Question

In Cooling system when the cooling is reached beyond the limits leads to______ of viscosity and ______ of the Mechanical Efficiency.

(a) increase and Decrease

(b) decrease and Increase

(c) increase and Increase

(d) decrease and Decrease

Answer 1

The correct answer is (a) increase and Decrease

The explanation: As temperature and viscosity are inversely proportional to each other the viscosity of the lubricant Increase and due to this more piston friction is encountered thus Decrease of mechanical efficiency.