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WorksheetsDAY 38 WORKSHEET ITI (PROJECTION - PLANE,SOLID,TYPES)
Total questions: 15
Worksheet time: 8mins
A circular lamina is perpendicular to HP, but not parallel to VP. The student sees an ellipse in elevation. What must its plan be?
Ellipse
Line
Rectangle
Distorted oval
A square lamina when projected appears as a rhombus in both plan and elevation. The lamina must be
Parallel to HP and inclined to VP
Inclined to both HP and VP
Perpendicular to HP and parallel to VP
Perpendicular to both HP & VP
If an isometric drawing of a cube shows each edge slightly shorter than the actual true length, which of the following is the PRIMARY reason?
Distortion due to plane rotation
Foreshortening caused by equal angular recession
Picture plane inclination
Cabinet scaling
A student mistakenly draws the receding edge in oblique projection full scale at 45°. The method unknowingly used by him is
Cabinet
Cavalier
General oblique
Isometric
A line is drawn such that it has no horizontal trace and no vertical trace. Which condition MUST be true?
It is perpendicular to both planes
It is parallel to both HP and VP
It lies on the XY line
It is inclined to both HP and VP
If a plane has no trace on HP, the plane must be parallel to HP.
True
False
In isometric projection, all three faces are visible and all are shown in their true size.
True
False
Assertion (A): A circular lamina never appears as a circle in isometric projection. Reason (R): Because in isometric projection, all circles are represented as ellipses.
Both A & R true, R explains A
Both A & R true, R does NOT explain A
A true, R false
A false, R true
When a plane is parallel to VP, its true shape is seen in the (a) .
When a circular lamina is inclined to both HP and VP, the final visible shape is always an (a) .
The foreshortening factor in isometric projection is approximately (a) of the true length.
If a line is parallel to VP only, it will have ________ trace but no _________ trace.
horizontal,vertical
vertical,horizontal
In perspective projection, the reference line separating the observer from the image is known as the (a) .
Match the lamina condition with its apparent projection shape:
A. Circular lamina ⟂ both HP & VP - 2. Line
B. Square lamina inclined to both planes - 1. Rhombus
C. Circular lamina ⟂ HP & inclined to VP - 4. Ellipse
D. Square lamina ⟂ VP & inclined to HP - 3. Rectangle
A→1, B→2, C→4, D→3
A→2, B→1, C→4, D→3
A→2, B→4, C→1, D→3
A→2, B→1, C→3, D→4
Match the projection method with its characteristic:
A. Cabinet projection - 2. Receding edges drawn at half scale
B. Cavalier projection - 1. Receding edges drawn full size
C. General oblique - 4. Variable angle & scale factor (q)
D. Isometric projection - 3. Equal foreshortening along all axes
A→1, B→2, C→4, D→3
A→2, B→4, C→1, D→3
A→2, B→1, C→3, D→4
A→2, B→1, C→4, D→3
