Listed below are sample questions for 3E451N from our database. Register now to start taking tests for this AFSC! We have 448 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 . 13. (603) What are the two possible positions of the differential deluge valve?
Standby and fire
2 . 67. (225) What prevents leakage past the hub of a resilient-liner plug valve?
3 . 31. (010) Which system identifies duties and tasks for every position needed to accomplish the Air Force mission?
Military personnel classification
4 . 69. (225) What is the first step in removing a General Twin Seal plug valve operator?
Close the main valve
5 . 13. (204) What Air Force instruction details blocking and tagging of electrical lines?
6 . 76. (022) What term is used to describe the process of storing hazardous waste prior to disposal?
Hazardous waste accumulation
7 . 49. (422) How many times are pipes in the water systems tested?
Twice, after the fixtures are installed and after the appliances are connected.
8 . 28. (606) The vertical space between the supply line and the flood level rim must be at least
two times the diameter of the supply pipe
9 . 40. (418) What device do you install in a building distribution system to correct a water hammer problem?
Vertical air chamber
10 . 39. (608) The first test on a double check valve assembly is to ensure the check valves hold tight against
1 psi in the direction of flow
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