Administration, Supervision, and Training (cont)
Textbook Assignment: Engineman 1&C, NAVEDTRA 10543-E1, Pages 2-12 through 2-39
Learning Objective: Recognize the
purpose and the importance of Trend
and Spectrographic Analyses.
Question 2-1 is to be judged True or
Trend and spectrographic analyses are used
to spot impending engine malfunctions.
Which of the following is a means used to
determine if an engine needs to be
The current operating data is compared
with the previous operating data
The operating data of the engine is
compared with that of another engine
of the same type
The temperature of the lube oil
entering the oil cooler is compared to
that of the one leaving the cooler
The last two operating data sheets are
How are engine performance data used as a
They are used to circle the readings
that are out of limits
They are used to make graphs
They are used to bring the out of
limit readings to the attention of the
They are used to discuss the operating
data with all operators
In order to produce meaningful graphs for
a generator, what load percentage should
the data indicate?
Questions 2-5 and 2-6 are to be judged
True or False.
In most cases, a set of readings should
be plotted every 200 hours of engine
Engine performance data should be
obtained within 5 minutes after start up.
When preparing a graph, at what operating
hour do you place your first point for
lube oil consumption?
Which of the following information can be
obtained from the curves on graphs?
The condition of the engine
What needs to be done to the engine
The life expectancy of vital parts
All of the above.
What can you determine from a
spectrometric analysis of engine oil?
The extent of accelerated wear of an
internal combustion engine
The amount of oil the engine uses per
The rate of flow of the cooling water
to the lube oil cooler
The amount of oil pressure produced
by the lube oil pump
Questions 2-10 and 2-11 are to be judged
True or False.
After major overhaul, ships should,
maintain accurate records of operating
hours, including oil changes, and
samplings in order to provide the testing
facility with the information indicated
in the sampling kit.