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Maryland Stationary Engineer – Grade 1 Exam
COMPLETE VERIFIED QUESTIONS AND DETAILED
SOLUTIONS LATEST UPDATE THIS YEAR||NEWEST
EXAM!!!
On an open air expansion tank hot water boiler system;
how high should it be mounted? - Answer-(4 Feet ) above
the highest heating element.
What is the minimum top clearance of boilers with
manholes? - Answer-5 feet
Package boilers; steam heating boilers and hot water
heating boilers shall have a minimum clearance of? -
Answer-2 feet from ceiling. Code chapter 10 page76
Most important safety device on a boiler? - Answer-Safety
relief valve
What does a Black Liquor Boiler do? - Answer-Black
Liquor is the by product of wood pulp processing in the
paper making industry.
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What does Black liquor boiler known for? - Answer-Steam
generation and recovery of soda ash
Maximum line voltage for control on a boiler? - Answer-
150 volts
Under what code are boilers designed and constructed? -
Answer-ASME- CSD 1
How many low water cut offs are needed per code for a
hot water system when a boiler has inputs greater than
400,000 btu per hr - Answer-1 LWCO is needed.
What is the minimum and maximum size for a safety valve
per code for boilers? - Answer-Minimum 3/4" and
Maximum 4 1/2"
What stamp is put on a boiler after repairs? - Answer-"R"
What is the equalizing system used for? - Answer-The
equalizing system is for warming up the steam lead.
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A blowdown valve is located at the lowest water space of a
boiler for three purposes - Answer-1. to remove
precipitated sludge or loose scale \n2. To permit rapid
lowering of the boiler water if it has become too high
accidentally \n3. As a means of removing water from the
boiler so that fresh water may be added to keep the
concentration of solids below the point where difficulties
may be experienced.
In the old power boiler which type of feed-water regulators
were not used? - Answer-Electronic
After opening a boiler for repairs how much oxygen is
needed? - Answer-19%
What is the first thing you do when shutting down a boiler?
- Answer-Turn off (extinguish fire)
What is the legal limit of acceptable asbestos particles ? -
Answer-0.1 fibers per cubic centimeter
What is CREEP? - Answer-Creep is defined as the slow
deformation of material with time; with the deformation
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taking place at elevated temperatures with no increase in
stress.
What is the BTU content of Anthracite coal? - Answer-
14000 btu/lb
What substance transfers electrical current in a photocell?
- Answer-Electricity will flow when the CADMIUM is
exposed to sufficient light.
What device acts as a check valve in both directions and
keeps pumps primed? - Answer-FOOT VALVES are used
for pumps under suction pressure to prevent backflow
primed? on the suction line.
What protects boilers from explosion in the furnace? -
Answer-A flame guard system is an arrangement of flame
detection system; interlocks; and relays which will sense
the presence of a proper flame in a furnace and cause fuel
to be shut off to the furnace if a hazardous condition
develops (improper flame or combustion).
Maryland Stationary Engineer – Grade 1 Exam
COMPLETE VERIFIED QUESTIONS AND DETAILED
SOLUTIONS LATEST UPDATE THIS YEAR||NEWEST
EXAM!!!
On an open air expansion tank hot water boiler system;
how high should it be mounted? - Answer-(4 Feet ) above
the highest heating element.
What is the minimum top clearance of boilers with
manholes? - Answer-5 feet
Package boilers; steam heating boilers and hot water
heating boilers shall have a minimum clearance of? -
Answer-2 feet from ceiling. Code chapter 10 page76
Most important safety device on a boiler? - Answer-Safety
relief valve
What does a Black Liquor Boiler do? - Answer-Black
Liquor is the by product of wood pulp processing in the
paper making industry.
,2|Page
What does Black liquor boiler known for? - Answer-Steam
generation and recovery of soda ash
Maximum line voltage for control on a boiler? - Answer-
150 volts
Under what code are boilers designed and constructed? -
Answer-ASME- CSD 1
How many low water cut offs are needed per code for a
hot water system when a boiler has inputs greater than
400,000 btu per hr - Answer-1 LWCO is needed.
What is the minimum and maximum size for a safety valve
per code for boilers? - Answer-Minimum 3/4" and
Maximum 4 1/2"
What stamp is put on a boiler after repairs? - Answer-"R"
What is the equalizing system used for? - Answer-The
equalizing system is for warming up the steam lead.
,3|Page
A blowdown valve is located at the lowest water space of a
boiler for three purposes - Answer-1. to remove
precipitated sludge or loose scale \n2. To permit rapid
lowering of the boiler water if it has become too high
accidentally \n3. As a means of removing water from the
boiler so that fresh water may be added to keep the
concentration of solids below the point where difficulties
may be experienced.
In the old power boiler which type of feed-water regulators
were not used? - Answer-Electronic
After opening a boiler for repairs how much oxygen is
needed? - Answer-19%
What is the first thing you do when shutting down a boiler?
- Answer-Turn off (extinguish fire)
What is the legal limit of acceptable asbestos particles ? -
Answer-0.1 fibers per cubic centimeter
What is CREEP? - Answer-Creep is defined as the slow
deformation of material with time; with the deformation
, 4|Page
taking place at elevated temperatures with no increase in
stress.
What is the BTU content of Anthracite coal? - Answer-
14000 btu/lb
What substance transfers electrical current in a photocell?
- Answer-Electricity will flow when the CADMIUM is
exposed to sufficient light.
What device acts as a check valve in both directions and
keeps pumps primed? - Answer-FOOT VALVES are used
for pumps under suction pressure to prevent backflow
primed? on the suction line.
What protects boilers from explosion in the furnace? -
Answer-A flame guard system is an arrangement of flame
detection system; interlocks; and relays which will sense
the presence of a proper flame in a furnace and cause fuel
to be shut off to the furnace if a hazardous condition
develops (improper flame or combustion).
