Engineering, Control Systems. Test 24

During normal operation, the telescopic piping of this diesel engine's piston are sliding up and down into _____

the crankcase cooling space.
piston cooling water piping.
compressed air vessels.
telescopic buffer vessels.

What is the original power that moves the injection needle upwards in the injector and causes the injector to spray fuel under pressure into the cylinder?

The hydraulic pressure in the fuel line.
The balance pressure obtained by the injector spring.
The lifting pressure of the pump plunger.
The mechanical force of the fuel cam.

What is the most likely reason for high exhaust temperatures in all cylinders of a Diesel engine?

Broken piston ring.
A faulty fuel valve.
Rising scavenge air temperature.
A cracked liner.

What is the structural lay-out of this diesel engine?

One unit foundation and bedplate, separate cylinder block.
Separate bedplate, columns, cylinder block for each cylinder.
Separate bedplate, one part crankcase and cylinder block.
Foundation, one-piece motor block.

In this diagram if left is portside and right is starboard and during the taking of crankshaft positions the rotation is counterclockwise, in what position is the engine crankshaft now shown ?

Between P and S
Between TS and TP
Between TP and P
Between S and TS

How are the inlet, exhaust valves and rocker arms actuated on this engine?

Directly lifted by the cams acting on pushrods.
Hydraulically lifted by cam activated servo unit.
Indirectly lifted by cam via tumbler lever.
Pneumatically lifted via cam activated air booster.

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