Book 3: 7-18 - Monitoring & Testing Flashcards
The phosphate test on boiler water is conducted using the _____ method.
Select one:
A. Comparison
B. Titration
C. Tensile
D. Meter
E. Penetration
D. Meter
An example of very hard water would have a range of hardness to be expected in ppm of:
Select one:
A. 122 to 180
B. 15 to 60
C. Over 181
D. 61 to 120
E. 0 to 15
C. Over 181
Organic if allowed to enter the boiler will:
Select one:
A. Precipitate out of solution
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. Cause foaming in the boiler
E. Cause foaming in the boiler
An example of soft water would have a range of hardness to be expected in ppm of:
Select one:
A. 15 to 60
B. 61 to 120
C. Over 181
D. 0 to 15
E. 121 to 180
A. 15 to 60
An example of medium hard water would have a range of hardness to be expected in ppm of:
Select one:
A. Over 181
B. 15 to 60
C. 0 to 15
D. 61 to 120
E. 121 to 180
D. 61 to 120
Suspended solids if allowed to enter the boiler will:
Select one:
A. End up somewhere such as heat exchanged 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
D. Settle in lower areas interfering with proper heat transfer and circulation
Once the boiler water sample container is completely filler it is capped so that the sample is:
Select one:
A. Protected from cooling to quickly
B. Allowed to cool slowly
C. Not exposed to water contamination
D. Sealed against spillage
E. Not exposed to the atmosphere
E. Not exposed to the atmosphere
A Reagant 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. Oxygen
B. Time
C. Particular constituents
D. Density
E. Specific temperature
C. Particular constituents
Most water testing reagents have:
Select one:
A. A very strong odour which is harmful
B. A blue colour
C. A red colour
D. An expiry date
E. A small scoop for measuring or purposes
D. An expiry date
When doing a titration method of any boiler water test, the end point of the test is indicated by:
Select one:
A. The sample turning a pink colour
B. The sample turning a blue colour
C. The sample being compared to a known standard colour
D. A change in a meter reading
E. A colour change
E. A colour change
When using a meter to conduct a pH water test, the meter used would:
Select one:
A. Basically measure amperage
B. Have to be separately grounded
C. Require a long warm-up period
D. Be, in effect, a voltmeter
E. Measure the wattage used
D. Be, in effect, a voltmeter
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. Boiler intermittent blowdown
D. Water supply
E. Feedwater
A. Continuous blowdown
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
C. End up somewhere such as heat exchanger surfaces or turbine blading
D. Cause corrosion in the boiler
E. Cause foaming in the boiler
A. Precipitate out of solution
The amount of boiler blowdown is based on the _____ reading obtained by testing a sample of boiler water.
Select one:
A. pH
B. TDS
C. Conductivity
D. Hardness
E. Alkalinity
B. TDS
A low hardness test normally done on a water sample from the:
Select one:
A. Raw or city water
B. Blowdown line
C. Deaerator
D. Boiler
E. Softener outlet
E. Softener outlet
