Deck 21: Use of Symbols

Question 1

Draw the symbol for a union fitting.

Answer 1

Figure 21-7 (Refer to RCA: Basic Principles for Construction, 4E)

Question 2

Draw the symbol for a convenience outlet.

Answer 2

Figure 21-6 (Refer to RCA: Basic Principles for Construction, 4E)

Question 3

A __________ dimension is an approximate size and may not represent any of the actual dimensions of the object.

Answer 3

nominal

Question 4

Which of the following is NOT a type of hinged window?

A) fixed
B) awning
C) casement
D) hopper

Question 5

Which of the following systems is usually NOT shown in much detail on drawings for single-family homes?

A) wall
B) mechanical
C) basement
D) roof

Question 6

Draw the symbol for a gas line.

Question 7

Which of the following is NOT a basic way for household doors to open?

A) swing
B) retract
C) slide
D) fold

Question 8

The abbreviation for "reinforced" is __________.

Question 9

Which of the following is the largest opening measurement given for a window?

A) masonry
B) sash
C) rough
D) glass size

Question 10

The abbreviation DIA. means __________

Question 11

The abbreviation FOUND. means __________.

Question 12

When a large area is made up of one material, it is common to only draw the symbol in a part of the area. Some drafters simplify this even further by __________ and omitting the symbol altogether.

Question 13

The abbreviation EXT. stands for __________.

Question 14

Draw the symbol for a fixed window (plan view).

Question 15

Explain why symbols are used on construction drawings.

Question 16

Draw the symbol for a thermostat.

Question 17

Reference marks, called __________, indicate on plans and elevations where details or sections of important features have been drawn.

Question 18

Draw the symbol for a wall light fixture.

Question 19

A short line, or __________, represents the joint between the pipe and the fitting on plumbing plans.

Question 20

Draw the symbol for a 90 ° elbow.