Allied & ICAR Exam Bank • ALLIED_0248 NAT • 2 Marks

Section 3: Farm Power

Farm Power

Subtopic: Thermodynamic principles of I.C. engines

Question Statement:

In a single cylinder 4-stroke engine, displacement volume is $500\text{ cm}^3$ and clearance volume is $50\text{ cm}^3$. The compression ratio is:

Answer Key:

11

Step-by-Step Solution & Explanation

Compression ratio $r = (V_s + V_c) / V_c = (500 + 50) / 50 = 550 / 50 = 11.0$.
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