1.What device part of the gasoline engine burns the fuel during power stroke of the piston? a.Hot air charged b.Spark plug c.Valve d.Connecting rod
2.What device part of the diesel engine burns the fuel during power stroke of the piston? a.Hot air charged b.Spark plug c.Valve d.Connecting rod
3.Which valve of the cylinder in gasoline and diesel engine is OPEN during intake stroke of the piston? a.Exhaust valve b.Intake valve c.Both intake and exhaust valves d.None
4.Which valve of the cylinder in gasoline and diesel engine is CLOSED during compression stroke of the piston? a.Exhaust valve b.Intake valve c.Both intake and exhaust valves d.None
5.Which valve of the cylinder in gasoline and diesel engine is OPEN during exhaust stroke of the piston? a.Exhaust valve b.Intake valve c.Both intake and exhaust valves d.None
6.Which valve of the cylinder in gasoline and diesel engine is CLOSE during exhaust stroke of the piston? a.Exhaust valve b.Intake valve c.Both intake and exhaust valves d.None
7.Which of the following appliances removes heat inside it's compartment and transfer this heat outside? a.Gasoline engine b.Diesel engine c.Refrigerator d.Electric fan
8.Which 4-strokes of an internal combustion engine is in correct order? a.Intake, compression, power, exhaust b.Compression, exhaust, intake, power c.Power, intake, exhaust, compression d.Intake, power, compression, exhaust
9.An automobile engine is 25% efficient and produce an average of 25,000 Joules of mechanical work per second during the operation. a.25,000 J b.50,000 J c.75,000 J d.100,000 J
10.Which statements accurately describes conversation of energy in terms of heat engines? a.The energy put into the hot reservoir is equal to the sum of the work extracted and energy transferred into the cold reservoir. b.The energy extracted as work is equal to the sum of the energy put into the hot reservoir and energy transferred into the cold reservoir. c.The energy transferred into the cold reservoir is equal to the sum of the heat put into the hot reservoir and the work extracted. d.The energy put into the hot reservoir is equal to the energy extracted from the cold reservoir.
