Allied & ICAR Exam Bank • ALLIED_2982 MCQ • 1 Mark

Section 3: Farm Power

Farm Power

Subtopic: Thermodynamic principles of I.C. engines

Question Statement:

The air-standard Otto cycle consists of which four internally reversible processes?

Options:

  • (A) Two isentropic processes and two constant-volume (isochoric) heat transfer processes
  • (B) Two isentropic and two constant-pressure processes
  • (C) Two isothermal and two isentropic processes
  • (D) Two polytropic processes and two isobaric processes

Answer Key:

A

Step-by-Step Solution & Explanation

Otto cycle comprises: isentropic compression (1-2), isochoric heat addition (2-3), isentropic expansion (3-4), and isochoric heat rejection (4-1).
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