Question 1

What is the process involved in installing tubing?

Accepted Answer

1. When you install a length of tubing, leave the first fitting loose after threading it into the fitting. 
2. After the fitting on the other end of the line has been finger-tightened into its threads, tighten both of the flare fittings. 
3. Hold the fitting with a wrench while tightening the flare nut, and do not overtighten the fitting. 
4. After the flare is brought into contact with the fitting, turn it an additional 1/6 turn only.

Question 2

While having a discussion, Technician A says that a union is a better repair than hose for lines that carry higher pressure, above 30-35 psi. Technician B says that hose does a better job. Who is correct?

Accepted Answer

A)  A only 
B)  B only 
C)  Both A and B 
D)  Neither A nor B 
A)  A only 
B)  B only 
C)  Both A and B 
D)  Neither A nor B A

Question 3

A 45-degree SAE-type double flare is usually used with a(n) ____________________ nut.

Accepted Answer

inverted flare

Question 4

All of the following statements are true EXCEPT:

Accepted Answer

A)  there are two O-rings on the male coupling. 
B)  ferrules are used to form the threads on the outside of a pipe. 
C)  after hand-tightening pieces of pipe, tighten further a minimum of 2-1/2 turns. 
D)  pipe is cut with a pipe cutter. 
A)  there are two O-rings on the male coupling. 
B)  ferrules are used to form the threads on the outside of a pipe. 
C)  after hand-tightening pieces of pipe, tighten further a minimum of 2-1/2 turns. 
D)  pipe is cut with a pipe cutter.

Question 5

Accidentally joining two parts that have different types of threads will damage both of the threads, and a leak will probably result.

Accepted Answer

A) True 
 B)False

Question 6

The component MOST-Likely to be found on the bottom of a radiator is the:

Accepted Answer

A)  inverted flare nut 
B)  shutoff valve 
C)  long nipple 
D)  ferrule 
A)  inverted flare nut 
B)  shutoff valve 
C)  long nipple 
D)  ferrule

Question 7

Copper ____________________, which means that it gets brittle with repeated flexing.

Accepted Answer

The answer of Copper ____________________, which means that it gets...

Question 8

____________________ are used to connect tubing with parts of the brake system, fuel system, and lubrication system.

Accepted Answer

The answer of ____________________ are used to connect tubing with...

Question 9

A(n) ____________________ joins two pieces of tubing together.

Accepted Answer

The answer of A(n) ____________________ joins two pieces of tubing...

Question 10

Copper tubing should always be used for brake lines.

Accepted Answer

A) True 
 B)False

Question 11

All of the following statements are true EXCEPT:

Accepted Answer

A)  specialized compression fittings are not available for high-pressure applications. 
B)  an O-ring is an artificial rubber donut used with straight threads to seal when compressed. 
C)  O-ring connections are sometimes used to seal fittings. 
D)  compression fittings can be used with rigid plastic tubing. 
A)  specialized compression fittings are not available for high-pressure applications. 
B)  an O-ring is an artificial rubber donut used with straight threads to seal when compressed. 
C)  O-ring connections are sometimes used to seal fittings. 
D)  compression fittings can be used with rigid plastic tubing.

Question 12

Steel tubing used for brake lines is ____________________ so that it can bend easily.

Accepted Answer

The answer of Steel tubing used for brake lines is...

Question 13

Threads are either male or female. Female threads are internal and male threads are external.

Accepted Answer

A) True 
 B)False

Question 14

What are the steps involved in installing a compression fitting?

Accepted Answer

To install a compression fitting: 
1. Fi

Question 15

The part that is considered the best repair for a transmission cooler line is MOST-Likely the:

Accepted Answer

A)  ISO flare 
B)  street elbow 
C)  union 
D)  hose 
A)  ISO flare 
B)  street elbow 
C)  union 
D)  hose

Question 16

How would you remove a "hairpin" push connector?

Accepted Answer

To remove a "hairpin" push con

Question 17

What are the steps involved in performing a double flare procedure?

Accepted Answer

1.First, slip the fitting onto the line.

Question 18

Tubing is made of copper, steel, or plastic.

Accepted Answer

A) True 
 B)False

Question 19

Compression fittings should be used on high pressure applications such as brakes or power steering systems.

Accepted Answer

A) True 
 B)False

Question 20

A ____ has a section of plain pipe separating the threads.

Accepted Answer

A)  street elbow 
B)  close nipple 
C)  draincock 
D)  long nipple 
A)  street elbow 
B)  close nipple 
C)  draincock 
D)  long nipple

Exam 24: Automotive Plumbing: Tubing and Pipe

What is the process involved in installing tubing?

While having a discussion, Technician A says that a union is a better repair than hose for lines that carry higher pressure, above 30-35 psi. Technician B says that hose does a better job. Who is correct?

A 45-degree SAE-type double flare is usually used with a(n) ____________________ nut.

All of the following statements are true EXCEPT:

Accidentally joining two parts that have different types of threads will damage both of the threads, and a leak will probably result.

The component MOST-Likely to be found on the bottom of a radiator is the:

Copper ____________________, which means that it gets brittle with repeated flexing.

____________________ are used to connect tubing with parts of the brake system, fuel system, and lubrication system.

A(n) ____________________ joins two pieces of tubing together.

Copper tubing should always be used for brake lines.

All of the following statements are true EXCEPT:

Steel tubing used for brake lines is ____________________ so that it can bend easily.

Threads are either male or female. Female threads are internal and male threads are external.

What are the steps involved in installing a compression fitting?

The part that is considered the best repair for a transmission cooler line is MOST-Likely the:

How would you remove a "hairpin" push connector?

What are the steps involved in performing a double flare procedure?

Tubing is made of copper, steel, or plastic.

Compression fittings should be used on high pressure applications such as brakes or power steering systems.

A ____ has a section of plain pipe separating the threads.

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