100 rpm
200 rpm
300 rpm
500 rpm
第1题：
dial indicator
outside caliper
bridge gauge
tram rod
第2题：
top of the ring groove
back of the ring groove
bottom of the ring groove
piston ring end clearance
第3题：
A diesel engine experiences a sudden loss in speed, accompanied by black exhaust smoke, with the fuel rack at maximum, and speed remaining below normal .the probable ___.
A.engine overload
B.leaky valves
C.stuck or broken piston rings
D.low air injection pressure
第4题：
direct action of cam shaft
compressed air pressure
hydraulic “push rods”
direct action of the main piston moving down
第5题：
runs out of fuel
has low lubricating oil pressure
exceeds a set maximum speed
has high cooling water temperature
第6题：
regulating the speed of the turbocharger
rotating the fuel injector pump plunger
regulating the speed of the fuel oil transfer pump
changing engine timing
第7题：
Manually trip the over-speed device
Interrupt the fuel flow to the engine
Disengage the safety interlock
Slide the camshaft to the neutral position
第8题：
The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually______.
A.greater than the average exhaust manifold pressure
B.less than the average exhaust manifold pressure
C.greater at the turbine wheel than at the impeller
D.greater at reduced engine speed
第9题：
slow-speed diesel
medium-speed diesel
high-speed diesel
constant-speed diesel
第10题：
the inlet valve
the outlet valve
both the inlet valve and the outlet valve
the pump inlet valve