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Minnesota Special Engineer Boiler License Exam (Latest) | Questions and Verified Answers | 100% Correct
Question 1: How many ways can heat be transferred?
Correct answer: Three (Conduction -- Convection -- Radiation)
Question 2: How many types of low pressure are there?
Correct answer: Three
Question 3: Boiler and boiler fitting used in the state of
Minnesota must be constructed to what code?
Correct answer: A.S.M.E
Question 4: What controls the starting and stopping of the
burner by sensing the temperature of the water in a hot water boiler?
Correct answer: Aqua Stat
Question 5: When a hydrostatic test of a boiler exceeds the
maximum allowed working pressure each safety valve, if left
attached to the boiler, should:
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Correct answer: Have its valve disc held to its seat by means of
testing clamp or "gag"
Question 6: Heat can be transferred in three ways and they are:
Correct answer: Conduction -- Convection -- Radiation
Question 7: The first sequence in the series of automatic burner
control is:
Correct answer: Purging
Question 8: Can a low water condition occur in a hot water
heating type boiler?
Correct answer: Yes, for numerous reasons
Question 9: Other than a safety relief valve what other safety
device should be installed on a hot water heating boiler?
Correct answer: Low water cut off
Question 10: Each boiler in a battery (piped together sharing the
same common header) must have:
Correct answer: A main steam stop
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Question 11: What removes air from a hot water boiler system?
Correct answer: Air Control
Question 12: In a steam boiler system, the unit that turns the
burner on and off based on steam pressure is the:
Correct answer: Pressure Control
Question 13: If water in the gauge is not visible because of
failure of the feed water supply, what should be done?
Correct answer: Shut off the fuel to the burner and secure the
boiler
Question 14: What conditions are necessary to cause a furnace
explosion?
Correct answer: Accumulation of unburned fuel, oxygen and an
ignition source
Question 15: The LWCO should be tested:
Correct answer: Daily
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Question 16: Gauge pressure plus 14.7 psi is called what?
Correct answer: Absolute pressure
Question 17: The evaporation of 34.5 pounds of water per hour
from and at a temperature of 212 degrees Fahrenheit is defined
as:
Correct answer: One boiler horsepower
Question 18: When a safety valve opens and closes rapidly it is
referred to as:
Correct answer: Chattering
Question 19: Furnace explosions are caused by a buildup of
combustible gases, or vapors in the combustion chamber, what is the term used to remedy this condition?
Correct answer: Purging
Question 20: Why is a pigtail or siphon required in steam
pressure gauge lines?