Allied & ICAR Exam Bank • ALLIED_1944MCQ • 2 Marks
Section 8: General Aptitude
Analytical & Spatial Aptitude
Subtopic: Spatial Reasoning & 3D Representations
Question Statement:
An asymmetric turbine blade profile is subjected to successive rotations in a plane: first by 120 degrees counter-clockwise, then by 210 degrees clockwise, and finally by 45 degrees counter-clockwise. What single rotation is equivalent to this sequence?
Options:
(A) 45 degrees clockwise
(B) 45 degrees counter-clockwise
(C) 135 degrees clockwise
(D) 90 degrees counter-clockwise
Answer Key:
A
Step-by-Step Solution & Explanation
Taking CCW as positive: +120 - 210 + 45 = -45 degrees, which corresponds to 45 degrees clockwise.