Engineering, Control Systems. Test 16

What is the purpose of the expansion tank in a Diesel engine jacket cooling water system?

To take up the difference of water pressure with changes of temperature.
To take up the difference of water volume with changes of temperature.
To allow for leakage in the system.
To act as a spare tank in case the pressure is dropping.

When checking the tightness of nuts and bolts during a diesel engine crankcase and hold-down bolt inspection, the quickest and most effective method is _____

tapping the nuts and bolts with a hammer.
checking the tightness using torque spanners.
checking bold clearances with feeler gauges.
checking the stress on the locking plates or split pins.

What steps are to be taken in chronological order to stabilise a governor of a diesel engine after overhaul ?

Adjust speed (P) setting, than integrating, next differentiating from zero.
Set integrating to MAX, then adjust speed (P) and differential D.
Set integrating to MAX, differentiating to MIN, adjust speed (P) upward.
Set integrating and differentiating to MAX, set speed (P) from zero upwards.

You notice the sump level in an engine has increased and no new oil has been added. What action would you take ?

Stop the engine and check for fuel or water leaks.
Check the level regularly.
Reduce the load and start the purifier.
Drain some oil from the engine.

Review Answers