Solution and Answer Guide: Huzij/Spano/Bennett, Modern Diesel Technology: Heavy Equipment Systems, 4e, 9780357766521; Chapter 1: Safety
Solution and Answer Guide
Huzij/Spano/Bennett, Modern Diesel Technology: Heavy Equipment Systems, 4e, 9780357766521;
Chapter 1: Safety
TABLE OF CONTENTS
Review Questions..........................................................................................................2
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly 1
accessible website, in whole or in part.
,Solution and Answer Guide: Huzij/Spano/Bennett, Modern Diesel Technology: Heavy Equipment Systems, 4e, 9780357766521; Chapter 1: Safety
REVIEW QUESTIONS
1. Which of the following describes “Shake Hands with Danger”?
a. A way of life in any modern repair shop.
b. A safety video presentation made by Caterpillar.
c. A sure way of avoiding accidents.
d. Something that only beginners do.
Answer: b. A safety video presentation made by Caterpillar
2. When will a worker be more likely to be injured?
a. During the first day on the job
b. During the first year of employment
c. During the second to fourth year of employment
d. During the year before retirement
Answer: b. During the first year of employment
3. Which of the following should be used when lifting a heavy object?
a. Keep your back erect while lifting.
b. Keep the weight you are lifting close to your body.
c. Bend your legs and lift using the leg muscles.
d. All of the above.
Answer: d. All of the above
4. What is Purple K?
a. A new type of stimulant.
b. A dry powder fire suppressant.
c. A toxic gas.
d. A type of paint.
Answer: b. A dry powder fire suppressant
5. Which of the following is usually a requirement of a safety shoe or boot?
a. UL certification
b. Steel sole shank
c. Steel toe
d. All of the above
Answer: d. All of the above
6. What type of gloves are recommended by some shops when working with heavy suspension components?
a. Synthetic rubber
b. Vinyl disposable
c. Leather welding gloves
d. Gloves should never be worn when working with suspension components.
Answer: c. Leather welding gloves
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly 2
accessible website, in whole or in part.
,Solution and Answer Guide: Huzij/Spano/Bennett, Modern Diesel Technology: Heavy Equipment Systems, 4e, 9780357766521; Chapter 1: Safety
7. Which of the following is a false statement?
a. Never wear gloves when using a bench grinder.
b. Wear leather gloves during exposure to oil and fuel.
c. Disposable vinyl gloves help protect hands from being exposed to high temperatures.
d. Welding gloves harden when repeatedly working with refrigerant.
Answer: b. Wear leather gloves during exposure to oil and fuel.
8. Which type of fire can be safely extinguished with water?
a. Class A
b. Class B
c. Class C
d. Class D
Answer: a. Class A
9. When attempting to suppress a Class C fire in a chassis, which of the following is good practice?
a. Disconnect the batteries.
b. Use a carbon dioxide fire extinguisher.
c. Avoid inhaling the fumes produced by burning conduit.
d. All of the above.
Answer: d. All of the above
10. When buck riveting steel panels, which of the following personal protection items are required?
a. Safety glasses
b. Hearing protection
c. Work gloves
d. All of the above
Answer: d. All of the above
11. What sealing compound should be used on brass oxyacetylene fittings?
a. Nothing
b. Never-seize
c. Multipurpose thread sealant
d. Teflon tape
Answer: a. Nothing
12. When oxyacetylene hoses are color-coded, which color is used to indicate the oxygen hose?
a. Blue
b. Green
c. Red
d. Black
Answer: b. Green
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly 3
accessible website, in whole or in part.
, Solution and Answer Guide: Huzij/Spano/Bennett, Modern Diesel Technology: Heavy Equipment Systems, 4e, 9780357766521; Chapter 1: Safety
13. To tighten an acetylene regulator fitting, which of the following should be true?
a. Turn clockwise.
b. Turn counterclockwise.
c. Torque oxygen fitting first.
d. Ensure the regulator valve is open.
Answer: b. Turn counterclockwise.
14. Which type of oxyacetylene flame should be set for most heating and welding procedures?
a. Neutral
b. Oxidizing
c. Carburizing
d. White
Answer: a. Neutral
15. What is the maximum safe acetylene flow pressure that should be set at the regulator?
a. 5 psi
b. 15 psi
c. 105 psi
d. 150 psi
Answer: b. 15 psi
16. Technician A says that many jurisdictions have banned the use of trouble lights with incandescent bulbs
because they can ignite flammable substances. Technician B says that fluorescent trouble lights should be
used in service garages. Who is correct?
a. Technician A only
b. Technician B only
c. Both A and B
d. Neither A nor B
Answer: b. Technician B only
17. Which of the following compressed gases in a cylinder tends to be the most dangerous in the event of a
fire?
a. Oxygen
b. Acetylene
c. Propane
d. Argon
Answer: a. Oxygen
18. When performing arc welding on the rear of a piece of mobile heavy equipment, where should the ground
clamp be fixed?
a. On the front bumper
b. On the battery ground post
c. On the battery positive post
d. As close to the weld area as possible
Answer: d. As close to the weld area as possible
19. What is the minimum level of eye protection required when using an oxyacetylene cutting torch?
a. UL-rated safety goggles
b. Any shades with 100% UV protection
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly 4
accessible website, in whole or in part.
Solution and Answer Guide
Huzij/Spano/Bennett, Modern Diesel Technology: Heavy Equipment Systems, 4e, 9780357766521;
Chapter 1: Safety
TABLE OF CONTENTS
Review Questions..........................................................................................................2
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly 1
accessible website, in whole or in part.
,Solution and Answer Guide: Huzij/Spano/Bennett, Modern Diesel Technology: Heavy Equipment Systems, 4e, 9780357766521; Chapter 1: Safety
REVIEW QUESTIONS
1. Which of the following describes “Shake Hands with Danger”?
a. A way of life in any modern repair shop.
b. A safety video presentation made by Caterpillar.
c. A sure way of avoiding accidents.
d. Something that only beginners do.
Answer: b. A safety video presentation made by Caterpillar
2. When will a worker be more likely to be injured?
a. During the first day on the job
b. During the first year of employment
c. During the second to fourth year of employment
d. During the year before retirement
Answer: b. During the first year of employment
3. Which of the following should be used when lifting a heavy object?
a. Keep your back erect while lifting.
b. Keep the weight you are lifting close to your body.
c. Bend your legs and lift using the leg muscles.
d. All of the above.
Answer: d. All of the above
4. What is Purple K?
a. A new type of stimulant.
b. A dry powder fire suppressant.
c. A toxic gas.
d. A type of paint.
Answer: b. A dry powder fire suppressant
5. Which of the following is usually a requirement of a safety shoe or boot?
a. UL certification
b. Steel sole shank
c. Steel toe
d. All of the above
Answer: d. All of the above
6. What type of gloves are recommended by some shops when working with heavy suspension components?
a. Synthetic rubber
b. Vinyl disposable
c. Leather welding gloves
d. Gloves should never be worn when working with suspension components.
Answer: c. Leather welding gloves
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly 2
accessible website, in whole or in part.
,Solution and Answer Guide: Huzij/Spano/Bennett, Modern Diesel Technology: Heavy Equipment Systems, 4e, 9780357766521; Chapter 1: Safety
7. Which of the following is a false statement?
a. Never wear gloves when using a bench grinder.
b. Wear leather gloves during exposure to oil and fuel.
c. Disposable vinyl gloves help protect hands from being exposed to high temperatures.
d. Welding gloves harden when repeatedly working with refrigerant.
Answer: b. Wear leather gloves during exposure to oil and fuel.
8. Which type of fire can be safely extinguished with water?
a. Class A
b. Class B
c. Class C
d. Class D
Answer: a. Class A
9. When attempting to suppress a Class C fire in a chassis, which of the following is good practice?
a. Disconnect the batteries.
b. Use a carbon dioxide fire extinguisher.
c. Avoid inhaling the fumes produced by burning conduit.
d. All of the above.
Answer: d. All of the above
10. When buck riveting steel panels, which of the following personal protection items are required?
a. Safety glasses
b. Hearing protection
c. Work gloves
d. All of the above
Answer: d. All of the above
11. What sealing compound should be used on brass oxyacetylene fittings?
a. Nothing
b. Never-seize
c. Multipurpose thread sealant
d. Teflon tape
Answer: a. Nothing
12. When oxyacetylene hoses are color-coded, which color is used to indicate the oxygen hose?
a. Blue
b. Green
c. Red
d. Black
Answer: b. Green
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly 3
accessible website, in whole or in part.
, Solution and Answer Guide: Huzij/Spano/Bennett, Modern Diesel Technology: Heavy Equipment Systems, 4e, 9780357766521; Chapter 1: Safety
13. To tighten an acetylene regulator fitting, which of the following should be true?
a. Turn clockwise.
b. Turn counterclockwise.
c. Torque oxygen fitting first.
d. Ensure the regulator valve is open.
Answer: b. Turn counterclockwise.
14. Which type of oxyacetylene flame should be set for most heating and welding procedures?
a. Neutral
b. Oxidizing
c. Carburizing
d. White
Answer: a. Neutral
15. What is the maximum safe acetylene flow pressure that should be set at the regulator?
a. 5 psi
b. 15 psi
c. 105 psi
d. 150 psi
Answer: b. 15 psi
16. Technician A says that many jurisdictions have banned the use of trouble lights with incandescent bulbs
because they can ignite flammable substances. Technician B says that fluorescent trouble lights should be
used in service garages. Who is correct?
a. Technician A only
b. Technician B only
c. Both A and B
d. Neither A nor B
Answer: b. Technician B only
17. Which of the following compressed gases in a cylinder tends to be the most dangerous in the event of a
fire?
a. Oxygen
b. Acetylene
c. Propane
d. Argon
Answer: a. Oxygen
18. When performing arc welding on the rear of a piece of mobile heavy equipment, where should the ground
clamp be fixed?
a. On the front bumper
b. On the battery ground post
c. On the battery positive post
d. As close to the weld area as possible
Answer: d. As close to the weld area as possible
19. What is the minimum level of eye protection required when using an oxyacetylene cutting torch?
a. UL-rated safety goggles
b. Any shades with 100% UV protection
© 2025 Cengage Learning, Inc. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly 4
accessible website, in whole or in part.
