An epicycloid is traced by a point on a circle:
Rolling inside another circle
Rolling outside another circle
Fixed at center
Stationary
A string unwinding from a circle forms:
Involute
Spiral
Ellipse
Helix
A curve on the surface of a cylinder is called:
Cycloid
Epicycloid
Spiral radius:
Remains constant
Increases or decreases
Is zero
Is fixed
The curve traced by a point on a wheel is:
Freehand sketching needs:
Drawing board
Instruments
Practice and observation
Ruler
Which sketch is used to show multiple views?
Isometric
Oblique
Orthographic
Isometric sketch uses axes inclined at:
90°
60°
30°
45°
Which view gives 3D impression?
Top view
Isometric view
Side view
Front view
Oblique sketches have:
All sides equal
Distorted depth
Vertical lines only
Angles at 90°
Scales help to represent:
Materials
Electrical circuits
Large objects in small size
Colors
Plain scales show:
1 unit
2 units
3 units
No units
What is used to draw small fractions of a unit?
Vernier scale
Diagonal scale
Plain scale
Compass
The purpose of RF is to:
Calculate angle
Show size comparison
Show material
Sketch curves
A scale showing km and miles is:
Comparative scale
Conventions are used to represent:
Color
Weight
Materials in drawing
RF
Which material is shown by hatching at 45°?
Liquid
Metal
Glass
Wood
Wood is shown by:
Solid fill
Grain lines
Zig-zag lines
Dotted lines
Concrete is represented by:
Parallel lines
Wavy lines
Dotted pattern
Stipple or dot hatching
Liquids are shown using:
Vertical lines
Solid black
Wavy horizontal lines
Which tool is best for drawing curves freehand?
Divider
French curve
T-square
To draw a 45° line, use a:
Protractor
Set square
Scale
The most common view in orthographic drawing is:
Top
Side
Front
Back
A triangle used in drawing is called:
Which sketch is fastest for idea communication?
CAD model
Freehand sketch
Blueprint
