In a two-stroke engine that uses a camshaft, each valve is opened _____ for every rotation of the crankshaft; in these engines, the camshaft rotates at the same speed as the crankshaft.In a four-stroke engine, the valves are opened only half as often; thus, _____ of the crankshaft occur for each rotation of the camshaft. A: once ... two full rotations B: twice ...two full rotations C: once ... one full rotation D: twice ... one full rotation
In a two-stroke engine that uses a camshaft, each valve is opened _____ for every rotation of the crankshaft; in these engines, the camshaft rotates at the same speed as the crankshaft.In a four-stroke engine, the valves are opened only half as often; thus, _____ of the crankshaft occur for each rotation of the camshaft. A: once ... two full rotations B: twice ...two full rotations C: once ... one full rotation D: twice ... one full rotation
Crankshaft
Crankshaft
The crankshaft is bolted to the bottom of the cylinder block.
The crankshaft is bolted to the bottom of the cylinder block.
The bearings used to support the crankshaft are generally called （）
The bearings used to support the crankshaft are generally called （）
The crankshaft deflection is at first to be （） before and after repair.
The crankshaft deflection is at first to be （） before and after repair.
Cylinder block holds pistons, the crankshaft and other parts.
Cylinder block holds pistons, the crankshaft and other parts.
The amount of fuel injected in a particular time， or degree， of crankshaft rotation is termed （）.
The amount of fuel injected in a particular time， or degree， of crankshaft rotation is termed （）.
The _______ is the heart of an automboile. A: piston B: engine C: crankshaft D: valve
The _______ is the heart of an automboile. A: piston B: engine C: crankshaft D: valve
The cylinders and pistons are in the upper part of the cylinder block and the crankshaft is in the lower part.
The cylinders and pistons are in the upper part of the cylinder block and the crankshaft is in the lower part.
The camshaft is drived by( ) A: crankshaft B: flywheel C: clutch D: piston
The camshaft is drived by( ) A: crankshaft B: flywheel C: clutch D: piston