MD STATIONARY ENGINEER GRADE 2 EXAM
2026 COMPLETE TEST PREPARATION PACKAGE
◉ Blowdown shall not be less than __ or lower than __ of the safety
valve? Answer: Less than 2 lbs or lower than 96% of the safety valve.
◉ What are 3 types of feedwater regulators: Answer: Thermostatic-
mechanical regulator; Thermostatic-fluid type; Float operated style
◉ On a piston type trap what would cause it to open? Answer: Cold
Condensate Answers on test was steam psi drop and temp drop
◉ If you open or close a steam stop valve to quick it will cause what?
Answer: Water Hammer
◉ What are two types of commonly used feed water pumps Answer:
Injectors and Inspirator
◉ What is blistering caused by? Answer: A Slag Inclusion forming a
lamination at time the plate was rolled in the steel mill and it is
actually a separation of the metal from the shell plate; caused by
impurities rolled into the shell plate when formed
,◉ Grooving is a form of deterioration of boiler plate by a
combination of ________ and ______________. Answer: localized corrosion
; stress concentration
◉ What compound is not a heat producer? Answer: Nitrogen
◉ How many types of flame detectors are there? Answer: 6 Types
◉ On a package boiler; how many ways could cause fire puffs when
it is starting up? Answer: 6 ways
◉ Air is _____% oxygen by weight & ______% by volume. Answer: Air is
23% oxygen by weight & 21% by volume.
◉ The hardgrove index is a measurement of___________. Answer:
Grindability
◉ How many pounds of oxygen are required to properly burn 1
pound of methane? Answer: 4 lbs of oxygen
◉ How much excess air is required to burn coal? Answer: 50%
◉ How much air is required to correctly atomize #4 fuel oil and
lighter fuel? Answer: 20 psi for #4 and lighter fuel 10 psi
,◉ A _____________ test is used to determine smoke density. Answer:
Ringlemann
◉ A ______________ measures the difference in: pressure between two
points and measures draft. Answer: Manometer
◉ A control that operates from steam pressure is of what type?
Answer: ON/OFF control
◉ The flow thru a cooling tower is. Answer: Horizontal to vertical
and Horizontal to Horizontal
◉ What does Proximate analysis of coal report? Answer: 1 % of
moisture
◉ On a HRT boilers flame impingement will cause what? Answer:
Hot spots/caused by refractory missing and local scale formation
◉ Ultimate analysis of coal gives the % of the? Answer: Various
elements
◉ When working on a boiler lamps less than _ should be used.
Answer: 32 volts
, ◉ Low pressure burners are at atmospheric an at___ and _____?
Answer: 1 to 2 psi
◉ How long can the pilot be long before the main flame is turned on.
Answer: 15 seconds
◉ At what PSI do you hold a nitrogen blanket at? Answer: 5 psi
◉ The most common cause of furnace explosions are from. Answer:
Momentary failure of ignition during regular operation.
◉ Five major Nondestructive tests are: Answer: Ultrasonic;
Radiography; Magnetic- particle; Dye-penetrant and eddy-current.
◉ This is a result of putting a cooling tower to close to a building's
air intake for outside air. Answer: Legionaries Disease
◉ Which would be the appropriate test for porosity of metal for a
boiler? Answer: Pulse Echo
◉ Which chemical is used to combat scale ? Answer: Combined
phosphate treatment (Tri-Sodium phosphate)
2026 COMPLETE TEST PREPARATION PACKAGE
◉ Blowdown shall not be less than __ or lower than __ of the safety
valve? Answer: Less than 2 lbs or lower than 96% of the safety valve.
◉ What are 3 types of feedwater regulators: Answer: Thermostatic-
mechanical regulator; Thermostatic-fluid type; Float operated style
◉ On a piston type trap what would cause it to open? Answer: Cold
Condensate Answers on test was steam psi drop and temp drop
◉ If you open or close a steam stop valve to quick it will cause what?
Answer: Water Hammer
◉ What are two types of commonly used feed water pumps Answer:
Injectors and Inspirator
◉ What is blistering caused by? Answer: A Slag Inclusion forming a
lamination at time the plate was rolled in the steel mill and it is
actually a separation of the metal from the shell plate; caused by
impurities rolled into the shell plate when formed
,◉ Grooving is a form of deterioration of boiler plate by a
combination of ________ and ______________. Answer: localized corrosion
; stress concentration
◉ What compound is not a heat producer? Answer: Nitrogen
◉ How many types of flame detectors are there? Answer: 6 Types
◉ On a package boiler; how many ways could cause fire puffs when
it is starting up? Answer: 6 ways
◉ Air is _____% oxygen by weight & ______% by volume. Answer: Air is
23% oxygen by weight & 21% by volume.
◉ The hardgrove index is a measurement of___________. Answer:
Grindability
◉ How many pounds of oxygen are required to properly burn 1
pound of methane? Answer: 4 lbs of oxygen
◉ How much excess air is required to burn coal? Answer: 50%
◉ How much air is required to correctly atomize #4 fuel oil and
lighter fuel? Answer: 20 psi for #4 and lighter fuel 10 psi
,◉ A _____________ test is used to determine smoke density. Answer:
Ringlemann
◉ A ______________ measures the difference in: pressure between two
points and measures draft. Answer: Manometer
◉ A control that operates from steam pressure is of what type?
Answer: ON/OFF control
◉ The flow thru a cooling tower is. Answer: Horizontal to vertical
and Horizontal to Horizontal
◉ What does Proximate analysis of coal report? Answer: 1 % of
moisture
◉ On a HRT boilers flame impingement will cause what? Answer:
Hot spots/caused by refractory missing and local scale formation
◉ Ultimate analysis of coal gives the % of the? Answer: Various
elements
◉ When working on a boiler lamps less than _ should be used.
Answer: 32 volts
, ◉ Low pressure burners are at atmospheric an at___ and _____?
Answer: 1 to 2 psi
◉ How long can the pilot be long before the main flame is turned on.
Answer: 15 seconds
◉ At what PSI do you hold a nitrogen blanket at? Answer: 5 psi
◉ The most common cause of furnace explosions are from. Answer:
Momentary failure of ignition during regular operation.
◉ Five major Nondestructive tests are: Answer: Ultrasonic;
Radiography; Magnetic- particle; Dye-penetrant and eddy-current.
◉ This is a result of putting a cooling tower to close to a building's
air intake for outside air. Answer: Legionaries Disease
◉ Which would be the appropriate test for porosity of metal for a
boiler? Answer: Pulse Echo
◉ Which chemical is used to combat scale ? Answer: Combined
phosphate treatment (Tri-Sodium phosphate)
