Allied & ICAR Exam Bank • ALLIED_2432MCQ • 2 Marks
Section 8: General Aptitude
Analytical & Spatial Aptitude
Subtopic: Spatial Reasoning & 3D Representations
Question Statement:
A block has an internal through-hole of diameter d drilled vertically from top to bottom. In the Front View (elevation), how is this hole conventionally represented in an engineering drawing?
Options:
(A) Two dashed (hidden) parallel vertical lines spaced by distance d
(B) A solid dark circle of diameter d
(C) A hatched cross
(D) It is omitted entirely
Answer Key:
A
Step-by-Step Solution & Explanation
Internal hidden edges that cannot be directly seen from the exterior front perspective are represented by dashed lines (hidden feature lines) spaced by diameter d.