Test Bank For Automotive Technology Principles, Diagnosis, and Service, 7th Edition By James Halderman, Curt Ward

All Chapters Arranged Reverse: 136-1



Automotive Technology, 7e (Halderman)
Chapter 136 Exhaust System Specialist (X1)

1) An engine makes a clicking like sound like a lifter, and all of the hydraulic lifters were
recently replaced. Which of these could be the cause?
A) Leaking catalytic converter
B) Cracked exhaust manifold
C) Cracked intake manifold
D) Clogged exhaust pipe
Answer: B
Page Ref: 1736
Objective: 136-4 Describe how to inspect the exhaust system.

2) A technician uses a vacuum gauge to check for an exhaust restriction. The vacuum is read at
idle and then at 2,000 RPM. What result would indicate an exhaust restriction?
A) Vacuum increases
B) Vacuum falls
C) Reading stays the same
D) Reading climbs very slowly
Answer: B
Page Ref: 1737
Objective: 136-4 Describe how to inspect the exhaust system.

3) Two technicians are discussing the small hole in the muffler. Technician A says that some
mufflers have a small hole located in the rear at the bottom to drain out condensed water.
Technician B says that you need to periodically drain the water using a vacuum pump. Which
technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B
Answer: A
Page Ref: 1735
Objective: 136-2 Discuss the components of an automotive exhaust system.

4) Which of these is the biggest concern when a rust hole is found in an exhaust system?
A) Exhaust gases escaping
B) High noise level
C) High exhaust emissions
D) Failing state inspection
Answer: A
Page Ref: 1736
Objective: 136-4 Describe how to inspect the exhaust system.




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,5) Which vehicle label would list emission calibration codes?
A) VIN
B) Parts and accessories label
C) VECI
D) Safety certification label
Answer: C
Page Ref: 1738
Objective: 136-6 Explain exhaust emission control systems.

6) A technician is in the process of removing the bolts on a catalytic converter. Technician A
says that a six-point socket should be used. Technician B says water pump pliers (slip joint)
should be used at slip-joint connections to hold the pipe. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor Bs A nor B
Answer: A
Page Ref: 1737
Objective: 136-5 Discuss exhaust system repairs.

7) Exhaust hangers are used to ________ vibrations in the exhaust system.
A) focus
B) isolate
C) increase
D) remove
Answer: B
Page Ref: 1735
Objective: 136-3 Describe exhaust system mounting hardware.

8) Which of these fabrication processes results in an exhaust pipe that duplicates the original
pipe?
A) Pattern bending
B) Custom bending
C) Program card bending
D) Wire bending
Answer: C
Page Ref: 1739
Objective: 136-7 Discuss the exhaust system fabrication process.

9) Which of these welding methods uses carbon dioxide or argon gas?
A) MIG welding
B) Oxy-acetylene welding
C) Arc-welding
D) All of these
Answer: A
Page Ref: 1741
Objective: 136-8 Discuss MIG welding.
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,10) Which type of flame is used for soldering?
A) Neutral
B) Oxidizing
C) Carburizing
D) Soldering
Answer: C
Page Ref: 1743
Objective: 136-10 Discuss flame types.

11) Exhaust systems that do not remove exhaust gases efficiently may have unwanted ________.
A) bends
B) backpressure
C) diameters
D) connections
Answer: B
Page Ref: 1733
Objective: 136-1 Discuss the purpose and function of an automotive exhaust system.

12) Which oxy-acetylene cylinder has the highest pressure?
A) Argon cylinder
B) Acetylene cylinder
C) Oxygen cylinder
D) Carbon dioxide cylinder
Answer: C
Page Ref: 1741
Objective: 136-9 Discuss oxy-acetylene welding.

13) Which oxy-acetylene regulator has left-hand threads?
A) Acetylene regulator
B) Oxygen regulator
C) Both have left hand threads
D) Neither has left hand threads
Answer: A
Page Ref: 1741
Objective: 136-9 Discuss oxy-acetylene welding.

14) Acetylene should never be used at a pressure that exceeds ________ PSI.
A) 250
B) 2,200
C) 40
D) 15
Answer: D
Page Ref: 1741
Objective: 136-9 Discuss oxy-acetylene welding.


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, 15) Where in the exhaust system is the catalytic converter located?
A) Between the muffler and the resonator
B) Before the muffler
C) After the muffler
D) Any of these
Answer: B
Page Ref: 1736
Objective: 136-2 Discuss the components of an automotive exhaust system.

16) Maximum exhaust system backpressure should be ________.
A) 17 to 22 in. Hg
B) about 3 PSI
C) less than 2.5 PSI
D) None of these
Answer: C
Page Ref: 1737
Objective: 136-4 Describe how to inspect the exhaust system.

17) A broken ________ that allows the powertrain to move more than intended can damage the
exhaust system.
A) mount
B) hangar
C) heat shield
D) manifold flange
Answer: A
Page Ref: 1738
Objective: 136-5 Discuss exhaust system repairs.

18) A MIG welder uses ________ when welding two pieces together.
A) hand-held electrodes
B) flux sticks
C) wire fed from a reel
D) hand-held thin wire
Answer: A
Page Ref: 1741
Objective: 136-8 Discuss MIG welding.

19) The flame type generally used for welding is the ________ flame.
A) oxidizing
B) neutral
C) carburizing
D) extended
Answer: B
Page Ref: 1743
Objective: 136-9 Discuss oxy-acetylene welding.


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