Book 3 Chapter 18: Monitoring & Testing Flashcards
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
B) A colour change
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
A) TDS meter
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
B) Be, in effect, a voltmeter
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
A) The use of a meter
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
C) pH test
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
A) A reagent
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
D) An expiry date
To prevent scale formation, inject:
A) Phenolphthalein
B) Phosphates
C) Amines
D) Molybdate
E) Sodium chloride
B) Phosphates
Organic contaminants in boiler water cause:
A) Water hammer
B) Corrosion
C) Shrinkage
D) Foaming
E) Scaling
D) Foaming
Total dissolved solid concentration is generally determined by measuring:
A) pH
B) Acidity
C) Radicals
D) Conductivity
E) Alkalinity
D) Conductivity
A conductivity meter is used to measure the boiler water:
A) pH
B) Alkalinity
C) Turbidity
D) Hardness
E) TDS
E) TDS
Hardness is a measure of relative concentration of:
A) Dissolved oxygen
B) Calcium carbonate
C) Organics
D) Sludge
E) Sodium
B) Calcium carbonate
Dissolved gases in boiler water cause:
A) Corrosion
B) Shrinkage
C) Scaling
D) Reduced chemical use
E) Enhanced heat transfer
A) Corrosion
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
B) Foam
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
B) pH test
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
D) Will prevent scale formation
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
B) Suspended solids
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
D) Eye protection
The main methods of testing the samples are:
A) Meter
B) Titration
C) Comparison
D) All of these methods are correct
D) All of these methods are correct
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
E) Precipitate out of solution
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
D) Water
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
C) 61 to 120
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
D) Settle in lower areas interfering with proper heat transfer and circulation
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
D) Cause foaming in the boiler
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
B) TDS
The pH test on boiler water is conducted using the ________ method.
A) Comparison
B) Penetration
C) Titration
D) Meter
E) Tensile
D) Meter
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
A) TDS meter
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
A) A colour change
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
A) An expiry date