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CORREL DAY 2 > PLANT DESIGN > Flashcards

PLANT DESIGN Flashcards

1
Q

Hastelloy consists of

A

Mo and Ni

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2
Q

Which of the following fluids should be made to flow in the shell-side of a shell-and-tube heat exchanger?

A

condensing fluids

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3
Q

Based on TEMA Standards, a shell-and-tube heat exchanger with bonnet-type front end, split-flow-type body, and pull-through floating head rear, is of the type

A

BGT

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4
Q

This symbol, ——– , in detailed equipment flow sheet refers to

A

instrument line

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5
Q

Fouling factor must be included in the calculation of overall heat transfer coefficient when the liquid

A

containing suspended solids flow at low velocity

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6
Q

Which of the following is the best tube material from thermal conductivity point of view alone?

A

copper

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7
Q

Which of the following is an example of functional depreciation?

A

obsolescence

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8
Q

In case of a continuous distillation column, increase in reflux ratio may result in all of the following except:

A

lower cost for the reboiler heat supply

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9
Q

Inconel is an alloy of

A

Fe, Ni, and Cr

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10
Q

The joint efficiency for a seamless pipe is

A

1

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11
Q

The optimum economic pipe diameter for fluid flow is determined by the

A

total cost consideration

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12
Q

Concrete tank can be used to store

A

saturated brine

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13
Q

Which is correct as regard the design of pressure vessels?

A

design pressure > operating pressure

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14
Q

Biological shield in a nuclear power reactor is made of

A

concrete

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15
Q

The presence of Mn in steel improves its

A

abrasion resistance and toughness

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16
Q

A market survey is done to see how the project fits into the company strategy. Which of the following are included in the market survey?
1. market trends
2. price history
3. existing technology
4. competitors

A

1, 2, 3, 4

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17
Q

Return on investment is

A

annual net profit / total capital investment

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18
Q

The division of processes into sections are first depicted on the

A

BFD

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19
Q

P&ID

A

piping and instrumentation diagram

20
Q

In a shell and tube heat exchanger, the ‘tube pitch’ is defined as the

A

Shortest centre to centre distance between adjacent tubes

21
Q

In case of a continuous distillation column, increase in reflux ratio may result in the

Lower fixed charges for the column
Greater cost for the reboiler heat supply
Greater cost for the condenser coolant
All of the above

A

All of the above

22
Q

Hydrochloric acid solution (10% and 95%) and sulfuric acid can be best stored in a vessel lined with

A

Teflon

23
Q

Which of the following has the least effect on determining the necessary wall thickness of a metallic storage vessel?

A

height of the storage tank

24
Q

A design problem is one whose number of degrees of freedom is

A

> 0

25
Q

For any system, what is the minimum number of degrees of freedom?

A

0

26
Q

In the design of the shell-and-tube systems, the fluids that is highly corrosive and has fouling tendency should

A

preferably flow inside the tube for its easier internal cleaning

27
Q

The first letter in the tag description of controller near a device indicates the

A

measured variable

28
Q

Schedule number is an indication of the pipe’s

A

wall thickness

29
Q

With increase in number of shell passes, the value of the fudge factor (F)

A

increases

30
Q

The power requirement in agitation is proportional to ___, where D is the diameter of the agitator

A

D^5

31
Q

The least accurate estimate of a plant design project cost is the

A

order-of-magnitude estimate

32
Q

Preliminary design estimate

A

requires more accurate equipment sizing and layout of equipment, with piping and
instrumentation

33
Q

A qualitative technique based on guide words to help provoke thoughts about the way deviations from the intended operating conditions can lead to hazardous situations or operability problems

A

HAZOP

34
Q

According to heuristics for process equipment design, the most economical method of separating
liquids is

A

distillation

35
Q

Which of the following is incorrect?
net profits = revenue - all expenses - income tax
all expenses = cash expenses – depreciation
income tax = (revenue - all expenses)(tax rate)
cash flow = net profits + depreciation

A

all expenses = cash expenses – depreciation

36
Q

What is the payback period corresponding to an ROI of 22.5%, assuming a 10-year evaluation period?

A

3.81 years

37
Q

The value of a property after depreciation is called

A

Salvage value

38
Q

In the design of paddle agitator the paddle diameter to tank diameter ratio is normally taken as

A

0.8

39
Q

A cylindrical storage tank can have self-supported conical roof

A

if its diameter is less than 15 - 20 meters

40
Q

In the factorial method of cost estimation, of the the fixed capital cost project, Cr, is given as a function of the total purchase equipment cost, Cc, by the equation: Cf=LfCc, where Lf is the Lang factor, which depends on the type of process. What is the value of Lf for predominantly fluids processing plant?

A

4.7

41
Q

Which of the following is not part of working capital?

materials-in-process
finished product inventory
transportation facilities
raw materials inventory

A

transportation facilities

42
Q

Which of the following is incorrect, in case of a chemical process plant?

Total production cost = manufacturing costs + general expenses
Total production cost = direct production cost + plant overhead cost
Manufacturing cost = direct production cost + fixed cost + plant overhead cost
General expenses = administrative expenses + distribution and marketing expenses

A

Total production cost = direct production cost + plant overhead cost

43
Q

The utilities cost in the operation of chemical processing plant are considered

A

direct production cost

44
Q

In a manufacturing plant, break-even point occurs when

A

total annual product cost = total annual sales

45
Q

Which of the following is at the core or center of the layers of safety protection in chemical plants?

A

process design

46
Q

Which of the following ranks highest in the hierarchy of the objectives of automatic process control?

A

safe plant operation

CORREL DAY 2 (7 decks)

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