MD STATIONARY ENGINEER GRADE 1
CERTIFICATION EXAMINATION TEST 2026
◉ what are pulsations?
-----
how would you correct this condition? Answer: pulsations = when
the flame leaves the burner tip and then returns. this may become so
severe that the combustion consists of a series of small explosions.
-----
how to correct:
pulverized coal or oil furnace = the proper air-fuel mixture.
gas furnace = increase the draft
◉ how do you pipe an oil supply line from the tank to the burner?
Answer: 1) oil flows from the storage tank through the suction
strainer
2) steam or electric driven pump
3) relief valve
4) steam or electric heater
5) discharge strainer
6) low oil pressure switch
,7) firing rate control valve
8) low oil temperature switch
9) safety shut off valve
10) high oil pressure switch
11) on to the burner or tank return
(manual isolation valves and bypasses must be installed for all
devices so the boiler stays on line during repair)
◉ what are some of the difficulties you may encounter when
operating an oil fired plant?
-----
if you are firing #4 oil and lose oil pressure, what are the first two
things you would look for?
-----
when would you change a strainer? Answer: difficulties may include:
1) pump failure
2) plugged strainer
3) sludge
4) low oil pressure
5) low oil temperature
6) oil too heavy to flow
7) vapor in the pump
,8) air in the suction line
9) improper venting of the tanks
10) faulty atomization
11) worn burner tip
12) carbon formation on the burner tip
-----
1st two things to look for:
1) pump failure
2) plugged strainers
-----
you would valve over to a clean strainer if the delta-P was excessive
◉ name three types of nozzles used in oil burners.
-----
explain where secondary air is admitted. Answer: nozzles:
1) rotary atomizing
2) steam atomizing
3) air atomizing
4) pressure atomizing
-----
secondary air is admitted around the tip.
, ◉ under what conditions must fuel oil be heated?
-----
how is it heated?
-----
how hot is it heated? Answer: #4/5/6 oils need to be heated
-----
steam and electricity can be used to heat oil
-----
oil should not be heated to more than 10*F below its flash point.
(rule of thumb is)
#4 - 135*F
#5 - 185*F
#6 - 220*F
◉ what is a gun type burner?
-----
name its parts Answer: gun type burner = an assembly found on
package boilers
-----
parts:
1) blower
2) igniter
CERTIFICATION EXAMINATION TEST 2026
◉ what are pulsations?
-----
how would you correct this condition? Answer: pulsations = when
the flame leaves the burner tip and then returns. this may become so
severe that the combustion consists of a series of small explosions.
-----
how to correct:
pulverized coal or oil furnace = the proper air-fuel mixture.
gas furnace = increase the draft
◉ how do you pipe an oil supply line from the tank to the burner?
Answer: 1) oil flows from the storage tank through the suction
strainer
2) steam or electric driven pump
3) relief valve
4) steam or electric heater
5) discharge strainer
6) low oil pressure switch
,7) firing rate control valve
8) low oil temperature switch
9) safety shut off valve
10) high oil pressure switch
11) on to the burner or tank return
(manual isolation valves and bypasses must be installed for all
devices so the boiler stays on line during repair)
◉ what are some of the difficulties you may encounter when
operating an oil fired plant?
-----
if you are firing #4 oil and lose oil pressure, what are the first two
things you would look for?
-----
when would you change a strainer? Answer: difficulties may include:
1) pump failure
2) plugged strainer
3) sludge
4) low oil pressure
5) low oil temperature
6) oil too heavy to flow
7) vapor in the pump
,8) air in the suction line
9) improper venting of the tanks
10) faulty atomization
11) worn burner tip
12) carbon formation on the burner tip
-----
1st two things to look for:
1) pump failure
2) plugged strainers
-----
you would valve over to a clean strainer if the delta-P was excessive
◉ name three types of nozzles used in oil burners.
-----
explain where secondary air is admitted. Answer: nozzles:
1) rotary atomizing
2) steam atomizing
3) air atomizing
4) pressure atomizing
-----
secondary air is admitted around the tip.
, ◉ under what conditions must fuel oil be heated?
-----
how is it heated?
-----
how hot is it heated? Answer: #4/5/6 oils need to be heated
-----
steam and electricity can be used to heat oil
-----
oil should not be heated to more than 10*F below its flash point.
(rule of thumb is)
#4 - 135*F
#5 - 185*F
#6 - 220*F
◉ what is a gun type burner?
-----
name its parts Answer: gun type burner = an assembly found on
package boilers
-----
parts:
1) blower
2) igniter
