3E151N Practice Test

Listed below are sample questions for 3E151N from our database. Register now to start taking tests for this AFSC! We have 320 questions currently in the database for this category.

The version of this CDC we have in the database is 1

« Return to AFSC List
  • 1 . 37. (211) You should use two flare nut wrenches when tightening flare fittings in order to
    prevent twisting of the tubing.
  • 2 . 67. (218) You usually repair leaking oxyacetylene hoses by using a
    hose splice.
  • 3 . 93. (225) Which gauge is used to measure clearance by inserting leaves within the opening being measured?
    Thickness.
  • 4 . 48. (411) How are switches rated?
    Volts and amperes (amps).
  • 5 . 26. (208) When making a joint, you apply pipe joint compound or Teflon tape to the
    male threads.
  • 6 . 38. (017) The CerTest pre-tests are used to
    evaluate a student’s current knowledge and identify weak areas that need training.
  • 7 . 75. (418) While using an ohmmeter to troubleshoot an open circuit, you get a low resistance reading. What does this mean?
    Continuity is present.
  • 8 . 81. (221) When using the oxyacetylene cutting torch to pierce metal, you’ll need to preheat the metal, then position torch to
    ½ inch above the metal’s surface.
  • 9 . 47. (410) What does the thermal portion of the thermal-magnetic breaker provide?
    Time delay.
  • 10 . 67. (029) What is a process that allows you to get everything you will need to complete the work?
    Planning.