Deck 21: Piping Drawings

Question 1

Double-line piping drawings are used the majority of the time instead of single-line piping drawings.

Answer 1

False

Question 2

Threaded connectors are sometimes known as:

A) spigots
B) bells
C) flanges
D) screwed fittings

Answer 2

D

Question 3

The base metal is designed to melt during the processes of brazing and soldering.

Answer 3

False

Question 4

The symbol for a pipe is either a:

A) single or double line
B) circle or oval
C) circle or double line
D) box or double line

Question 5

Flanges are NOT available in which form?

A) Y bend
B) tee
C) cap
D) taper reducer

Question 6

A short pipe length with external threads on both ends is called a:

A) nipple
B) reducer
C) cap
D) cross

Question 7

Most valves, fittings, flanges, instruments, fixtures, special lines, and connection methods are represented by complex symbols on piping drawings.

Question 8

What is the standard method for joining two pieces of plastic pipe?

A) cementing
B) welding
C) bell and spigot connection
D) flange connection

Question 9

Pipes are commonly used structurally as support columns.

Question 10

A _____ is a complex device that controls the flow of pressurized liquids and gases.

A) return bend
B) connector
C) nipple
D) valve

Question 11

Bell and spigot connections are fitted tightly with pipe cement to make them waterproof.

Question 12

Drawings that describe the pipe material, size, and location in a piping system are assembly drawings.

Question 13

Pipe wall thicknesses are standardized by schedules of pipe weights.

Question 14

What is the most common method of joining pipes?

A) brazing
B) fittings
C) welding
D) bending

Question 15

When dimensioning pipes, you should dimension to a base datum to avoid accumulating errors.

Question 16

What type of connection is designed to enable a pipe joint to be disassembled by removing a series of bolts?

A) threaded
B) welded
C) flange
D) bell and spigot

Question 17

Pipe joints are soldered with the use of:

A) couplings
B) valves
C) granular materials
D) connectors

Question 18

Orthographic drawings are recommended for piping system layouts in which pipes lie on many different planes and angles.

Question 19

A threaded connection is considered a permanent form of pipe connection.

Question 20

In an architectural drawing, the top view of a plumbing system is labeled the _____ view.

A) elevation
B) plan
C) north
D) master

Question 21

When more than one length of pipe is required for a total run:

A) only the total length of the run is dimensioned
B) the length of each individual pipe is dimensioned
C) only pipes of the same length are dimensioned
D) a pictorial drawing must be made and no pipes are dimensioned

Question 22

Dimensions perpendicular to a pipe are located _____ in double-line drawings.

A) to the pipe line
B) to the centerline
C) to the leftmost end of the pipe
D) at any convenient point along the pipe

Question 23

Imagine that a series of pipes in a building will carry natural gas. What type of connection should be used on these pipes?

A) cemented
B) bell and spigot
C) weld
D) threaded

Question 24

Brazing is an appropriate method of joining:

A) small cast iron pipes
B) small copper pipes
C) large brass pipes
D) steel pipes of any size

Question 25

The nominal pipe size for steel pipe up to 12" is the:

A) inside diameter
B) outside diameter
C) length
D) circumference

Question 26

Threaded connections are used primarily on pipes with a diameter of _____ or less.

A) 1"
B) 1.5"
C) 2"
D) 3"

Question 27

If all pipes in a drawing are equal:

A) pipe sizes and pipe fitting sizes are both noted on the drawing
B) pipe sizes are noted on the drawing and pipe fitting sizes are provided in a general note
C) pipe fitting sizes are noted on the drawing and pipe sizes are provided in a general note
D) pipe sizes and pipe fitting sizes are both provided in a general note

Question 28

Compared to pipe object lines, dimension lines should be:

A) shorter
B) longer
C) thinner
D) thicker

Question 29

When dimensioning pipes, you should NOT:

A) use arrows to show the direction of content flow
B) label the contents of each pipe subsystem
C) use unilateral numerals for isometric dimensioning
D) chain-dimension

Question 30

Pipe schedules range from:

A) 0 to 10
B) 1 to 100
C) 5 to 125
D) 10 to 160