Book 3 Chapter 18: Monitoring & Testing

Question 1

When doing a titration method of any water test, the end point of the test is indicated by:
A) The sample turning a blue colour
B) A colour change
C) A change in a meter reading
D) The sample being compared to a known standard colour

Answer 1

B) A colour change

Question 2

A meter used during a water test, which will measure the water’s ability to conduct an electric current, is the:
A) TDS meter
B) Hardness meter
C) pH meter
D) Condensate meter

Answer 2

A) TDS meter

Question 3

When using a meter to conduct a pH water test, the meter used would:
A) Basically measure amperage
B) Be, in effect, a voltmeter
C) Require a long warm up period
D) Have to be separately grounded

Answer 3

B) Be, in effect, a voltmeter

Question 4

The colorimetric or “comparator” method of testing involves:
A) The use of a meter
B) No known standards
C) The sample changing colour
D) Comparing the sample colour to a known colour

Answer 4

A) The use of a meter

Question 5

A water test which involves the use of an electronic meter is the:
A) Hardness test
B) Excess sulfite test
C) pH test
D) P Alkalinity test

Answer 5

C) pH test

Question 6

A substance used during a water test and which serves as a measuring tool is:
A) A reagent
B) An indicator
C) An electronic device
D) The water sample

Answer 6

A) A reagent

Question 7

Most water testing reagents have:
A) A red colour
B) A very strong odour which is harmful
C) A small scoop for measuring purposes
D) An expiry date

Answer 7

D) An expiry date

Question 8

To prevent scale formation, inject:
A) Phenolphthalein
B) Phosphates
C) Amines
D) Molybdate
E) Sodium chloride

Answer 8

B) Phosphates

Question 9

Organic contaminants in boiler water cause:
A) Water hammer
B) Corrosion
C) Shrinkage
D) Foaming
E) Scaling

Answer 9

D) Foaming

Question 10

Total dissolved solid concentration is generally determined by measuring:
A) pH
B) Acidity
C) Radicals
D) Conductivity
E) Alkalinity

Answer 10

D) Conductivity

Question 11

A conductivity meter is used to measure the boiler water:
A) pH
B) Alkalinity
C) Turbidity
D) Hardness
E) TDS

Answer 11

E) TDS

Question 12

Hardness is a measure of relative concentration of:
A) Dissolved oxygen
B) Calcium carbonate
C) Organics
D) Sludge
E) Sodium

Answer 12

B) Calcium carbonate

Question 13

Dissolved gases in boiler water cause:
A) Corrosion
B) Shrinkage
C) Scaling
D) Reduced chemical use
E) Enhanced heat transfer

Answer 13

A) Corrosion

Question 14

Boiler water contaminated with organic material will likely:
A) Have a low pH
B) Foam
C) Produce very hard scale
D) Cause grooving of boiler metal
E) Result in pitting of boiler metal

Answer 14

B) Foam

Question 15

The test used for the acidity or alkalinity of the condensate returns of a steam system is called the:
A) Molybdate test
B) pH test
C) Hardness test
D) Phosphate test
E) TDS test

Answer 15

B) pH test

Question 16

Sodium phosphates will keep the boiler water slightly alkaline and non corrosive and:
A) Will put a light protective scale on the heating surfaces
B) Prevents the formation of any kind of sludge
C) Absorbs dissolved oxygen and prevents CO2 pitting
D) Will prevent scale formation
E) Prevents erosion of the boiler metal

Answer 16

D) Will prevent scale formation

Question 17

The class of water impurity that may be in the form of sand or silt is called:
A) Diluted solids
B) Suspended solids
C) Organics
D) Dissolved solids
E) Absorbed sludge

Answer 17

B) Suspended solids

Question 18

To protect yourself from hazards associated with sampling you need:
A) Rubber chemical suit
B) Welding mask
C) Fire proof clothing
D) Eye protection
E) Disposable paper dust mask

Answer 18

D) Eye protection

Question 19

The main methods of testing the samples are:
A) Meter
B) Titration
C) Comparison
D) All of these methods are correct

Answer 19

D) All of these methods are correct

Question 20

Dissolved solids if allowed to enter the boiler will:
A) Cause foaming in the boiler
B) Settle in lower areas interfering with proper heat transfer and circulation
C) Cause corrosion in the boiler
D) End up somewhere such as heat exchanger surfaces or turbine blading
E) Precipitate out of solution

Answer 20

E) Precipitate out of solution

Question 21

An indicator is a solution that will change colour as the chemical properties of the ________ change.
A) Steam
B) Air
C) Oil
D) Water
E) Condensate

Answer 21

D) Water

Question 22

An example of medium hard water would have a range of hardness to be expected in ppm of:
A) Over 181
B) 121 to 180
C) 61 to 120
D) 15 to 60
E) 0 to 15

Answer 22

C) 61 to 120

Question 23

Suspended solids if allowed to enter the boiler will:
A) Cause corrosion in the boiler
B) Cause foaming in the boiler
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) Precipitate out of solution

Answer 23

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

Question 24

Organics if allowed to enter the boiler will:
A) End up somewhere such as heat exchanger surfaces or turbine blading
B) Precipitate out of solution
C) Cause corrosion in the boiler
D) Cause foaming in the boiler
E) Settle in lower areas interfering with proper heat transfer and circulation

Answer 24

D) Cause foaming in the boiler

Question 25

The amount of boiler blowdown is based on the _________ reading obtained by testing a sample of boiler water.
A) Conductivity
B) TDS
C) Alkalinity
D) Hardness
E) pH

Answer 25

B) TDS

Question 26

The pH test on boiler water is conducted using the ________ method.
A) Comparison
B) Penetration
C) Titration
D) Meter
E) Tensile

Answer 26

D) Meter

Question 27

A meter used during a water test, which will measure the water’s ability to conduct an electric current, is the:
A) TDS meter
B) pH meter
C) Hardness meter
D) Condensate meter
E) Colour comparator

Answer 27

A) TDS meter

Question 28

When doing a titration method of any boiler water test, the end point of the test is indicated by:
A) A colour change
B) The sample being compared to a known standard colour
C) The sample turning a blue colour
D) The sample turning a pink colour
E) A change in a meter reading

Answer 28

A) A colour change

Question 29

Most water testing reagents have:
A) An expiry date
B) A small scoop for measuring purposes
C) A very strong odour which is harmful
D) A blue colour
E) A red colour

Answer 29

A) An expiry date