ENGINEER EXAM
Oxygen in the boiler will cause - ANSWERS-pitting of boiler metal
What Valve cuts the boiler in on the line and off-line automatically? -
ANSWERS-Automatic nonreturn valve
Grade refers to the ___ of a coal - ANSWERS-size, heating value, and
ash content
What is the three types of fire tubs boilers? - ANSWERS-1. Horizontal
Return Tubular Boiler
2. Scotch Marine Boiler
3. Vertical Firetube Boiler
The four elements that must be regulated in a combustion controlled
system are... - ANSWERS-Fuel supply, air supply, ratio of air to fuel,
removal of combustion gases
The scanner is sensitive to.... - ANSWERS-Infrared or ultraviolet rays
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, MD STATIONARY LATEST
ENGINEER EXAM
Carbon dioxide ( CO2) in the flue gas indicates.... - ANSWERS-
Complete combustion
AUTOMATIC NONRETURN VALVE - ANSWERS-Valve located on
the steam line closest to the shell of the boiler that cuts the boiler in on
the line and off-line automatically. This valve also protects the system in
the event of a large steam leak on any boiler.
The automatic nonreturn valve protects what.... - ANSWERS-The
system in the event of a large steam leak on any boiler
Rotary pump use what to turn? - ANSWERS-Gears
No. _______________ fuel oil must be heated to reach the required
temperature for combustion - ANSWERS-6
Carbon monoxide (CO) in the flue gas indicates ______ - ANSWERS-
incomplete combustion
What amount is atmospheric pressure? - ANSWERS-14.7
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