3rd class Maine Stationary Steam Exam Questions and Correct Answers.

3rd class Maine Stationary Steam Exam Questions and Correct
Answers
Question 1
How much CO2 is in flue gas for complete combustion?
A) 10%
B) 14%
C) 15%
D) 19.5%
Correct Answer
B) 14%



Question 2
Sediment in fuel oil will cause ________
Correct Answer
clogged atomizer tips




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,Question 3
What is the product in the flue gas when it reaches its dew point?
A) sulfuric acid
B) h2o
C) Myric acid
Correct Answer
A) sulfuric acid



Question 4
Recovery boilers have a potential of explosions because of?
A) Water smelt reactions
B) Combustible gas explosions
C) Dissolving tank explosions
D) All of the above
Correct Answer
D) All of the above



Question 5
White smoke coming from the stack indicates
Correct Answer
Too much excess air




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, Question 6
Where is the mixing taking place in an atomizer gun? inside or outside the burner tip?
Correct Answer
Inside



Question 7
A three phase squirrel cage induction motor could run hot due to all except ________
A) A grounded station
B) A shortened station
C) A high power factor
Correct Answer
C) High power factor



Question 8
In addition to being hazardous to personnel, gas leaks through the boiler can also ___________
Correct Answer
Impair the effectiveness of the purge cycle



Question 9
The efficiency of boiler combustion can be measured by the relative proportions of what elements in the flue gases?
Correct Answer
Carbon dioxide, Oxygen, and Carbon monoxide




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