Minnesota Questions and Answers
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Three (Conduction -- Convection -- Radiation) - correct answer ✔✔How many way can heat be
transferred?
Three - correct answer ✔✔How may types of low pressure are there?
A.S.M.E - correct answer ✔✔Boiler and boiler fitting used in the state of Minnesota must be
constructed to what code?
Aqua Stat - correct answer ✔✔What controls the starting and stopping of the burner by sending
the temperature of the water in a hot water boiler?
Have its valve disc held to its seat by means of testing clamp or "gag" - correct answer
✔✔When a hydrostatic test of a boiler exceeds the maximum allowed working pressure each
safety valve, if left attached to the boiler, should:
Conduction --Convection - Radiation - correct answer ✔✔Heat can be transferred in three ways
and they are:
Purging - correct answer ✔✔The first sequence in the series of automatic burner control is:
Yes, for numerous reasons - correct answer ✔✔Can a low water low water condition i a hot
water heating type boiler?
, Low water cut off - correct answer ✔✔Other than a safety relieve valve what other safety
device should be installed on a hot water heating boiler?
A main stem stop - correct answer ✔✔Each boiler in a battery (pipe together sharing the same
common header) must have:
Air Control - correct answer ✔✔what removes air from a hot water boiler system?
Pressure Control - correct answer ✔✔In a stem boiler system, the unit that turns be burner on
and off based on steam pressure is the:
Shut off the fuel to the burner and secure the boiler. - correct answer ✔✔If water in the gauge
is not visible because of failure of the feed water supply, what should be done?
Accumulation of unburned fuel, oxygen and an ignition source - correct answer ✔✔What
conditions are necessary to cause a furnace explosion?
Daily - correct answer ✔✔The LWCO should be tested:
Absolute pressure - correct answer ✔✔Gauge pressure plus 14.7 psi is called what?
One boiler horsepower - correct answer ✔✔The evaporation of 34.5 ponds of water per hour
from and at a temperature of 212 degrees Fahrenheit is defined as:
Chattering - correct answer ✔✔When a safety valve opens and closes rapidly it is referred to as