6 1-38.   What is the common name for enamel- insulated wire? 1.     Winding wire 2.     Motor wire 3.     Magnet wire 4.     Coil wire 1-39.   What types of conductor protection are normally used for shipboard wiring? 1.     Wire braid armor and nonmagnetic steel tape 2.     Lead cable and Jute 3.     Jute and nonmagnetic steel tape 4.     Lead sheathing and rubberized tape 1-40.   What are the basic requirements for a splice or terminal connection? 1.     To be mechanically and electrically effective 2.     To be preinsulated and nonconductive 3.     To have minimum cost and maximum efficiency 4.     To have circuit continuity and minimum cost 1-41.   The preferred method for removing insulation from most types of insulated wire is by using what tool? 1.     Razor blade 2.     Electrician’s pliers 3.     Wire stripper 4.     Knife 1-42.   When a wire is insulated with glass braid or asbestos and requires stripping, which of the following tools should NOT be used? 1.     Knife 2.     Rotary wire stripper 3.     Hand wire stripper 4.     Hot-blade wire stripper 1-43.   What is the preferred tool to use to strip aluminum wire? 1.     Knife 2.     Rotary wire stripper 3.     Hand wire stripper 4.     Hot-blade wire stripper 1-44.   When a Western Union splice is used to connect two wires, why should the twisted ends of the wires be pressed down as close as possible to the straight portion of the wire? 1.     To increase the strength of the splice 2.     To prevent the wires from puncturing the tape covering 3.     To minimize the resistance change in the circuit 4.     To increase the dielectric strength of the insulation 1-45.   When multiconductor cables are spliced, why are the splices staggered? 1.     To prevent possible shorting between conductors 2.     To increase the strength of the individual splices 3.     To decrease insulated resistance 4.     To reduce the overall size of the joint 1-46.   When is a rattail joint normally used? 1.     When a branch circuit is required and a junction box is used to join conduit 2.     When a Western Union splice would be too bulky 3.     When asbestos or glass braid is used as insulation 4.     When the branch wire will be subjected to a heavy strain