PLANT DESIGN

Question 1

Hastelloy consists of

Answer 1

Mo and Ni

Question 2

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

Answer 2

condensing fluids

Question 3

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

Answer 3

BGT

Question 4

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

Answer 4

instrument line

Question 5

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

Answer 5

containing suspended solids flow at low velocity

Question 6

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

Answer 6

copper

Question 7

Which of the following is an example of functional depreciation?

Answer 7

obsolescence

Question 8

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

Answer 8

lower cost for the reboiler heat supply

Question 9

Inconel is an alloy of

Answer 9

Fe, Ni, and Cr

Question 10

The joint efficiency for a seamless pipe is

Answer 10

1

Question 11

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

Answer 11

total cost consideration

Question 12

Concrete tank can be used to store

Answer 12

saturated brine

Question 13

Which is correct as regard the design of pressure vessels?

Answer 13

design pressure > operating pressure

Question 14

Biological shield in a nuclear power reactor is made of

Answer 14

concrete

Question 15

The presence of Mn in steel improves its

Answer 15

abrasion resistance and toughness

Question 16

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

Answer 16

1, 2, 3, 4

Question 17

Return on investment is

Answer 17

annual net profit / total capital investment

Question 18

The division of processes into sections are first depicted on the

Answer 18

BFD

Question 19

P&ID

Answer 19

piping and instrumentation diagram

Question 20

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

Answer 20

Shortest centre to centre distance between adjacent tubes

Question 21

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

Answer 21

All of the above

Question 22

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

Answer 22

Teflon

Question 23

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

Answer 23

height of the storage tank

Question 24

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

Answer 24

> 0

Question 25

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

Answer 25

0

Question 26

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

Answer 26

preferably flow inside the tube for its easier internal cleaning

Question 27

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

Answer 27

measured variable

Question 28

Schedule number is an indication of the pipe's

Answer 28

wall thickness

Question 29

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

Answer 29

increases

Question 30

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

Answer 30

D^5

Question 31

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

Answer 31

order-of-magnitude estimate

Question 32

Preliminary design estimate

Answer 32

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

Question 33

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

Answer 33

HAZOP

Question 34

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

Answer 34

distillation

Question 35

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

Answer 35

all expenses = cash expenses – depreciation

Question 36

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

Answer 36

3.81 years

Question 37

The value of a property after depreciation is called

Answer 37

Salvage value

Question 38

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

Answer 38

0.8

Question 39

A cylindrical storage tank can have self-supported conical roof

Answer 39

if its diameter is less than 15 - 20 meters

Question 40

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?

Answer 40

4.7

Question 41

Which of the following is not part of working capital? materials-in-process finished product inventory transportation facilities raw materials inventory

Answer 41

transportation facilities

Question 42

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

Answer 42

Total production cost = direct production cost + plant overhead cost

Question 43

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

Answer 43

direct production cost

Question 44

In a manufacturing plant, break-even point occurs when

Answer 44

total annual product cost = total annual sales

Question 45

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

Answer 45

process design

Question 46

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

Answer 46

safe plant operation