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Worksheets

10

Total questions: 31

Worksheet time: 16mins

Name
Class
Date
1.

The AVT unit consists of:

a)

one section;

b)

two sections;

c)

three sections;

d)

four sections;

e)

five sections.

2.

The feedstock for the catalytic reforming unit is:

a)

gasoline fractions;

b)

kerosene fractions;

c)

diesel fractions;

d)

fuel oil;

e)

liquefied petroleum gas.

3.

Hydraulic machines that convert mechanical energy into energy of moving liquid are called:

a)

compressors;

b)

pumps;

c)

separators;

d)

reactors;

e)

turbines.

4.

The compression ratio in compressor machines is:

a)

Ratio of inlet pressure p1 to outlet pressure p2;

b)

Ratio of outlet pressure p2 to inlet pressure p1;

c)

Difference between inlet pressure p1 and outlet pressure p2;

d)

Difference between outlet pressure p2 and inlet pressure p1;

e)

Sum of p1 and p2.

5.

Smoke is a system consisting of:

a)

two mutually soluble liquids;

b)

gas and dispersed solid particles;

c)

liquid with suspended solid particles;

d)

two mutually insoluble liquids;

e)

gas and vapor.

6.

The driving force of heat exchange is:

a)

difference in concentration;

b)

temperature difference;

c)

not dependent on temperature difference;

d)

choice of heat exchanger design;

e)

pressure difference.

7.

The bottom product of a distillation column is:

a)

high-boiling component;

b)

low-boiling component;

c)

heat carrier;

d)

both low- and high-boiling components;

e)

inert gases.

8.

A set of scheduled maintenance works to ensure normal equipment operation until the next scheduled repair is called:

a)

capital repair;

b)

current repair;

c)

emergency repair;

d)

medium repair;

e)

preventive inspection.

9.

Tray repair in a distillation column is carried out:

a)

without dismantling;

b)

with mandatory dismantling;

c)

in any way;

d)

dismantling only in winter;

e)

only with replacement.

10.

A pipeline can be put into operation only after:

a)

external inspection;

b)

internal inspection;

c)

technical certification;

d)

both external and internal inspection;

e)

pressure test.

11.

Name the paraffin hydrocarbons:

a)

propane;

b)

cyclobutane;

c)

benzene;

d)

ethylene;

e)

acetylene.

12.

Identify the quality parameter not regulated in gasoline:

a)

cetane number;

b)

fractional composition;

c)

sulfur content;

d)

octane number;

e)

density.

13.

Name the substance that breaks emulsions:

a)

emulsifier;

b)

demulsifier;

c)

dehydrator;

d)

electro-dehydrator;

e)

solvent.

14.

Light oil products in the AVT unit are distilled at:

a)

atmospheric pressure;

b)

elevated pressure;

c)

vacuum;

d)

any pressure;

e)

critical pressure.

15.

What is the octane number of gasoline from catalytic reforming?

a)

50;

b)

60;

c)

90;

d)

80;

e)

95.

16.

A centrifugal pump with a horizontally placed shaft is called:

a)

horizontal;

b)

vertical;

c)

inclined;

d)

perpendicular;

e)

axial.

17.

Machines for compressing and moving gases are called:

a)

compressors;

b)

pumps;

c)

separators;

d)

reactors;

e)

fans.

18.

Foam is a system consisting of:

a)

two mutually soluble liquids;

b)

liquid and gas bubbles;

c)

liquid with suspended solids;

d)

two mutually insoluble liquids;

e)

gas and vapor.

19.

Heat carrier saving is achieved in:

a)

parallel flow;

b)

counter flow;

c)

cross flow;

d)

independent of flow direction;

e)

spiral flow.

20.

A simple column separates into:

a)

three components;

b)

four components;

c)

two components;

d)

six components;

e)

one component.

21.

Scheduled maintenance involving complete dismantling and replacement of all worn parts is called:

a)

capital repair;

b)

current repair;

c)

emergency repair;

d)

medium repair;

e)

overhaul.

22.

After repair of the distillation column, tray installation is done:

a)

from top to bottom;

b)

from bottom to top;

c)

simultaneously from top and bottom;

d)

every other tray;

e)

diagonally.

23.

Test pressure should exceed working pressure by:

a)

1.5–2 times;

b)

3.5–4 times;

c)

5.5–6 times;

d)

8–10 times;

e)

10–12 times.

24.

Name aromatic hydrocarbons:

a)

propane;

b)

cyclobutane;

c)

benzene;

d)

octane;

e)

butane.

25.

The octane number of gasoline increases with the addition of:

a)

normal paraffin hydrocarbons;

b)

olefin hydrocarbons;

c)

aromatic hydrocarbons;

d)

hydrogen;

e)

water.

26.

What is the first process unit crude oil enters at the refinery?

a)

AVT;

b)

stabilization;

c)

ELOU;

d)

catalytic cracking;

e)

hydrotreater.

27.

Heavy petroleum products in the AVT unit are distilled at:

a)

atmospheric pressure;

b)

elevated pressure;

c)

vacuum;

d)

any pressure;

e)

supercritical pressure.

28.

The greater the volumetric feed rate in catalytic reforming, the conversion depth is:

a)

higher;

b)

lower;

c)

unchanged;

d)

doubled;

e)

stopped.

29.

If two impellers are mounted on the shaft of a centrifugal pump, the pump is called:

a)

multistage;

b)

three-stage;

c)

two-stage;

d)

single-stage;

e)

axial-flow.

30.

Compressor machines are used to move:

a)

liquids;

b)

gases;

c)

emulsions;

d)

smoke;

e)

solids.

31.

Suspension is a system consisting of:

a)

two mutually soluble liquids;

b)

liquid and gas bubbles;

c)

liquid with suspended solids;

d)

two mutually insoluble liquids;

e)

gas in solid medium.

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