Exam 21: Use of Symbols

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

Explain why symbols are used on construction drawings.

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

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

Draw the symbol for a gas line.

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

Draw the symbol for a thermostat.

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

Draw the symbol for a wall light fixture.

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

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

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

The abbreviation for "reinforced" is __________.

The abbreviation FOUND. means __________.

Draw the symbol for a union fitting.

Draw the symbol for a convenience outlet.

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.

The abbreviation DIA. means __________

The abbreviation EXT. stands for __________.

Draw the symbol for a 90 ° elbow.