Unit 2

Question 1

in its antique
form, a kind of multipurpose desk which can be used for any type of drawing, writing or
impromptu sketching on a large sheet of paper or for reading a large format book or
other oversized document or for drafting precise technical illustrations.

Answer 1

Drafting Table/ board

Question 2

both ends of the board were cleats-known as

Answer 2

Working edge

Question 3

is a tool shaped like a letter T, and that is used to draw parallel lines and right
angles. It used as a guide in making horizontal
lines and to provide an edge against which the triangles. When making horizontal lines,
the direction should be from left to right (if right-handed) and right to left (if left-handed).
Technically, the rule is called the blade attached to one end, and the cross piece is
known as the head. These parts are the “working edge,” which worked on the drawing
table/board.

Answer 3

T-Square

Question 4

Parts of T-square?

Answer 4

Head
Working edge
Blade

Question 5

Types of T-Square Head?

Answer 5

Fixed Tsquare
Adjustable Tsquare
Detachable Tsquare

Question 6

They are made of plastic and usually transparent to show the other side
of the drawing. _______ used in combination with the T-square for making vertical
lines and respective angles.

Answer 6

Triangles

Question 7

Triangle 📐 degree?

Answer 7

45°×45°×90°
30°×60°×90°

Question 8

the essential tool of a draftsman. The hexagonal shape is
ergonomically designed to fit the thumb, forefinger and the second finger and to prevent
them from rolling off the table

Answer 8

Pencil

Question 9

What type of clay is the pencil lead made of?

Answer 9

Kaolin

Question 10

What is the meaning of the number labelled in the pencil? 1, 2 and 3

Answer 10

1 is the softest
2 is the medium
3 is the hardest

Question 11

Classification of pencil according to groups

Answer 11

1. Hard from 4H to 9H
2. Medium from B to 3H
3. Soft from 2B to 7B

Question 12

Is used to re-point a pencil when it becomes dull. It is made up of a
small thin piece of wood with a beautiful piece of sandpaper pasted on it.

Answer 12

Sanding pad/ pencil pointer

Question 13

used in attaching drawing paper on the drawing table

Answer 13

Fastener

Question 14

used to reproduce the dimensions of an object to full size on the drawing to
enlarge or reduce them to some regular proportions.

Answer 14

Scale

Question 15

Mostly used by Mechanical Engineers

Answer 15

Mechanical scale

Question 16

is a semicircular instrument for measuring and constructing angles (The
Grolier International Dictionary: 1981). The scale divided into 180 equal parts, each of
which is called degree (°).

Answer 16

Protractor

Question 17

Is an object, typically a piece of soft rubber or plastic used to rub out
something written

Answer 17

Eraser

Question 18

is a thin sheet of celluloid or steel. It contains varied shapes of holes
which make it possible to protect neighbouring lines when erasing by fitting the exact
way of the opening to the form of the mistake. It made of tempered spring steel which
will resist wear and tear and springs back flat after being bent.

Answer 18

Erasing shield

Question 19

made of fine animal hair which used to remove or brush way rubber
crumbs and loose dirt particles that collect on a drawing

Answer 19

Dusting Brush

Question 20

composed of finely ground carbon in suspension with natural or synthetic
gum added to make the suspension mixture waterproof.

Answer 20

Drawing ink

Question 21

are used to hold the speedball pens and other lettering pens while
making a freehand drawing.

Answer 21

Penholder and p
Penpoints

Question 22

is a thin, translucent material commonly called “vellum.” It is a
transparent paper upon which copies or tracing of drawing made to reproduce them by
blueprint or by other similar processes.

Answer 22

Tracing Paper

Question 23

are layman’s name for compasses.

Answer 23

Case Instruments