NYC HIGH PRESSURE STEAM EXAM QUESTIONS AND
ANSWERS LATEST
Question 1
Pipe Insulation shall have a maximum flame spread of ___________?
Correct Answer
" Shall have a maximum flame spread index of 25". NYC Mech: 1204.1
Question 2
15 Who needs to furnish a control diagram and boiler operation instructions?
Correct Answer
The Installer. NYC Mech: 1004.7
Page 1 of 69
,Question 1
Adding water to promote combustion in coal fired boiler is called
Correct Answer
Tempering
Question 2
What is true about flues
Correct Answer
Greater than 4" ID
Question 3
Which of the following is a yearly inspection to be performed on a steam turbine
Correct Answer
Inspect the oil and steam atomizers
Question 4
What condition does graphitization cause in boiler steel
Correct Answer
Makes the steel weaker
Page 2 of 69
,Question 5
Which statement is true about operation of a boiler with a superheater
Correct Answer
For maximum economy, a constant superheat temperature is desirable
Question 6
The primary difference between a high pressure gas burner and a low pressure gas burner
Correct Answer
The location where the air and fuel are mixed
Question 7
All of the following are types of modern automatic combustion control systems except
Correct Answer
Regulating
Question 8
A centrifugal pimps performance and king life are dependent on
Correct Answer
Wear rings seals and thrust imposed
Page 3 of 69
, Question 9
A type of pump that uses the velocity of steam against a mass of water is a
Correct Answer
Injector
Question 10
When an accumulation test is performed, the boiler is fired at
Correct Answer
Maximum firing rate with the main steam stop valve closed
Question 11
When using soot blowers, what is the draft condition
Correct Answer
-.10 to .15 inches of water
Question 12
A boiler produces 360,000 total pounds of steam over a 24 hour period. Assuming the boiler mailed steam at
atmospheric pressure and 212°, what horsepower was developed by the boiler
Correct Answer
435 hp
Page 4 of 69
ANSWERS LATEST
Question 1
Pipe Insulation shall have a maximum flame spread of ___________?
Correct Answer
" Shall have a maximum flame spread index of 25". NYC Mech: 1204.1
Question 2
15 Who needs to furnish a control diagram and boiler operation instructions?
Correct Answer
The Installer. NYC Mech: 1004.7
Page 1 of 69
,Question 1
Adding water to promote combustion in coal fired boiler is called
Correct Answer
Tempering
Question 2
What is true about flues
Correct Answer
Greater than 4" ID
Question 3
Which of the following is a yearly inspection to be performed on a steam turbine
Correct Answer
Inspect the oil and steam atomizers
Question 4
What condition does graphitization cause in boiler steel
Correct Answer
Makes the steel weaker
Page 2 of 69
,Question 5
Which statement is true about operation of a boiler with a superheater
Correct Answer
For maximum economy, a constant superheat temperature is desirable
Question 6
The primary difference between a high pressure gas burner and a low pressure gas burner
Correct Answer
The location where the air and fuel are mixed
Question 7
All of the following are types of modern automatic combustion control systems except
Correct Answer
Regulating
Question 8
A centrifugal pimps performance and king life are dependent on
Correct Answer
Wear rings seals and thrust imposed
Page 3 of 69
, Question 9
A type of pump that uses the velocity of steam against a mass of water is a
Correct Answer
Injector
Question 10
When an accumulation test is performed, the boiler is fired at
Correct Answer
Maximum firing rate with the main steam stop valve closed
Question 11
When using soot blowers, what is the draft condition
Correct Answer
-.10 to .15 inches of water
Question 12
A boiler produces 360,000 total pounds of steam over a 24 hour period. Assuming the boiler mailed steam at
atmospheric pressure and 212°, what horsepower was developed by the boiler
Correct Answer
435 hp
Page 4 of 69
