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BUILDING DRAWING > INSTRUMENTS 2 > Flashcards

INSTRUMENTS 2 Flashcards

1
Q

What is a protractor?

A

Instrument used for measuring & setting angles which can’t be obtained by setsquares -

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2
Q

What are the common types of protractors?

A

0-180-degree semicircular protractor &
0-360-degree circular protractor

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3
Q

What is the least count of a protractor?

A

The least count of a protractor is 1 degree.

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4
Q

What is a compass?

A

A compass is an instrument used for drawing circles and arcs of circles.

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5
Q

A large bow compass

A

A large bow compass is used to draw circles up to 200 mm radius.

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6
Q

A spring bow compass

A

A spring bow compass is used to draw circles up to 25 mm radius.

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7
Q

Drop Spring Bow Compass

A

Instrument used to draw circles of very small radius

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8
Q

What is used with the large compass to draw circles greater than 200 mm radius?

A

A lengthening bar is used with the large compass to draw circles greater than 200 mm radius.

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9
Q

What is a beam compass and how does it work?

A

A beam compass consists of a beam made of steel or wood, with a steel point used as the center. The compass point (pencil/pen) is adjustable, allowing the drawing of large circles and arcs. The divider and pencil points are replaceable in adjustable holders. The pens can also adjust the thickness of the lines.

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10
Q

what is Divider

A

Instrument used for dividing curved or straight lines into any number of equal parts

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11
Q

what is Divider 2

A

Instrument used for Stepping/ transferring dimension from one point to another

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12
Q

what is Divider 3

A

Instrument used for Setting dimensions from scale to drawing

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13
Q

Bow divider

A

For transferring for dimension up to 25 mm radius

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14
Q

large divider

A

For transferring for dimension more than 25 mm radius

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15
Q

Proportional dividers

A

Instrument used for reducing or enlarging drawing from an available drawing without converting numerical values

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16
Q

Template

A

Thin flat piece of celluloid where drawing shapes like circles, arc, ellipses, triangles, polygons etc are cut into it

17
Q

Stencil

A

Thin flat piece of celluloid where letters and numerals are cut into it -

18
Q

French curve

A

Instrument used to draw irregular curves

19
Q

Flexible Curves

A

Instrument used to draw any shape

20
Q

Inking pen is used for drawing ?

A

Straight lines

BUILDING DRAWING (4 decks)

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