Deck 23: Rough-In Sheets, Single Line Drawings, and Isometric Drawings

Question 1

Rough-in sheets provide a basis for understanding between all parties of a particular item to be installed on the job.

Answer 1

True

Question 2

Reviewing plans before pre-build meetings can prevent costly conflicts in work.

Answer 2

True

Question 3

Single line drawings differ from rough-in sheets in that a single line drawing indicates the complete system, while a rough-in sheet shows individual items.

Answer 3

True

Question 4

Which type of drawing shows renderings of the specific product, its dimensions and installation arrangements?

A) single line drawing
B) exploded view
C) isometric view
D) rough-in sheet

Question 5

Variations permissible in certain installation dimensions are called

A) variation ratios.
B) allowances.
C) tolerances.
D) average variations.

Question 6

The purpose of the pipe (vent, drain, etc.) is usually represented by its line type.

Question 7

Fixture symbols used in single line drawings are simple pictorial sketches of the items they represent.

Question 8

All dashed lines on industrial drawings are vent lines.

Question 9

If there is any variation between the building plans and the rough-in sheets, the dimensions from the rough-in sheets should be followed.

Question 10

The drawing of the installation should be kept in the job file for future reference.

Question 11

Which of the following is NOT a feature of a rough-in sheet?

A) assists in determining required clearances for the product
B) assists the technician in making a proper rough-in for satisfactory connections to the product
C) assists the designer in selecting and specifying the best product for an application
D) assists the technician in locating the proper location in the building for the rough-in

Question 12

The abbreviation for medical compressed air is MA.

Question 13

The principal use of rough-in sheets is to provide sufficient information to correctly prepare the job for the item described.

Question 14

Old gas lines do not need to be purged before cutting them for removal.

Question 15

Rough-in sheets describe in general terms similar products made by multiple manufacturers.

Question 16

The plan view of a set of drawings can be referenced for installation heights of fixtures.

Question 17

The abbreviation for fire protection water supply is F.

Question 18

The abbreviation for cold water is CW.

Question 19

To ensure proper installation of products in the finished job, it is important to go over rough-in sheet details with other trade technicians on the project.

Question 20

The abbreviation for a gas vent is GV.

Question 21

What is the highest priority in installing fixtures in penal institutions?

A) security
B) cost
C) durability of the fixtures
D) ability to clean fixtures

Question 22

When there is a discrepancy between the building prints and the job site, you should ____.

A) notify your supervisor immediately
B) choose the option that saves your company money
C) keep working and hope no one notices
D) use your best judgment and keep working

Question 23

What is the abbreviation for subsoil drain?

A) SD
B) SSD
C) SS
D) CWS

Question 24

If you wanted to know the height between floors, which view would you use?

A) plan
B) elevation
C) oblique
D) isometric

Question 25

If a line measures 6- $\frac{1}{2}$ inches on a drawing that is made at a scale of $\frac{1}{4}$ " = 1', how long will that line measure when constructed?

A) 24 feet
B) 26 feet
C) 28 feet
D) 30 feet

Question 26

What is the symbol for deionized water?

A) DE
B) DI
C) DW
D) DD

Question 27

What information might be found on a water closet rough-in?

Question 28

Where can rough-in sheets be obtained for a specific product?

Question 29

Rough-in sheets are

A) created by the engineer for the specific job site.
B) created by the manufacturer of the product.
C) drawn by the wholesaler.
D) drawn by the plumber.

Question 30

In a single line drawing, which of the following would indicate hot water piping?

A) long segment, space, short segment, space, etc.
B) long segment, space, short segment, short segment, space, etc.
C) solid line
D) dashed line

Question 31

A hospital will typically have the following special fixtures EXCEPT

A) sitz baths.
B) leg tubs.
C) surgeon's sinks.
D) bedpan washers.

Question 32

If a line on a drawing measures 4-3/4 inches and the scale is $\frac{1}{8}$ " = 1', how long will that line be when constructed?

A) 34 feet
B) 36 feet
C) 38 feet
D) 40 feet

Question 33

In a single line drawing, the note VTR means

A) vent through riser.
B) vent through roof.
C) vitreous china riser.
D) vent into the roof.

Question 34

Who is responsible for approving rough-in sheets?

Question 35

What is meant by "finished wall" on a rough-in sheet?