Deck 24: Automotive Plumbing: Tubing and Pipe

Question 1

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

Answer 1

A

Question 2

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

Answer 2

double-walled

Question 3

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

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

Answer 3

C

Question 4

10)Which of the following statements is LEAST-Likely true?

A) Pipes can be joined together with a coupling.
B) A small length of pipe with male threads on each end is called a nipple.
C) When one pipe is joined to two other pipes, the fitting is called a "V".
D) A female pipe coupling that makes a turn is called an elbow.

Question 5

1)Tubing is made of copper, steel, or plastic.

Question 6

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

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

Question 7

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

Question 8

8)A(n) ____ is used when a sharp turn is made.

A) tubing
B) flare fitting
C) connector
D) elbow

Question 9

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

Question 10

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

Question 11

15)All of the following statements are true EXCEPT:

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 12

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

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

Question 13

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

Question 14

2)Copper tubing should always be used for brake lines.

Question 15

7)Which of the following statements is LEAST-Likely true?

A) Copper-plated sheet steel is used to make the tubing used for brake lines.
B) Seamless tubing is one type of tubing made by rolling the steel sheet until it has two layers and one seam, providing a double wall.
C) Sometimes the outside of brake tubing is surrounded by a coil of wire.
D) Most brake tubing used on automobiles has an I.D. of 3/16" (4.76 mm).

Question 16

6)Technician A says that tubing's size is determined by its inside diameter (I.D.). Technician B says that pipe thread size is sized by its inside diameter (I.D.), and tubing's size is determined by its outside diameter (O.D.). Who is correct?

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

Question 17

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

Question 18

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

Question 19

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

Question 20

9)All of the following statements are true EXCEPT:

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 21

24)How would you remove a "hairpin" push connector?

Question 22

21)What are the steps involved in installing a compression fitting?

Question 23

23)What is the process involved in installing tubing?

Question 24

25)How would you remove a "duckbill" connector?

Question 25

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