Allied & ICAR Exam Bank • ALLIED_0268 NAT • 2 Marks

Section 3: Farm Power

Farm Power

Subtopic: I.C. engine systems – fuel, cooling, lubrication, ignition, electrical, intake and exhaust

Question Statement:

A tractor cooling radiator has a pressure cap rated at $70\text{ kPa}$ gauge pressure. At standard atmospheric pressure ($101.3\text{ kPa}$), the absolute boiling point of water rises to approximately $115^\circ\text{C}$. The absolute pressure inside the cooling system in kPa is:

Answer Key:

171.3

Step-by-Step Solution & Explanation

Absolute pressure $= P_{atm} + P_{gauge} = 101.3 + 70.0 = 171.3\text{ kPa}$.
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