Boiler Exam 1c Minnesota: Quiz!

166 Questions | By Serviceking | Updated: Mar 22, 2022 | Attempts: 16265

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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.

Questions and Answers

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 many types of heat are there?
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  4
4.

How many different types of drafts be there?
- 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.

Other that a safety relief valve what other safety device should be installed on a hot water heating boiler?a. city water fill valve b low water fuel cut off c a feed water regulator.
- A.
  
  City water fill valve
- B.
  
  Low water fuel cut off
- C.
  
  A feed water regulator
16.

What is the internal resistance to the flow of fuel oil?a.flash point b viscosity c fire point d pour point
- 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