Complete Test Bank Heat Exchangers Chapter 20

Introduction to Process Technology (NAPTA)

Chapter 20 Heat Exchangers

1) What is the most common type of heat exchanger?

A) Shell and tube

B) Fin fan

C) Reboiler

D) Double pipe

Page Ref: 274

Objective: 20.1 Describe the purpose and major types of heat exchangers in the process industries

Blooms Level: Remember

2) What shell and tube heat exchanger can accommodate a slightly larger heat differential?

A) Single pass shell exchanger

B) Floating head heat exchanger

C) Multipass heat exchanger

D) U-tube exchanger heat exchanger

Page Ref: 275

Objective: 20.1 Describe the purpose and major types of heat exchangers in the process industries

Blooms Level: Understand

3) What is used for the largest temperature differentials?

A) Single pass shell exchanger

B) Floating head heat exchanger

C) Multipass heat exchanger

D) U-tube exchanger heat exchanger

Page Ref: 275

Objective: 20.1 Describe the purpose and major types of heat exchangers in the process industries

Blooms Level: Understand

4) What type of heat exchanger is air-cooled and works like a radiator in a car?

A) Reboiler

B) Fin fan

C) Plate and frame

D) Double pipe

Page Ref: 276

Objective: 20.1 Describe the purpose and major types of heat exchangers in the process industries

Blooms Level: Understand

5) What type of heat exchanger has a series of thin plates separating the two fluids?

A) Reboiler

B) Fin fan

C) Plate and frame

D) Double pipe

Page Ref: 276

Objective: 20.1 Describe the purpose and major types of heat exchangers in the process industries

Blooms Level: Understand

6) What component of a heat exchanger is a group of fixed or parallel tubes through which process fluids are circulated?

A) Baffles

B) Tube sheet

C) Tube bundle

D) Spacer rods

Page Ref: 277

Objective: 20.2 Identify the primary parts of a typical shell and tube heat exchanger

Blooms Level: Understand

7) What component of a heat exchanger are partitions located inside a shell and tube heat exchanger that increase turbulent flow and reduce hot spots?

A) Baffles

B) Tube sheet

C) Tube bundle

D) Spacer rods

Page Ref: 277

Objective: 20.2 Identify the primary parts of a typical shell and tube heat exchanger

Blooms Level: Understand

8) What component of a heat exchanger holds the tubes in a tube bundle apart so they do not touch one another?

A) Baffles

B) Tube sheet

C) Tube bundle

D) Spacer rods

Page Ref: 277

Objective: 20.2 Identify the primary parts of a typical shell and tube heat exchanger

Blooms Level: Understand

9) What is the flow of heat through a solid?

A) Convection

B) Conduction

C) Radiation

D) Laminar

Page Ref: 277

Objective: 20.3 Describe the principles of operation of a typical shell and tube heat exchanger

Blooms Level: Understand

10) In what flow pattern do both materials flow in the same direction?

A) Parallel

B) Cross flow

C) Counter flow

D) Exchange flow

Page Ref: 278

Objective: 20.3 Describe the principles of operation of a typical shell and tube heat exchanger

Blooms Level: Understand

11) In what flow pattern do the two materials enter the exchanger at separate ends and flow against each other in a counter flow?

A) Parallel

B) Cross flow

C) Counter flow

D) Exchange flow

Page Ref: 278

Objective: 20.3 Describe the principles of operation of a typical shell and tube heat exchanger

Blooms Level: Understand

12) What is the ideal flow type in a heat exchanger?

A) Laminar

B) Turbulent

C) Parallel

D) Cross flow

Page Ref: 280

Objective: 20.3 Describe the principles of operation of a typical shell and tube heat exchanger

Blooms Level: Understand

13) Which of the following is a benefit of baffles?

A) They support the tubes

B) They increase turbulent flow and heat transfer rates

C) They reduce hot spots

D) All of the above

Page Ref: 280

Objective: 20.3 Describe the principles of operation of a typical shell and tube heat exchanger

Blooms Level: Understand

14) What application of heat exchangers is used to supply the necessary column heat?

A) Reboiler

B) Preheater

C) Chiller

D) Condenser

Page Ref: 280

Objective: 20.4 Describe the different applications of typical heat exchangers

Blooms Level: Understand

15) What application of heat exchangers is used to remove from the system excess heat that is generated by the process?

A) Chiller

B) Aftercooler

C) Preheater

D) Condenser

Page Ref: 280

Objective: 20.4 Describe the different applications of typical heat exchangers

Blooms Level: Understand

16) Which improper operation can lead to exposure to chemicals or steam?

A) Putting the exchanger online with the bleeder valve open on process side

B) Applying heat to the exchanger without following the proper warm-up procedure

C) Operating a heat exchanger with ruptured tubes

D) All of the above

Page Ref: 281

Objective: 20.5 Discuss the hazards associated with the improper operation of a heat exchanger

Blooms Level: Understand

17) What equipment hazard can result from the improper operation of alignment?

A) Metal stress from thermal shock

B) Overheating, tube fouling, or melting

C) Possible damage if the safety valve is not working properly

D) Overpressurizing the heat exchanger

Page Ref: 281

Objective: 20.5 Discuss the hazards associated with the improper operation of a heat exchanger

Blooms Level: Understand

18) Which improper operation can lead to spill to the environment?

A) Putting the exchanger online with the bleeder valve open on process side

B) Applying heat to the exchanger without following the proper warm-up procedure

C) Operating a heat exchanger with ruptured tubes

D) All of the above

Page Ref: 281

Objective: 20.5 Discuss the hazards associated with the improper operation of a heat exchanger

Blooms Level: Understand

19) What should a process technician inspect when a heat exchanger is disassembled?

A) Leaky tubes

B) Tube sheet

C) Divider plate

D) All of the above

Page Ref: 282

Objective: 20.6 Describe the monitoring and maintenance activities associated with a heat exchanger

Blooms Level: Understand

20) What is designed to remove fouling in cooling water with bursts of compressed air?

A) Back-flushing

B) Back-rushing

C) Air-rumble

D) Air-flushing

Page Ref: 282

Objective: 20.6 Describe the monitoring and maintenance activities associated with a heat exchanger

Blooms Level: Understand

21) Which of the following is a heat exchanger symbol for a condenser?

A)

B)

C)

D)

Page Ref: 283

Objective: 20.6 Describe the monitoring and maintenance activities associated with a heat exchanger

Blooms Level: Understand