PRACTICE EXERCISE FOR LESSON 2
You have just finished reading the instructional material for Lesson 2. This lesson covered procedures
for starting and stopping the M12A1 PDDA engine and pump unit assembly, and the operation of the
apparatus in usual and unusual conditions. It is now time to check your understanding of the lesson.
This is done by completing the practice exercise below. All of the questions are multiple-choice and are
intended to measure your understanding of the procedures used in performing the task. There is only
one correct answer to each question. Try to answer all of the questions without referring to the lesson
When you have completed all of the questions, turn the page and check your answers against the correct
responses. Each correct response is referenced to specific portions of the lesson material so that you can
review any questions you have missed or do not understand. When you have completed your review,
continue to the next lesson.
When would you remove only two of the four pump unit assembly panels that are marked
"REMOVE BEFORE OPERATING"?
When the humidity is high.
When the temperature is above 80 degrees Fahrenheit.
When operating in a salt water environment.
When the temperature is below freezing.
When starting the M12A1 PDDA engine, which control is set at approximately the halfway
The voltage regulator switch.
Immediately before starting the pump unit on the M12A1 PDDA, you must ensure that ______
valve 4 is closed.
valves 1, 2, and 3 are closed.
the voltage regulator switch is in the ON position.
the low oil pressure switch is released.
When starting the M12A1 PDDA, which should you do until the oil pressure exceeds 20 psi?
Adjust the start-magneto switch to RUN.
Hold the throttle out three-quarters of the way.
Depress the oil pressure switch.
Observe the water temperature indicator.