单项选择题
On a large low-speed main propulsion diesel engine, lower main bearing wear is usually measured by using a/an （）
A.dial indicator
B.outside caliper
C.bridge gauge
D.tram rod
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相关考题
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单项选择题
To determine the main bearing clearance of a propulsion diesel engine, you should measure the main bearing shell using a ball anvil outside micrometer and measure the crankshaft journal using a/an （）
A.telescoping
B.ring ‘snap’ gauge
C.inside vernier caliper
D.outside micrometer -
单项选择题
The ignition quality of a diesel fuel is indicated by the （）
A.cetane number
B.volatility point
C.viscosity index
D.octane number -
单项选择题
The ignition quality of a diesel fuel oil is indicated by the （）
A.specific gravity
B.cetane number
C.viscosity
D.calorific valve
