GATE AG 2022 • Q28 MCQ • 1 Mark

Section 3: Farm Power

Sources of Power

Subtopic: Sources of power on the farm – human, animal, mechanical, electrical, wind, solar and biomass

Question Statement:

Complement of the Solar Altitude angle is ______.

Options:

  • (A) Zenith angle
  • (B) Azimuth angle
  • (C) Hour angle
  • (D) Profile angle

Official Answer Key:

A

Step-by-Step Solution & Explanation

• Solar Altitude + Solar Zenith = 90°, by definition (zenith is measured from vertical, altitude from horizon). • Distractor logic: (B) is the sun's compass direction, (C) is time-based angular displacement, (D) is used in shadow-geometry calculations — none complementary to altitude.

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