Discussion
For that same 50 mm circle, the minor axis of the ellipse is about
Answer: B
The minor axis of an isometric ellipse is a fixed fraction of the major axis, the ratio being \[ \frac{\text{minor}}{\text{major}} \;=\; \frac{1}{\sqrt{3}} \;=\; 0.577. \]
The major axis of the drawing was 61.25 mm, so
\[ \text{minor axis} \;=\; 0.577 \times 61.25 \;=\; 35.36 \;\approx\; 35.4\ \mathrm{mm}, \]
which is the circle's diameter times \( 0.707 \):
\[ 0.707 \times 50 \;=\; 35.4\ \mathrm{mm}. \]
The 28.9 mm offered as a distractor is \( 0.577 \times 50 \), the minor axis belonging to the true isometric projection rather than to the drawing.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development