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Flashcards in Basic drawings and symbols Deck (21)
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0

What is the purpose of drawing?

Drawings are a means of visual communication to transfer information between people

1

What size is AO paper?

It is 1 square metre in area

2

If AO was folded twice what size would it be?

It will become A2 size

3

What is important about a margin?

It is important because everything inside it forms part of any contract

4

What is the title block? Give 4 pieces of information contained in it?

The title block is located within the border. Four prices contained in it are
Project title
The subject
Scale
Job number
Dates of any revisions

5

What is the purpose of a scale ruler?

To take measurements from a drawing

6

What size are block plans?

Block plans are 1:2500

7

What size are site plans?

Site plans are between 1:500 and 1:2500

8

What size are general location drawings?

General location drawings are 1:200 or 1:100

9

What is the work of a plumber often referred to as?

Mechanical services

10

What type of work does a mechanical services engineer carry out? List 6

Hot and cold water services
Central hearing installations
Air conditioning pipework
Compressed airlines
Oil and has supply lines
Above and below drain services

11

Pipes at low level are shown as?

___________

12

Pipes at high level are shown as?

__ . __ . __ . __

13

What is meant by RTA

Rise to above

14

List two items of information contained in a specification?

The spacing of brackets
The type of radiators

15

What I the advantage of a specification?

When pricing a job the specified standards must be followed. This ensures that no one can use sub standard materials too keep a price low

16

How are pipes identified when insulated?

A system of colour coding has been designed to identify the pipe work

17

What colour is un-treated water?

It is green

18

What colour is natural gas pipework?

It is yellow

19

What three views are shown in the orthographic projection?

Plan
Elevation
End view

20

How are all 3 views shown on one drawing?

The plan is an outline of the object when viewed from above
The elevation is what is seen when looking from the front
The end view shows the view from one of the ends