Duty Diesels, 2nd Edition Sean Bennett
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,Name: Class: Date:
Chapter 01 - Shop and Personal Safety
1. What agency is responsible for certifying safety boots and shoes?
a. U.S. Government
b. Your employer
c. EPA
d. Underwriters Laboratories (UL) or Canadian Safety Association (CSA)
ANSWER: d
POINTS: 1
REFERENCES: 2
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 1:34 PM
2. What type of equipment are safety glasses, splash goggles, and face shields?
a. Eye protection
b. Shop uniforms
c. Eyewear
d. Welding equipment
ANSWER: a
POINTS: 1
REFERENCES: 3
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 11:17 AM
3. Which situation most often results in hearing loss in a shop environment?
a. An individual incident
b. Improperly maintained air tools
c. Years of exposure to repetitive and excessive noise levels
d. Shop noise exceeding 160 decibels
ANSWER: c
POINTS: 1
REFERENCES: 4
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:08 PM
4. What type of glove should be used to handle dangerous acids or alkalines?
a. Leather gloves
b. Any glove that covers the entire hand
c. Vinyl disposable gloves
d. Hazardous materials gloves
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,Name: Class: Date:
Chapter 01 - Shop and Personal Safety
ANSWER: d
POINTS: 1
REFERENCES: 4
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:09 PM
5. How do you avoid injury when lifting heavy items?
a. Lift with only your arms.
b. Keep your back vertical while lifting.
c. Bend over the center of the object.
d. Keep your legs straight.
ANSWER: b
POINTS: 1
REFERENCES: 4
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/5/2021 1:33 PM
6. Why is clothing made from artificial fibers dangerous in a shop environment?
a. It can melt onto skin if saturated with petroleum products.
b. They react with oils and break down.
c. Even when treated with fire retardant, they can burn when exposed to direct flame.
d. It will gas when in warm environments.
ANSWER: c
POINTS: 1
REFERENCES: 5
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 10:31 AM
7. Why are butane lighters dangerous in a shop environment?
a. Metal parts can cause electrical shorts.
b. Butane reacts explosively with certain automotive fluids.
c. Most butane lighters leak.
d. They pose an extreme explosive risk.
ANSWER: d
POINTS: 1
REFERENCES: 5
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
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,Name: Class: Date:
Chapter 01 - Shop and Personal Safety
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 10:32 AM
8. What is the purpose of the LOTO (lockout/tagout) procedure?
a. Identify potential explosives on the shop floor.
b. Minimize the potential of accidents during servicing.
c. Remove unsafe technicians from the shop floor.
d. Disable door locking mechanism during servicing.
ANSWER: b
POINTS: 1
REFERENCES: 6
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/7/2021 10:34 AM
DATE MODIFIED: 1/7/2021 1:18 PM
9. What class of fire extinguisher should be used on a grease or fuel fire?
a. Class A
b. Any class available
c. Class C or D
d. Class B
ANSWER: d
POINTS: 1
REFERENCES: 7
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:10 PM
10. What should you do before using unfamiliar shop equipment?
a. Ask for help/training on the equipment.
b. Have the manual available and read it when you make an error.
c. Demand certification training from your employer.
d. Proceed slowly.
ANSWER: a
POINTS: 1
REFERENCES: 7
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 11:06 AM
11. What precautions should be taken before working under hydraulic hoists?
a. Make sure the hydraulic valves are in the proper positions.
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,Name: Class: Date:
Chapter 01 - Shop and Personal Safety
b. Make sure all electrical controls are stopped.
c. Make sure it is mechanically supported.
d. Make sure it clears your head while standing erect.
ANSWER: c
POINTS: 1
REFERENCES: 7
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 11:07 AM
12. Which of the following best describes a bottle jack?
a. Hand-actuated and rated to lift loads up to 10 tons
b. Made for heavy lifting
c. Hand-actuated and made only for loads under 1 ton
d. Air-operated light-duty jacks
ANSWER: a
POINTS: 1
REFERENCES: 8
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:15 PM
13. In what situation can a hydraulic boom hoist be used?
a. Only for lifting transmissions and engines
b. As a replacement for a hydraulic lift
c. Only light weight lifting under 100 lbs
d. Both light and heavy duty lifting jobs
ANSWER: d
POINTS: 1
REFERENCES: 9
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:16 PM
14. For what purpose are come-alongs most often used?
a. Lifting engines
b. To apply straight line force to an object
c. Separating heads from blocks
d. Dragging engine blocks
ANSWER: b
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,Name: Class: Date:
Chapter 01 - Shop and Personal Safety
POINTS: 1
REFERENCES: 10
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:16 PM
15. Why should technicians use caution when working on vehicles equipped with diesel particulate filters
(DPFs)?
a. They operate at high temperatures and retain heat after operation.
b. There is an explosion danger because they burn fuel.
c. They operate at extreme pressures.
d. Ash residue is highly toxic.
ANSWER: a
POINTS: 1
REFERENCES: 10
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 11:19 AM
16. What should you always do when operating, connecting, or disconnecting pneumatic tools?
a. Wear a full face shield.
b. Stay away from hot engines or exhaust.
c. Wear safety glasses.
d. Wear the proper type of gloves.
ANSWER: c
POINTS: 1
REFERENCES: 11
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:17 PM
17. On a typical shop pneumatic system what two tasks should be performed daily?
a. Check hoses for cracks or nicks.
b. Test the operating pressure.
c. Purge all hoses and tanks.
d. Air tool oiling and draining of accumulated water.
ANSWER: d
POINTS: 1
REFERENCES: 11
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
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,Name: Class: Date:
Chapter 01 - Shop and Personal Safety
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 11:20 AM
18. What should be used when working on chassis electronic circuits?
a. Spark shielded gloves
b. Ground strap
c. Full anti-static coveralls
d. Grounding jumpers to ground
ANSWER: b
POINTS: 1
REFERENCES: 12
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:18 PM
19. What is the maximum pressure acetylene regulator gauges should be set at?
a. 15 psi (100 kPa)
b. 30 psi (200 kPa)
c. 100 psi (700 kPa)
d. 10 psi (70 kPa)
ANSWER: a
POINTS: 1
REFERENCES: 14
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 11:22 AM
20. Why should oxygen tank valves be fully opened when in use?
a. To provide sufficient oxygen pressure.
b. To prevent inadvertently increasing oxygen after a flame is set.
c. It will prolong the service life of the valves.
d. Oxygen will leak past valve threads on a partially opened valve.
ANSWER: d
POINTS: 1
REFERENCES: 14
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 11:23 AM
21. What two gauges are used on pressure regulator assemblies?
a. High and low pressure
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,Name: Class: Date:
Chapter 01 - Shop and Personal Safety
b. Oxygen and fuel
c. Cylinder pressure and working pressure
d. Cylinder pressure and ambient pressure
ANSWER: c
POINTS: 1
REFERENCES: 14
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:18 PM
22. Technician A states that static discharge is usually not an issue in a shop environment because of
cement floors and rubber-soled footware. Technician B states that when working on vehicle electronic
circuits you should always wear a grounding strap as a precaution. Which technician is correct?
a. Technician A only
b. Technician B only
c. Both A and B
d. Neither A nor B
ANSWER: c
POINTS: 1
REFERENCES: 12
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:19 PM
23. Technician A states that oxygen is a nonflammable gas that can be safely used and stored in a shop
environment. Technician B states that oxygen can be used as an alternative to compressed air. Which
technician is correct?
a. Technician A only
b. Technician B only
c. Both A and B
d. Neither A nor B
ANSWER: a
POINTS: 1
REFERENCES: 14
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:40 AM
DATE MODIFIED: 1/7/2021 2:19 PM
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, Name: Class: Date:
Chapter 02 - Introduction to Diesel Engines
1. Which of the following best describes a diesel engined work truck?
a. On-highway vocational automotive diesel
b. Off-highway light duty diesel
c. Spark ignition (SI) light duty diesel
d. Light duty passenger diesel
ANSWER: a
POINTS: 1
REFERENCES: 20
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:41 AM
DATE MODIFIED: 1/7/2021 2:21 PM
2. Technician A states that computer controls are required to meet EPA emission standards. Technician B
states that all current highway diesel engines are computer controlled. Which technician is correct?
a. Technician A only
b. Technician B only
c. Both A and B
d. Neither A nor B
ANSWER: c
POINTS: 1
REFERENCES: 20
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:41 AM
DATE MODIFIED: 1/7/2021 12:43 PM
3. What class of diesel engines recently became regulated by the EPA (Environmental Protection
Agency)?
a. All light duty diesel engines with less than 8 liters displacement
b. Light duty diesel engines used only as work vehicles
c. The current lineup of Detroit's pickup truck work diesels
d. Off-highway light duty diesels
ANSWER: d
POINTS: 1
REFERENCES: 20
QUESTION TYPE: Multiple Choice
HAS VARIABLES: False
DATE CREATED: 1/5/2021 9:41 AM
DATE MODIFIED: 1/7/2021 2:21 PM
4. Why is the term CI commonly used as an acronym for diesel engines?
a. All diesel engines use this fuel ignition method.
b. Diesel engines compress a rich air/fuel mixture before igniting it with glow plugs.
c. Older spark-ignited diesel engines are no longer manufactured and CI is the new standard.
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