CHAPTER 18

Question 1

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

A.
Precipitate out of solution

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

C.
Cause foaming in the boiler

D.
Cause corrosion in the boiler

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

Answer 1

A.
Precipitate out of solution

Question 2

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.
0 to 15

C.
121 to 180

D.
61 to 120

E.
Over 181

Answer 2

D.
61 to 120

Question 3

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

A.
The sample being compared to a known standard colour

B.
The sample turning a blue colour

C.
A colour change

D.
The sample turning a pink colour

E.
A change in a meter reading

Answer 3

C.
A colour change

Question 4

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

A.
61 to 120

B.
15 to 60

C.
121 to 180

D.
0 to 15

E.
Over 181

Answer 4

B.
15 to 60

Question 5

A meter used during a water test, which will measure the water’s ability to conduct an electric current, is the:
Select one:

A.
Hardness meter

B.
pH meter

C.
Condensate meter

D.
Color comparator

E.
TDS meter

Answer 5

E.
TDS meter

Question 6

Most water testing reagents have:
Select one:

A.
A blue color

B.
An expiry date

C.
A very strong odour which is harmful

D.
A red color

E.
A small scoop for measuring purposes

Answer 6

B.
An expiry date

Question 7

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

A.
121 to 180

B.
15 to 60

C.
61 to 120

D.
0 to 15

E.
Over 181

Answer 7

E.
Over 181

Question 8

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

A.
Not exposed to water contamination

B.
Allowed to cool slowly

C.
Sealed against spillage

D.
Protected from cooling to quickly

E.
Not exposed to the atmosphere

Answer 8

E.
Not exposed to the atmosphere

Question 9

The amount of boiler blowdown is based on the _____ reading obtained by testing a sample of boiler water.
Select one:

A.
pH

B.
Alkalinity

C.
Hardness

D.
TDS

E.
Conductivity

Answer 9

D.
TDS

Question 10

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

A.
121 to 180

B.
0 to 15

C.
61 to 120

D.
15 to 60

E.
Over 181

Answer 10

A.
121 to 180

Question 11

An indicator is a solution that will change colour as the chemical properties of the _____ change.
Select one:

A.
Condensate

B.
Oil

C.
Steam

D.
Water

E.
Air

Answer 11

D.
Water

Question 12

A high hardness test is normally done on a water sample from the:
Select one:

A.
Boiler

B.
Raw or city water

C.
Softener outlet

D.
Deaerator

E.
Blowdown line

Answer 12

B.
Raw or city water

Question 12

The pH test on boiler water is conducted using the _____ method.
Select one:

A.
Titration

B.
Tensile

C.
Penetration

D.
Meter

E.
Comparison

Answer 12

D.
Meter

Question 13

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

A.
Continuous blowdown

B.
Water supply

C.
Feedwater

D.
Main steam

E.
Boiler intermittent blowdown

Answer 13

A.
Continuous blowdown

Question 14

A reagent is a substance which, on account of its known chemical properties, is employed to produce specific reactions in combination with the _____ of the water sample.
Select one:

A.
Particular constituents

B.
Density

C.
Time

D.
Oxygen

E.
Specific temperature

Answer 14

A.
Particular constituents

Question 15

Organics if allowed to enter the boiler will:
Select one:

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

B.
Cause foaming in the boiler

C.
Precipitate out of solution

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

E.
Cause corrosion in the boiler

Answer 15

B.
Cause foaming in the boiler

Question 16

When using a meter to conduct a pH water test, the meter used would:
Select one:

A.
Basically measure amperage

B.
Be, in effect, a voltmeter

C.
Require a long warm-up period

D.
Measure the wattage used

E.
Have to be separately grounded

Answer 16

B.
Be, in effect, a voltmeter

Question 17

Suspended solids if allowed to enter the boiler will:
Select one:

A.
Cause corrosion in the boiler

B.
Precipitate out of solution

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

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

E.
Cause foaming in the boiler

Answer 17

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

Question 18

A low hardness test normally done on a water sample from the:
Select one:

A.
Blowdown line

B.
Softener outlet

C.
Raw or city water

D.
Deaerator

E.
Boiler

Answer 18

B.
Softener outlet

Question 18

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

A.
Precipitate out of solution

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

C.
Cause foaming in the boiler

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

E.
Cause corrosion in the boiler

Answer 18

E.
Cause corrosion in the boiler

Question 19

The phosphate test on boiler water is conducted using the _____ method.
Select one:

A.
Titration

B.
Tensile

C.
Comparison

D.
Penetration

E.
Meter

Answer 19

E.
Meter

Question 20

A meter used during a water test, which will measure the water’s ability to conduct an electric current, is the:
Select one:

A.
TDS meter

B.
Hardness meter

C.
Color comparator

D.
Condensate meter

E.
pH meter

Answer 20

A.
TDS meter

Question 21

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

A.
M Alkalinity test

B.
P Alkalinity test

C.
pH test

D.
Hardness test

E.
Sulphite test

Answer 21

C.
pH test