单项选择题
A.to help B.to limit C.to protect D.to remove
A reduction in load on a diesel engine results in （） of...
单项选择题A reduction in load on a diesel engine results in （） of speed of the crankshaft.
A.a reduction B.an increase C.an outing D.a downwards
A number of cylinder liners are enclosed in one cast ir...
单项选择题A number of cylinder liners are enclosed in one cast iron casing to form a （）.
A.cylinder cover B.cylinder block C.cylinder frame D.bed-plate
A main bearing consists of two shells which are secured...
单项选择题A main bearing consists of two shells which are secured by means of studs and （）.
A.tie rods B.through bolts C.lead wires D.bearing caps
