Listed below are sample questions for 3E451O from our database. Register now to start taking tests for this AFSC! We have 400 questions currently in the database for this category.
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The version of this CDC we have in the database is 1
1 . What size is the water draw-off line in an all weather tank, and where does it terminate?
¾ inch, ½ inch from the sump bottom
2 . 58. (024) A material that permits a large number of free electrons to move through it is called
3 . 71. (421) After refueling an aircraft and the lead pump deenergizes, at what pounds per square inch (psi) does the 58AF–9–1 defuel/flush valve close?
4 . 23. (409) Reference figure 2–7. Which of these would probably cause the 90AF–8 refueling control valve to open, then close?
5 . 30. (016) Which one of the following is not considered a hazardous substance?
Stagnant ditch water.
6 . 54. (216) The Class I, Division 2, hazardous area around a service station dispenser extends outward how many feet and upward how many inches?
20 feet, 18 inches
7 . 23. (608) What is the initial setting of all the chemical pump control knobs on the reverse osmosis water purification unit?
8 . 59. (025) The uniform movement of electrons in a specific direction is called
9 . What will horizontal underground storage tanks and cut and cover tanks that issue jet fuel have on top of them?
10 . A damaged diaphragm on the pressure reducing control is indicated by
a fuel leakage from the vent port
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