Question 1

By what is natural draught produced?

Accepted Answer

A) air duct 
B) chimney 
C) locomotive exhaust 
D) air blower 
A) air duct 
B) chimney 
C) locomotive exhaust 
D) air blower B

Question 2

Which of the following given below as the affect on amount natural draught?

Accepted Answer

A) boiler operation 
B) size of the furnace 
C) grade of the fuel 
D) dust content in the fuel is used 
A) boiler operation 
B) size of the furnace 
C) grade of the fuel 
D) dust content in the fuel is used A

Question 3

Why are salts deposited on the evaporator drum?

Accepted Answer

A) due to continuous circulation of water 
B) due to usage of hard water containing calcium content 
C) due to circulation of impure water 
D) due to the chemicals added in water 
A) due to continuous circulation of water 
B) due to usage of hard water containing calcium content 
C) due to circulation of impure water 
D) due to the chemicals added in water C

Question 4

How can exhaust gas be recovered in the induced draught?

Accepted Answer

A) by installing the forced draught fan at the starting point 
B) by extending the chimney's height 
C) by inletting high amount of air from multiple air ducts 
D) by installing air preheater and economizer along the gas path 
A) by installing the forced draught fan at the starting point 
B) by extending the chimney's height 
C) by inletting high amount of air from multiple air ducts 
D) by installing air preheater and economizer along the gas path

Question 5

What is feature of the Loffler boilers?

Accepted Answer

A) evaporating water by super heated steam 
B) provide better efficiency by re-circulating gas coming out of turbine 
C) produce better steam quality by heating the boiler furnace above critical degrees 
D) eliminate the extra components used 
A) evaporating water by super heated steam 
B) provide better efficiency by re-circulating gas coming out of turbine 
C) produce better steam quality by heating the boiler furnace above critical degrees 
D) eliminate the extra components used

Question 6

There are two types of water feeding in a boiler, they are ________ and _________

Accepted Answer

A) open feed system and closed feed system 
B) condensed and raw 
C) feed-water and clean water 
D) hot and cold water 
A) open feed system and closed feed system 
B) condensed and raw 
C) feed-water and clean water 
D) hot and cold water

Question 7

What is installed to transfer air into furnace in forced draught system?

Accepted Answer

A) air blower 
B) tuyeres 
C) draft gauges 
D) cyclone separator 
A) air blower 
B) tuyeres 
C) draft gauges 
D) cyclone separator

Question 8

In a fire tube boiler, the water to be heated is kept in the ________

Accepted Answer

A) tubes of the setup 
B) shell of the setup with hot gas in tubes 
C) tank with a fire chamber that conducts heat by steel rods 
D) tank and heated by fire below it 
A) tubes of the setup 
B) shell of the setup with hot gas in tubes 
C) tank with a fire chamber that conducts heat by steel rods 
D) tank and heated by fire below it

Question 9

Which is the most recent economical method of power generation from boilers?

Accepted Answer

A) natural circulation boiler 
B) fire tube boiler 
C) forced circulation 
D) super critical boiler 
A) natural circulation boiler 
B) fire tube boiler 
C) forced circulation 
D) super critical boiler

Question 10

An air preheater is installed ___________

Accepted Answer

A) between the economiser and chimney 
B) before the superheater 
C) before the economiser 
D) none of the mentioned 
A) between the economiser and chimney 
B) before the superheater 
C) before the economiser 
D) none of the mentioned

Question 11

Which draught system is used as conjunction with chimney draught?

Accepted Answer

A) forced steam draught 
B) forced draught 
C) induced draught 
D) balanced draught 
A) forced steam draught 
B) forced draught 
C) induced draught 
D) balanced draught

Question 12

Where is blower installed in induced draught system?

Accepted Answer

A) near the boiler 
B) base of the chimney 
C) above the boiler 
D) between economizer and air preheater 
A) near the boiler 
B) base of the chimney 
C) above the boiler 
D) between economizer and air preheater

Question 13

Which is the correct formula of total draught loss?

Accepted Answer

A) ht = hv + hb + hc + hcd 
B) ht = hv + hb - hc + hcd 
C) ht = hv - hb + hc + hcd 
D) ht = hv - hb - hc - hcd 
A) ht = hv + hb + hc + hcd 
B) ht = hv + hb - hc + hcd 
C) ht = hv - hb + hc + hcd 
D) ht = hv - hb - hc - hcd

Question 14

Which is most preferred type of draught system?

Accepted Answer

A) chimney draught 
B) fan draught 
C) force draught 
D) balanced draught 
A) chimney draught 
B) fan draught 
C) force draught 
D) balanced draught

Question 15

What is the length of shell of a Locomotive boiler?

Accepted Answer

A) 2m 
B) 3m 
C) 4m 
D) 6m 
A) 2m 
B) 3m 
C) 4m 
D) 6m

Question 16

Which of the following boilers has the highest heat transfer capacity?

Accepted Answer

A) subcritical boiler 
B) critical boiler 
C) forced circulation boiler 
D) supercritical boiler 
A) subcritical boiler 
B) critical boiler 
C) forced circulation boiler 
D) supercritical boiler

Question 17

Why boiler draught is most essential part of the thermal plants?

Accepted Answer

A) serves combustion by supplying ample amount of air 
B) helps in maintaining air ventilation 
C) required to maintain constant air flow 
D) stabilizes the boiler system 
A) serves combustion by supplying ample amount of air 
B) helps in maintaining air ventilation 
C) required to maintain constant air flow 
D) stabilizes the boiler system

Question 18

Which draught system is also known as turbine draught?

Accepted Answer

A) forced steam draught 
B) induced steam draught 
C) natural draught 
D) fan draught 
A) forced steam draught 
B) induced steam draught 
C) natural draught 
D) fan draught

Question 19

Artificial draught is also called as _______

Accepted Answer

A) force draught 
B) induced draught 
C) balanced draught 
D) mechanical draught 
A) force draught 
B) induced draught 
C) balanced draught 
D) mechanical draught

Question 20

What is the major difficulty of the La-Mont boiler?

Accepted Answer

A) unstable water circulation 
B) deposition of salts 
C) overheating of the components 
D) boiler working is slow 
A) unstable water circulation 
B) deposition of salts 
C) overheating of the components 
D) boiler working is slow

By what is natural draught produced?

Which of the following given below as the affect on amount natural draught?

Why are salts deposited on the evaporator drum?

How can exhaust gas be recovered in the induced draught?

What is feature of the Loffler boilers?

There are two types of water feeding in a boiler, they are and _

What is installed to transfer air into furnace in forced draught system?

In a fire tube boiler, the water to be heated is kept in the ________

Which is the most recent economical method of power generation from boilers?

An air preheater is installed ___________

Which draught system is used as conjunction with chimney draught?

Where is blower installed in induced draught system?

Which is the correct formula of total draught loss?

Which is most preferred type of draught system?

What is the length of shell of a Locomotive boiler?

Which of the following boilers has the highest heat transfer capacity?

Why boiler draught is most essential part of the thermal plants?

Which draught system is also known as turbine draught?

Artificial draught is also called as _______

What is the major difficulty of the La-Mont boiler?

Nozzles, Fountains, and Compressible Flow

Friction, Mach Number, and Boiler Operations

Boiler and Fuel

Turbines, Heat Exchangers, and Refrigeration Cycles

Refrigeration and Air Conditioning System Components and Processes

Cooling Systems and Nozzles in Engineering

Understanding Fluid Mechanics and Turbines

Boiler Types and Operations

Steam Boilers and Turbines: Types, Characteristics, and Applications

Understanding Steam Turbines: Ratios, Actions, and Factors

Steam Turbines and Power Cycles

Energy Recovery and Thermodynamics Processes

Condensers and Heat Transfer in Refrigeration and Air Conditioning Systems

Boiler Systems and Fluid Dynamics

Turbines, Cogeneration, Refrigeration, and Air Conditioning Systems

Filters

Exam 9: Boiler Technology and Operation: Salts, Features, Difficulties, and Draught Systems

By what is natural draught produced?

Which of the following given below as the affect on amount natural draught?

Why are salts deposited on the evaporator drum?

How can exhaust gas be recovered in the induced draught?

What is feature of the Loffler boilers?

There are two types of water feeding in a boiler, they are ________ and _________

What is installed to transfer air into furnace in forced draught system?

In a fire tube boiler, the water to be heated is kept in the ________

Which is the most recent economical method of power generation from boilers?

An air preheater is installed ___________

Which draught system is used as conjunction with chimney draught?

Where is blower installed in induced draught system?

Which is the correct formula of total draught loss?

Which is most preferred type of draught system?

What is the length of shell of a Locomotive boiler?

Which of the following boilers has the highest heat transfer capacity?

Why boiler draught is most essential part of the thermal plants?

Which draught system is also known as turbine draught?

Artificial draught is also called as _______

What is the major difficulty of the La-Mont boiler?

Nozzles, Fountains, and Compressible Flow

Friction, Mach Number, and Boiler Operations

Boiler and Fuel

Turbines, Heat Exchangers, and Refrigeration Cycles

Refrigeration and Air Conditioning System Components and Processes

Cooling Systems and Nozzles in Engineering

Understanding Fluid Mechanics and Turbines

Boiler Types and Operations

Steam Boilers and Turbines: Types, Characteristics, and Applications

Understanding Steam Turbines: Ratios, Actions, and Factors

Steam Turbines and Power Cycles

Energy Recovery and Thermodynamics Processes

Condensers and Heat Transfer in Refrigeration and Air Conditioning Systems

Boiler Systems and Fluid Dynamics

Turbines, Cogeneration, Refrigeration, and Air Conditioning Systems

Filters

There are two types of water feeding in a boiler, they are and _