Online Quizzes for Boiler Operations Engineering Exams

Quiz on Basics of Boilers and Boiler Parts

The following multiple-choice questions are designed for Boiler Operation Engineering (BOE) examination preparation, covering basic boiler principles, boiler classification, construction, accessories, mountings, and boiler components

BOE_Boiler Basics Questions and Answer

Basics questions asked in MOST BOE Exams in India

1 / 10

Which component is installed to protect a boiler from excessive pressure?

Economizer

Safety valve

Blowdown valve

Feed pump

2 / 10

What is the function of water wall tubes?

Absorb radiant heat from the furnace

Remove dissolved salts

Preheat air and fuel

Collect fly ash

3 / 10

What is the function of downcomer tubes?

Carry steam to the turbine

Carry water from the steam drum to lower headers

Carry flue gases

Supply fuel to the burner

4 / 10

Which component collects sludge and sediment in a boiler?

Superheater

Mud drum

Air preheater

.Steam outlet

5 / 10

What is the function of a steam drum?

Fuel storage

Steam-water separation

Ash collection

Air compression

6 / 10

What is the normal atmospheric pressure approximately at sea level?

0.5 bar

1.013 bar

5 bar

10 bar

7 / 10

What is the function of combustion in a boiler furnace?

To reduce steam pressure

To release heat from fuel

To cool feedwater

To remove dissolved oxygen

8 / 10

What is the primary function of a superheater?

Reduce steam temperature

Increase steam temperature above saturation temperature

Increase water level

Remove ash

9 / 10

What is the function of an economizer?

Heat combustion air

Cool steam

Preheat boiler feedwater using flue gas

Remove carbon dioxide from steam

10 / 10

Which boiler component is used to preheat combustion air?

Economizer

Superheater

Air preheater

FD Fan

Your score is

The average score is 90%

Quiz on Boilers Mounting and Accessories

Steam drum importance in boiler operations

BOE- Boiler Mounting and Accessories

1 / 15

What is the purpose of boiler blowdown?

Reduce TDS concentration

Increase fuel consumption

Increase steam pressure

Increase water level

2 / 15

Which equipment is used to remove particulate matter from boiler flue gas?

Economizer

ESP

Air Prehater

Steam drum

3 / 15

What is the function of an ID fan?

Supply primary air

Maintain furnace draft by extracting flue gases

Supply fuel oil

Increase steam pressure

4 / 15

What is the function of an FD fan?

Remove flue gases

Supply combustion air to the furnace

Pump boiler water

Remove bottom ash

5 / 15

Which equipment supplies feedwater to the boiler at the required pressure?

FD fan

ID fan

Boiler feed pump

Air compressor

6 / 15

What is the function of a feed check valve?

Prevent reverse flow and regulate feedwater entry

Release excess steam

Remove ash

Control furnace draft

7 / 15

Which device prevents excessive boiler pressure?

Pressure gauge

Safety valve

Feed pump

Water level gauge

8 / 15

Which of the following is a boiler accessory?

Safety valve

Pressure gauge

Water level gauge

Economizer

9 / 15

Which equipment improves boiler efficiency by recovering heat from flue gases?

Economizer

Safety valve

Steam stop valve

Blowdown valve

10 / 15

What is the purpose of a soot blower?

Increase steam pressure

Remove ash and soot deposits from heating surfaces

Increase feedwater temperature

Control steam flow

11 / 15

What is the purpose of a blowdown valve?

Increase steam pressure

Remove sludge and dissolved solids

Increase furnace temperature

Control fuel flow

12 / 15

What is the function of a pressure gauge?

Measure temperature

Measure boiler pressure

Measure water flow

Measure steam quality

13 / 15

What is the purpose of a water level gauge?

Measure steam pressure

Measure feedwater flow

Indicate water level inside the boiler

Measure flue gas temperature

14 / 15

How many safety valves are generally provided on a boiler as per applicable boiler requirements?

One in every case

Two in every case

As specified by applicable regulations and boiler design

No safety valve required

15 / 15

Which of the following is a mandatory boiler mounting?

Economizer

Safety valve

Air preheater

Superheater

Your score is

The average score is 38%