular passage area, and Sₐ = Slot area)

A. Aₐ = Sₐ
B. 1.2 Aₐ = 1.2 Sₐ
C. Sₐ = 1.5 Aₐ
D. Aₐ = 1.5 Sₐ
Answer» B. 1.2 Aₐ = 1.2 Sₐ
123.

In an ordinary chemical plant, electrical installation cost may be about

A. 10-15% of purchased equipment cost.
B. 3-10% of fixed capital investment.
C. either (a) or (b).
D. neither (a) nor (b).
Answer» D. neither (a) nor (b).
124.

Expenditure on research and development (R & D) is categorised as the __________ , while making an estimate of the total product cost for a chemical plant.

A. overhead cost
B. fixed expenses
C. general expenses
D. direct production cost
Answer» D. direct production cost
125.

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

A. A
B. B
C. C
D. D
Answer» C. C
126.

Gantt chart (or Bar chart) is helpful in

A. efficient utilisation of manpower and machines.
B. preparing production schedule.
C. efficient despatching of products.
D. inventory control.
Answer» C. efficient despatching of products.
127.

Depreciation

A. costs (on annual basis) are constant when the straight line method is used for its determination.
B. is the unavoidable loss in the value of the plant, equipment and materials with lapse in time.
C. does figure in the calculation of income tax liability on cash flows from an investment.
D. all (a), (b) and (c).
Answer» E.
128.

Which of the following relationship is not correct is case of a chemical process plant ?

A. Manufacturing cost = direct product cost + fixed charges + plant overhead costs
B. General expenses = administrative expenses + distribution & marketing expenses
C. Total product cost = manufacturing cost + general expenses
D. Total product cost = direct production cost + plant overhead cost.
Answer» E.
129.

The amount of compounded interest during 'n' interest periods is

A. p[(1+i)ⁿ-1)]
B. p(1 + i)ⁿ
C. p(1 - i)ⁿ
D. p(1 + iⁿ)
Answer» B. p(1 + i)ⁿ
130.

The 'total capital investment' for a chemical process plant comprises of the fixed capital investment and the

A. overhead cost
B. working capital
C. indirect production cost
D. direct production cost
Answer» C. indirect production cost
131.

The economic life of a large chemical process plant as compared to a small chemical plant is

A. only slightly more
B. much more
C. slightly less
D. almost equal
Answer» C. slightly less
132.

In a manufacturing industry, break even point occurs, when the

A. total annual rate of production equals the assigned value.
B. total annual product cost equals the total annual sales.
C. annual profit equals the expected value.
D. annual sales equals the fixed cost.
Answer» C. annual profit equals the expected value.
133.

Which of the following is the cheaptest material of construction for the storage of sodium hydroxide upto a concentration of 75% ?

A. Stainless steel
B. Plain carbon steel
C. Nickel
D. Copper
Answer» C. Nickel
134.

In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hᵢ) vanishes after a Reynold number of

A. 1000
B. 3000
C. 5000
D. 10000
Answer» E.
135.

Gross earning is equal to the total income minus

A. total product cost
B. fixed cost
C. income tax
D. none of these
Answer» B. fixed cost
136.

Nominal size of a pipe is an indication of its __________ diameter.

A. inner
B. outer
C. approximate
D. none of these
Answer» D. none of these
137.

Heat transfer co-efficient, hԍ(Kcal/hr.m² .°C) and mass velocity of air, G (kg/hr.m² ) for air flow parallel to the surface in case of constant drying rate in batch drying is related as hԍ = 0.0176G^0.8. But when the flow of air perpendicular to the surface is encountered, this equation changes to

A. hԍ = 1.004G^0.37
B. 1.004G^0.8
C. hԍ = 0.0176G^0.37
D. 0.0176G^1.37
Answer» B. 1.004G^0.8
138.

In financial accounting of a chemical plant, which of the following relationship is invalid?

A. Assets = equities
B. Assets = liabilities + net worth
C. Total income = costs + profits
D. Assets = capital.
Answer» E.
139.

An investment of Rs. 100 lakhs is to be made for construction of a plant, which will take two years to start production. The annual profit from the operation of the plant is Rs. 20 lakhs. What will be the pay back time ?

A. 5 years
B. 7 years
C. 12 years
D. 10 years
Answer» C. 12 years
140.

A series of equal payments (e.g., deposit or cost) made at equal intervals of time is known as

A. perpetuity
B. capital charge factor
C. annuity
D. future worth
Answer» D. future worth
141.

Equipment installation cost in a chemical process plant ranges from __________ percent of the purchased equipment cost.

A. 10 to 20
B. 35 to 45
C. 55 to 65
D. 70 to 80
Answer» C. 55 to 65
142.

Nominal and effective interest rates are equal, when the interest is compounded

A. quarterly
B. semi-annually
C. annually
D. in no case, they are equal
Answer» D. in no case, they are equal
143.

An investment of Rs. 1000 is carrying an interest of 10% compounded quarterly. The value of the investment at the end of five years will be

A. A
B. B
C. C
D. D
Answer» B. B
144.

Operating profit of a chemical plant is equal to

A. profit before interest and tax i.e., net profit + interest + tax
B. profit after tax plus depreciation
C. net profit + tax
D. profit after tax
Answer» B. profit after tax plus depreciation
145.

Lₑ/D for 90° elbow (medium radius) and 90°square elbow would be respectively around

A. 25 and 60
B. 3 and 5
C. 100 and 250
D. 250 and 600
Answer» B. 3 and 5
146.

Total product cost of a chemical plant does not include the __________ cost.

A. market survey
B. operating labour, supervision and supplies
C. overhead and utilities
D. depreciation, property tax and insur-rance
Answer» B. operating labour, supervision and supplies
147.

Scheduling provides information about the

A. proper utilisation of machines.
B. means to minimise idle time for machines.
C. time of completion of job.
D. time of starting of job and also about how much work should be completed during a particular period.
Answer» E.
148.

Direct costs component of the fixed capital consists of

A. contingencies
B. onsite and offsite costs
C. labour costs
D. raw material costs
Answer» C. labour costs
149.

In a cylinderical vessel subjected to internal pressure, the longitudinal stress σʟ and the circumferential stress, σₙ are related by

A. σₕ = 2 σʟ
B. σₕ = σʟ
C. σₕ = σʟ/2
D. no relation exists
Answer» B. σₕ = σʟ
150.

Which of the following is not a component of the working capital for a chemical process plant ?

A. Product inventory.
B. In-process inventory.
C. Minimum cash reserve.
D. Storage facilities.
Answer» E.