Engine
crankshaft and connecting rod assembly is one of the assemblies in
the engine. It converts ( ) energy into mechanical energy used to
drive the vehicle.
A: chemical
B: thermal
C: physical
D: electrical
crankshaft and connecting rod assembly is one of the assemblies in
the engine. It converts ( ) energy into mechanical energy used to
drive the vehicle.
A: chemical
B: thermal
C: physical
D: electrical
举一反三
- The crankshaft and connecting rod converts energy into energy used to drive the vehicle. A: mechanical, thermal B: mechanical, kinetic C: thermal, mechanical D: kinetic, mechanical
- The ______ is a device that converts electrical energy into mechanical energy in order to turn the engine over for starting. A: luxuriant B: invocation C: fatalism D: starter motor
- The automobile engine is an internal combustion engine which converts the heat energy of fuel into mechanical energy to make the car move.
- It works in the following manner: the engine converts the fuel from the fuel tank into the mechanical energy to drive the generator, generating electric power．
- An engine converts 5,000 J of thermal energy into 2,500 J of work. What is the efficiency of the engine? A: 10 percent B: 20 percent C: 50 percent D: 100 percent