Page 11 (110-120)

Question 1

Where would a coarse screen wire-mesh strainer normally be found on a diesel engine lubrication system?

Answer 1

pump suction line

Question 2

High diesel engine cooling water temperatures can be caused by __________.

Answer 2

• a worn water pump
• not enough coolant
• air in the cooling system
• all of the above*

Question 3

Which of the listed problems would be indicated by an accumulation of water in one cylinder, in addition to the crankcase of an idle diesel engine?

Answer 3

Cracked cylinder liner.

Question 4

One advantage of electromagnetic slip couplings is __________.

Answer 4

torsional vibrations are reduced

Question 5

If a hydraulic governor has been refilled with oil, the engine should be operated until it reaches normal temperature, then the air should be purged, and the __________.

Answer 5

compensating needle valve should be adjusted to stabilize operation

Question 6

Which of the labeled figures illustrated, represents the correct alignment mark relationships of a properly reassembled centrifuge bowl?

Answer 6

A

Question 7

The rotary motion of a diesel engine crankshaft is obtained from the up and down motion of the piston via the __________.

Answer 7

connecting or piston rod

Question 8

What are the effective stroke characteristics for the injection pump plunger shown in the illustration?

Answer 8

Constant beginning and variable ending

Question 9

Unusually low oil pressure in the lube oil header of a diesel engine is the result of a/an __________.

Answer 9

air leak in the oil pump suction line

Question 10

A diesel engine is operating at 1800 RPM and driving a propeller at 600 RPM. What is the speed reduction ratio?

Answer 10

3.00 to 1

Question 11

The power loss associated with slip in a fluid coupling appears as __________.

Answer 11

heat in the hydraulic fluid