The mechanical efficiency (ηm) of an I.C. engine is equal to (where I.P. = Indicated power, B.P. = Brake power and F.P. = Frictional power) September 13, 2025 by Admin I.P/B.P. B.P/I.P. B.P/F.P F.P./B.P. ✅ The correct answer is option B.
The boiling point of Diesel fuel is in the range of September 13, 2025 by Admin 70°C to 100°C 100°C to 120°C 120°C to 180°C 180°C to 360 °C ✅ The correct answer is option D.
The function of a connecting rod is September 13, 2025 by Admin to turn the flywheel to drive the drive plate to drive the fuel pump to transmit motion of ✅ The correct answer is option D.
A petrol that detonates easily is called September 13, 2025 by Admin high octane petrol low octane petrol unleaded petrol blended fuel ✅ The correct answer is option B.
In an engine, the temperature of the piston will be more at the September 13, 2025 by Admin crown of the piston skirt of the piston piston walls piston rings ✅ The correct answer is option A.
Which of the following is not an automobile ? September 13, 2025 by Admin Motor cycle Passenger car Aeroplane Truck ✅ The correct answer is option C.
The process of supplying the intake air to the engine cylinder at a pressure greater than the pressure of the surrounding atmosphere is known as September 13, 2025 by Admin supercharging auto-ignition scavenging detonation ✅ The correct answer is option A.
The most effective method of controlling S.I. engine exhaust emission is by September 13, 2025 by Admin recirculating exhaust using catalytic converter using some additives in the fuel none of these ✅ The correct answer is option B.
The negative terminal post on the top of a battery is September 13, 2025 by Admin smaller than the positive terminal post larger than the positive terminal post of the same size as the positive terminal post none of these ✅ The correct answer is option A.
The main purpose of an engine’s air cleaner is that it September 13, 2025 by Admin controls the engine’s air intake volume reduces the engine’s air intake noise prevents rain water from entering the engine prevents dust and othe ✅ The correct answer is option D.