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MD STATIONARY ENGINEER GRADE
1 EXAM 2026 ACTUAL QUESTIONS
WITH VERIFIED ANSWERS.
What is a boiler? - ANSWER-A specialized equipment that
generates steam or hot water by burning fuel.
What is the primary purpose of a boiler? - ANSWER-To transfer
heat energy to water, producing steam for various processes or
heating purposes.
How does a boiler convert water into steam? - ANSWER-
Through combustion, harnessing the latent energy stored in
fuel.
What type of energy does a boiler utilize? - ANSWER-Heat
energy from burning fuel.
In what contexts are boilers typically used? - ANSWER-For
industrial operations and heating purposes.
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Name several key components of a Boiler - ANSWER-Burner,
Combustion Chamber, Heat Exchanger, Feedwater System,
and Control Systems.
What are fire-tube boilers? - ANSWER-Fire-tube boilers are
steam boilers designed with a cylindrical shell filled with water,
where hot combustion gases flow through tubes within the
boiler.
List two advantages of fire-tube boilers. - ANSWER-1. Compact
size and relatively simple design. 2. Quick heat transfer due to
a large surface area for heat exchange.
What industries commonly use fire-tube boilers? - ANSWER-
Power plants, industrial processes, and heating systems in
buildings.
What distinguishes water-tube boilers from fire-tube boilers? -
ANSWER-Water-tube boilers have water-filled tubes that
circulate hot combustion gases, allowing for efficient heat
transfer.
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What is a key benefit of water-tube boilers? - ANSWER-High
steam generation capacity and the ability to handle high
pressures.
In which industries are water-tube boilers commonly used? -
ANSWER-Chemical plants, refineries, and power stations.
How do electric boilers generate steam? - ANSWER-Electric
boilers utilize electricity to heat water using electric resistance
heating elements submerged in the water.
What are two advantages of electric boilers? - ANSWER-1.
High efficiency. 2. Zero emissions during operation.
What is a disadvantage of electric boilers? - ANSWER-Higher
operating costs compared to other boiler types.
What is the role of the furnace in a steam boiler? - ANSWER-
The furnace generates the necessary heat for boiling water and
converting it into steam.
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What are the two common types of furnaces in steam boilers? -
ANSWER-1. Fire-tube furnaces. 2. Water-tube furnaces.
What is the function of a burner in a steam boiler? - ANSWER-
The burner controls the flow of fuel and ensures efficient
combustion to produce heat.
Name two types of burners used in steam boilers. - ANSWER-
1. Gas burners. 2. Oil burners.
What is the purpose of a heat exchanger in a steam boiler? -
ANSWER-The heat exchanger transfers heat from combustion
gases to the water within the boiler for efficient steam
generation.
What are two types of heat exchangers commonly used in
steam boilers? - ANSWER-1. Shell and tube heat exchangers.
2. Plate heat exchangers.
MD STATIONARY ENGINEER GRADE
1 EXAM 2026 ACTUAL QUESTIONS
WITH VERIFIED ANSWERS.
What is a boiler? - ANSWER-A specialized equipment that
generates steam or hot water by burning fuel.
What is the primary purpose of a boiler? - ANSWER-To transfer
heat energy to water, producing steam for various processes or
heating purposes.
How does a boiler convert water into steam? - ANSWER-
Through combustion, harnessing the latent energy stored in
fuel.
What type of energy does a boiler utilize? - ANSWER-Heat
energy from burning fuel.
In what contexts are boilers typically used? - ANSWER-For
industrial operations and heating purposes.
,2 | Page
Name several key components of a Boiler - ANSWER-Burner,
Combustion Chamber, Heat Exchanger, Feedwater System,
and Control Systems.
What are fire-tube boilers? - ANSWER-Fire-tube boilers are
steam boilers designed with a cylindrical shell filled with water,
where hot combustion gases flow through tubes within the
boiler.
List two advantages of fire-tube boilers. - ANSWER-1. Compact
size and relatively simple design. 2. Quick heat transfer due to
a large surface area for heat exchange.
What industries commonly use fire-tube boilers? - ANSWER-
Power plants, industrial processes, and heating systems in
buildings.
What distinguishes water-tube boilers from fire-tube boilers? -
ANSWER-Water-tube boilers have water-filled tubes that
circulate hot combustion gases, allowing for efficient heat
transfer.
,3 | Page
What is a key benefit of water-tube boilers? - ANSWER-High
steam generation capacity and the ability to handle high
pressures.
In which industries are water-tube boilers commonly used? -
ANSWER-Chemical plants, refineries, and power stations.
How do electric boilers generate steam? - ANSWER-Electric
boilers utilize electricity to heat water using electric resistance
heating elements submerged in the water.
What are two advantages of electric boilers? - ANSWER-1.
High efficiency. 2. Zero emissions during operation.
What is a disadvantage of electric boilers? - ANSWER-Higher
operating costs compared to other boiler types.
What is the role of the furnace in a steam boiler? - ANSWER-
The furnace generates the necessary heat for boiling water and
converting it into steam.
, 4 | Page
What are the two common types of furnaces in steam boilers? -
ANSWER-1. Fire-tube furnaces. 2. Water-tube furnaces.
What is the function of a burner in a steam boiler? - ANSWER-
The burner controls the flow of fuel and ensures efficient
combustion to produce heat.
Name two types of burners used in steam boilers. - ANSWER-
1. Gas burners. 2. Oil burners.
What is the purpose of a heat exchanger in a steam boiler? -
ANSWER-The heat exchanger transfers heat from combustion
gases to the water within the boiler for efficient steam
generation.
What are two types of heat exchangers commonly used in
steam boilers? - ANSWER-1. Shell and tube heat exchangers.
2. Plate heat exchangers.
