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Assignment 2-Cont. - 14104_302
Assignment 2-Cont. - 14104_304

Fireman - Navy Firefighter, Fireman training manual
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2-23. What term refers to the property of a metal that will NOT permit it to tear or shear easily? 1. Toughness 2.  Brittleness 3. Strength 4. Hardness 2-24. What term refers to the ability of a metal to stretch or bend without breaking? 1. Toughness 2.  Brittleness 3.  Strength 4. Ductility 2-25. What term refers to the ability of a metal  to  maintain  heavy  loads  without breaking? 1. Toughness 2. Strength 3. Hardness 4.  Ductility 2-26. What term refers to the property of a metal that allows it to be rolled, forged,  hammered,  or  shaped  without cracking  or  breaking? 1.  Malleability 2.  Ductility 3. Strength 4. Toughness 2-27. Metals and alloys are divided into which  of  the  following  general classes? 1. Light and heavy 2. Hard and soft 3. Smooth and rough 4.  Ferrous  and  nonferrous 2-28. What are the two systems used by the Navy  to  identify  metals? 1.  The  color  marking  system  and  the weight system 2. The numbering system and the weight system 3.  The  continuous  identification marking  system  and  the  color marking system 4.  The  continuous  identification marking  system  and  the  weight system 2-29.  Which  of  the  following  references contains  information  on  the  metals used aboard ship, their properties, and  their  identification  systems? 1. NAVEDTRA 10571-1 2. NAVEDTRA 12061 3.  NAVEDTRA  10792-E 4. NAVEDTRA 10925 2-30. Electricity is a combination of a force  called  voltage  and  the  movement of  invisible  particles  known  as 1.  resistance 2.  friction 3.  mass 4. current 2-31. In reference to current, which of the following  statements  is  NOT  true? 1. Current is the movement of invisible  particles 2.  Current  causes  electrical  devices to operate 3. Current cannot be seen 4. Current can flow out of a broken wire 2-32. Ohm’s law is stated as I = E/R, What does I refer to? 1. Voltage in volts 2. Current in amperes 3. Resistance in ohms 4. Pressure in pounds 9






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