NC2 MULTIPLE CHOICE

• To measure the insulation resistance of some conductors, you would use MEGGER
• Pipe thread is,
• Work on low voltage tension circuit should caution them to
• Circuit has been killed
• Follow the wall?
• The combined resistance is
• The ampacity
• When three equal resistors are connected in parallel, the total resistance is

  Less than anyone resistor
• The efficiency of the motor is measured on

  How it will converts electrical energy to mechanical energy
• When stripping insulation from aluminum conductor

  Peel the insulation back and then cut outwards
• The angle is the angle between the real power and the apparent power


  Power factor
• The most heat is created when the current flows through

  10 ohm resistor
• 60 cycle frequency travels 180 degrees in


  1/180 seconds
• The electrician's tapered reamer is used for


  Reaming the edge of rigid conduit after it is cut
• Electricity is sold by kilowatt which is equivalent to


  1,000 w
• The greater the number of free electrons the better the

  Conductivity of metal
• Clamp-on ammeter will measure


  Current when clamped on a single conductor
• Conduit installed in a concrete slab is considered

  Wet location
• It is best as a safety measure not to use water to extinguish electrical equipment fires. The main reason that water


  May transmit shock to the user
• When a person is burned the basic care steps are

  1. Cover and cool the burned area

  2. Care for shock

  3. Prevent infection
• Multimeter is a combination of

  Voltmeter, ammeter, and ohmmeter
• Since fuses are rated by an amperage and voltage a fuse will work on

  AC or DC
• A fuse puller is used in replacing

  Cartage fuses
• A pendant fixture is also called

  Hanging fixture
• To fasten an outlet box between the studs in a wall constructed of metal lath and plaster, you would use

  Approved box hanger
• A low energy power circuit

  Has its power supplied by transformer and batteries
• S, is the symbol used on a drawing to indicate a

  1. way switch
• Action requiring personal intervention for its control

  Non automatic
• A protective device for limiting surge voltages by discharging or bypassing surge current, and it also prevents continued flow of follow current while remaining capable of repeating these functions

  Surge arrester