For orthographic projections, BIS recommends the following projections.
For orthographic projections, BIS recommends the following projections. Correct Answer First-angle projection
For orthographic projections, BIS recommends the First-angle projection.
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First angle projection |
Third-angle projection |
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The object is kept in the first quadrant |
An object is assumed to be kept in the third quadrant |
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Object lies between the observer and the plane of the projection |
A plane of projection lies between the observer and the object |
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The plane of projection is assumed to be Non-transparent |
The plane of projection is assumed to be transparent. |
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Front (elevation) view is drawn above the XY line |
Front (elevation) view is drawn below the XY line |
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Top (plan) view is drawn below the XY line |
Top (plan) view is drawn above the XY line |
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Left view is projected on the right plane and vice versa |
Left view is projected on the left plane itself |
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Followed in India, European countries |
Followed in the USA |
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