1|Page
MARYLAND STATIONARY ENGINEER GRADE 1
LICENSE EXAMINATION ACTUAL VERIFIED EXAM
COMPLETE QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR||NEWEST EXAM!!!
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.
A blowdown valve is located at the lowest water space of a
boiler for three purposes - Answer-1. to remove
,2|Page
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
taking place at elevated temperatures with no increase in
stress.
,3|Page
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).
What size pipe is used as a header in a boiler operating at
100psi? - Answer-6 inches
, 4|Page
What device is used to measure flue gasses - Answer-The
Orsat Analyzer
Which low water cut off does not have a mercury switch? -
Answer-The Submerged electrode type
What is the btu output per lb of #4 fuel oil? - Answer-18
What substance is used for the electric transmission in an
RTD? - Answer-Platinum is used because of its stability at
high temperatures
How much air is needed for the combustion of pulverized
coal; gas; oil? - Answer-50% for coal and 10-30% for gas
& oil
In old power boilers which type of feedwater regulators
were not used? \n(A) hydraulic \n(B) float \n(C)
thermostatic expansion \n(D) electronic - Answer-
ANSWER D electronic/electro-magnetic
What is hard forming scale? - Answer-Silica
MARYLAND STATIONARY ENGINEER GRADE 1
LICENSE EXAMINATION ACTUAL VERIFIED EXAM
COMPLETE QUESTIONS AND VERIFIED SOLUTIONS
LATEST UPDATE THIS YEAR||NEWEST EXAM!!!
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.
A blowdown valve is located at the lowest water space of a
boiler for three purposes - Answer-1. to remove
,2|Page
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
taking place at elevated temperatures with no increase in
stress.
,3|Page
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).
What size pipe is used as a header in a boiler operating at
100psi? - Answer-6 inches
, 4|Page
What device is used to measure flue gasses - Answer-The
Orsat Analyzer
Which low water cut off does not have a mercury switch? -
Answer-The Submerged electrode type
What is the btu output per lb of #4 fuel oil? - Answer-18
What substance is used for the electric transmission in an
RTD? - Answer-Platinum is used because of its stability at
high temperatures
How much air is needed for the combustion of pulverized
coal; gas; oil? - Answer-50% for coal and 10-30% for gas
& oil
In old power boilers which type of feedwater regulators
were not used? \n(A) hydraulic \n(B) float \n(C)
thermostatic expansion \n(D) electronic - Answer-
ANSWER D electronic/electro-magnetic
What is hard forming scale? - Answer-Silica
