Minnesota Special Boiler License Practice Exam

How many way can heat be transferred? - Answer- Three (Conduction -- Convection -- Radiation) How may types of low pressure are there? - Answer- Three Boiler and boiler fitting used in the state of Minnesota must be constructed to what code? - Answer- A.S.M.E What controls the starting ans stopping of the burner by sending the temperature of the water in a hot water boiler? - Answer- Aqua Stat When a hydrostatic test of a boiler exceeds the maximum allowed working pressure each safety valve, if left attached to the boiler, should: - Answer- Have its valve disc held to its seat by means of testing clamp or "gag" Heat can be transferred in three ways and they are: - Answer- Conduction --Convection - Radiation The first sequence in the series of automatic burner control is: - Answer- Purging Can a low water low water condition i a hot water heating type boiler? - Answer- Yes, for numerous reasons Other than a safety relieve valve what other safety device should be installed on a hot water heating boiler? - Answer- Low water cut off Each boiler in a battery (pipe together sharing the same common header) must have: - Answer- A main stem stop