Book 3: Unit 7 - Review: Chapter 17 - 18

Question 1

A water test which involves the use of an electronic meter is the:
Select one:

A. P Alkalinity test

B. Sulphite test

C. Hardness test

D. M Alkalinity test

E. pH test

Answer 1

E. pH test

Question 2

In order to prevent the contamination of a potable water supply the method of providing a physical separation between the free flowing discharge end of a potable water pipe and an open or non-pressure receiving vessel is the:
Select one:

A. Pressure vacuum breaker

B. Reduced pressure principal device

C. Air gap

D. Double check valve

E. Atmospheric vacuum breaker

Answer 2

C. Air gap

Question 3

The amount of chemicals fed to a boiler is dependent upon the:
Select one:

A. Amount of water in the boiler

B. Type of boiler

C. Age of the boiler

D. Size of the boiler

E. Amount of make-up required during the next 24 hours

Answer 3

E. Amount of make-up required during the next 24 hours

Question 4

Calcium sulphate in the boiler feedwater produces:
Select one:

A. Temporary hardness, low solubility

B. Permanent hardness, high solubility

C. Temporary hardness, high solubility

D. Temporary hardness and permanent hardness

E. Permanent hardness, low solubility

Answer 4

E. Permanent hardness, low solubility

Question 5

The “radical” in the boiler feedwater that indicates “permanent hardness” is the:
Select one:

A. Bicarbonate

B. Resin

C. Sulphate

D. Zeolite

E. Polymer

Answer 5

C. Sulphate

Question 6

The “radical” in the boiler feedwater that indicates “temporary hardness” is the:
Select one:

A. Sulphate

B. Resin

C. Polymer

D. Zeolite

E. Bicarbonate

Answer 6

E. Bicarbonate

Question 7

The amount of chemicals fed to a boiler is dependent upon the:
Select one:

A. Type of boiler

B. Size of the boiler

C. Amount of steam produced over the next 24 hours

D. Amount of water in the boiler

E. Age of the boiler

Answer 7

C. Amount of steam produced over the next 24 hours

Question 8

Shot feeding involves the injection of boiler water treatment chemicals over a:
Select one:

A. Relatively long period of time

B. Twelve hour period

C. Relatively short period of time

D. Eight hour period

E. Twenty-four hour period

Answer 8

C. Relatively short period of time

Question 9

Once the boiler water sample container is completely filled it is capped so that the sample is:
Select one:

A. Not exposed to the atmosphere

B. Sealed against spillage

C. Protected from cooling to quickly

D. Not exposed to water contamination

E. Allowed to cool slowly

Answer 9

A. Not exposed to the atmosphere

Question 10

Dissolved gases if allowed to enter the boiler will:
Select one:

A. Cause foaming in the boiler

B. Cause corrosion in the boiler

C. Settle in lower areas interfering with proper heat transfer and circulation

D. End up somewhere such as heat exchanger surfaces or turbine blading

E. Precipitate out of solution

Answer 10

B. Cause corrosion in the boiler

Question 11

A plunger pump is a _____ pump.
Select one:

A. Gear

B. Vane

C. Reciprocating

D. Lobe

E. Centrifugal

Answer 11

C. Reciprocating

Question 12

An example of hard water would have a range of hardness to be expected in ppm of:
Select one:

A. 61 to 120

B. Over 181

C. 15 to 60

D. 121 to 180

E. 0 to 15

Answer 12

D. 121 to 180

Question 13

Magnesium sulphate in the boiler feedwater produces:
Select one:

A. Temporary hardness, high solubility

B. Permanent hardness, high solubility

C. Temporary hardness and permanent hardness

D. Temporary hardness, low solubility

E. Permanent hardness, low solubility

Answer 13

E. Permanent hardness, low solubility

Question 14

The backwash cycle of a, sodium zeolite softener regeneration will:
Select one:

A. Flush out excess zeolite

B. Allow the regenerant to exchange with the “elemental” impurity

C. Flush out excess regenerant

D. Follow the rinse cycle of the regeneration

E. Loosen or separate and flush the bed of trapped suspended matter

Answer 14

E. Loosen or separate and flush the bed of trapped suspended matter

Question 15

An example of medium hard water would have a range of hardness to be expected in ppm of:
Select one:

A. 15 to 60

B. 121 to 180

C. 0 to 15

D. 61 to 120

E. Over 181

Answer 15

D. 61 to 120

Question 16

The boiler water sample source is often a branch line taken off of the boiler _____ line.
Select one:

A. Continuous blowdown

B. Main steam

C. Water supply

D. Boiler intermittent blowdown

E. Feedwater

Answer 16

A. Continuous blowdown

Question 17

The adverse conditions that can occur within the boiler are caused by all of the following except:
Select one:

A. Organics

B. Suspended gases

C. Dissolved gases

D. Suspended solids

E. Dissolved solids

Answer 17

B. Suspended gases

Question 18

When doing a titration method of any boiler water test, the end point of the test is indicated by:
Select one:

A. A change in a meter reading

B. The sample turning a blue colour

C. The sample turning a pink colour

D. The sample being compared to a known standard colour

E. A colour change

Answer 18

E. A colour change

Question 19

The modes of operation of the sodium zeolite water softener include all of the following except:
Select one:

A. Rinse

B. Flush

C. Backwash

D. Exchange

E. Injection

Answer 19

B. Flush

Question 20

An example of soft water would have a range of hardness to be expected in ppm of:
Select one:

A. 15 to 60

B. 0 to 15

C. 61 to 120

D. Over 181

E. 121 to 180

Answer 20

A. 15 to 60