IFGC
COUNTY
IMC
LPB
Modern Refrigeration
100
  • What is the minimum test pressure and minimum duration for a gas test?

                3 PSI and 10 min        

   ( IFGC pg. 69&70   406.4.1)

100
  • In St. Louis County in what instance can no permit be allowed?

Emergency                     

(county or IMC  pg.3       106.1)

100
  • A brazed joint can be defined as a metallic mixture of alloys that melt above?

1000*F              

            (IMC pg. 10)

100
  • An OS&Y stop valve on a boiler refers to what?

Outside Stem and Yoke     

      ( Low Pressure Boilers pg. 102&103)                        

100
  • Recovered refrigerants can be used in certain instances, which are?

                   System they were recovered from, shall be filtered and dried, no contamination   (p.156 mod. Refrig).

200
  • A manually or automatically controlled device to regulate draft or the rate of flow of air or combustion gases?

                   Damper  

         (IFGC  p.11)

200
  • In St. Louis County most inspectors think the most important valve on a boiler is the?

 Safety Relief            

                    (county pg. 38)

200
  • What requires Low water cutoff controls?

Both Hot water and steam boilers  

           (IMC p.86   1007.1)

200
  • What gauge is used to measure the Draft on a Boiler?

(Low Pressure Boiler pg.377)

200
  • What is the minimum T-Stat wire gauge for a run less than 50 feet?

18 Gauge   

      (Modern Refrig  p.693)

300
  • Fuel fired equipment located in hazardous locations, garages, and fuel dispensing facilities shall be elevated so ignition source is not less than _______inches off the floor?

18”    

   ( IFGC p.22  305.3)

300
  • In St. Louis County how many contractors licenses can an individual get?

No Limit     

  (County Book  p.14 #7)

300
  • What should safety relief valves be set at?

Maximum of the nameplate pressure rating      (IMC p.86   1006.4)

300
  • Which Refrigerant is both flammable and toxic?

R-717    

  (Modern Refrig. p.116  6.6.1)

400
  • How many threads are cut on a ¾” gas pipe?

10   

       (IFGC  p.66  403.9.2)

400
  • In St. Louis County what is the grace period for licenses expiring?

30 Days      

       (County Book   p.14)

400
  • Every Boiler shall have a shutoff valve in the supply and return piping except?

Single Low-Pressure steam boilers   

   (IMC p.86    1005.1)

400
  • What does an Ohmmeter read?

Resistance 

    (Modern. Refrig p.307)

500
  • What is the length of the threads on a 1” gas pipe?

7/8”       (IFGC  p.66   403.9.2)

500
  • In St. Louis County what is the duration of suspension of license for a 1st offense?

90 Days        

 ( County Book   p.16)

500
  • How much space is required around all sides of a boiler?

18”        (IMC  p.85    1004.3)

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