Boiler Exam 1c Minnesota
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Not just anyone can operate a boiler without proper training. The boiler exam 1C below from the Minnesota state is designed to see how qualified you are to operate a boiler. Give it a shot and see just how much you know. Give it a shot and keep reading up for the exam.
- 1.Which formula is used to determine the efficiecy of the boiler based on heat absorption?
- A.
A swp = ts xt x eff
- B.
b. output divided by the input
- C.
C. e=mc squared
- D.
D input divided by output
- 2.How many ways can heat be transferred?
- A.
1
- B.
2
- C.
3
- D.
4
- 3.How man types of heat are there?
- A.
1
- B.
2
- C.
3
- D.
4
- 4.
- A.
1
- B.
2
- C.
3
- D.
4
- 5.How many different types of boilers are there?
- A.
1
- B.
2
- C.
3
- D.
4
- 6.How many different types of low water fuel cut are in general use?
- A.
1
- B.
2
- C.
3
- D.
4
- 7.How many different types of air are there?
- A.
1
- B.
2
- C.
3
- D.
4
- 8.A (RPZ) reduced pressure zone or backflow preventer prevents contaminated water from entering the domestic water supply.
- A.
True
- B.
False
- 9.Boilers and boiler fittings used in the state of Minnesota must be constructed to what code?
- A.
A N.E.C.
- B.
A.S.M.E.
- C.
City code
- D.
N.F.P. A
- 10.What is the unit called that controls the starting and stopping of the burner by sensing the temperature of the water in a hot water boiler?
- A.
Aqua stat
- B.
Pressure troll
- C.
Vapor stat
- D.
Flow control valve
- 11.Heat can't be transferred in three ways and they are:
- A.
Latent heat, specific heat, sensible heat
- B.
Conduction , radiation, convection
- C.
Heat flow measured heat flow.
- 12.The first sequence in the series of automatic bgurner controls is:
- A.
Ignition
- B.
Purging
- C.
To make up the gas switch
- D.
Startup on low fire
- 13.Air that is mixed with the fuel at / or in the burner is called:
- A.
Secondary air
- B.
Primary air
- C.
Excess air
- D.
Mixable air
- 14.Can a low water condition occur in a hot water heating type boiler?
- A.
No, because the boiler is completely filled with water.
- B.
Yes, for numerous reasons
- C.
No , because there is water in the expansion tank
- 15.
- A.
City water fill valve
- B.
Low water fuel cut off
- C.
A feed water regulator
- 16.
- A.
Flash point
- B.
Viscosity
- C.
Fire point
- D.
Pour point
- 17.Each boiler in a battery (piped together sharing the same common header) must have:
- A.
Two or more safety valves on each boiler
- B.
A main steam stop
- C.
A chimney and breeching to each boiler
- D.
Two or more types of fuel
- 18.What removes air from a hot water boiler system?
- A.
A siphon device
- B.
Air control
- C.
Flow control
- D.
Relief valve
- 19.When a hydrostatic test of a boiler exceeds the maximum allowable working pressure each safety valve, if left attached to the boiler, should:
- A.
Be held to its seat by screwing down the compressions spring
- B.
Have its valve disc held to its seat by means of testing clamp or” gag
- C.
Be set above the maximum allowable working pressure
- 20.Why is a safety valve sealed?
- A.
To prevent damage to the safety valve
- B.
To prevent tampering with pressure and capacity
- C.
To allow for blow back
- D.
To protect to spring
- 21.Oxygen in a boiler water can causea scale b carry over c corrosion d priming
- A.
Scale
- B.
Carry over
- C.
Corrosion
- D.
Priming
- 22.In a steam boiler system, the unit that turns the burner on and off based on steam spessure is the :a aqustat bpressure control c potentiometer d modulator control
- A.
Aqustat bpressure control
- B.
Pressure control
- C.
Potentiomete
- D.
Modulator control
- 23.If wate in the gauge glass is not visible because of failure of the feed water supply, what should be done?
- A.
Add water immediately through the manual fill line
- B.
Shut off the fuel to the burner and secure the boiler
- C.
Notify the boiler inspector but continue to run the boiler
- 24.What two scales does a pressure control have?A 0 to 20 psi and 0 to 1 siB cut in pressure and differential pressureC 0 to 10 psi and 0 to 20 psiD none of these
- A.
0 to 20 psi and 0 to 15 psi
- B.
Cut in pressure and differential pressure
- C.
0 to 10 psi and 0 to 20 ps
- D.
None of these
- 25.What is the minimum size bottom blowdown line used on a mini or miniature boiler?
- A.
¼ inch
- B.
½ inch
- C.
¾ inch
- D.
1 inch
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