NC2 WRITTEN EXAM (SET A)

• Schematic Diagram


  A kind of diagram that is used in designing or troubleshooting electrical installation control equipment so arrange to facilitate the tracing of the circuit
• Electrical parameters applied or labeled to all kinds of switches

  • Rated current
  • Rated Voltage
• Fittings

  • Locknut
  • Bushing
  • Connectors
• RSC/IMC


  The commonly used type of conduit in service entrance
• Condulet


  A kind of fitting resembling a pipe with a removable cover access to electric conduit
• Utility box


  A box used for flush type convenience outlet and switches
• Mechanical lug


  Mechanical connector that crimp unto a conductor for both splice and termination
• PVC Solvents


  Commonly used adhesive material for joining PVC conduit
• 40A motor full load current

  Circuit breaker size should be equal to 100 A
• De-energize a live duplex wire quickly and safelycutting

  1 by 1 using diagonal plier
• Ammeter connection


  Connected in series with the load
• Ohmmeter connection


  Connected across the terminal with the load
• Grounding electrode conductor


  The connection between the grounded circuit conductor and the equipment grounding conductor at the service
• THW wire


  PVC insulated heat resistant
• Conduit size for auxiliary devices

  Minimum 3/4" diameter
• Wire ways


  Sheet metal through with hinged or removable covers for housing and protecting electrical wires and cable and which conductors are laid in place
• Straight connector


  Type of fitting used for tightening between the boxes and the RSC conduit
• Utility box


  The box used for typical switches
• Enclosure


  A part providing appropriate degree of protection of equipment against external influences and with live parts in any direction
• Necessary to use torque wrench in tightening bolted joint of copper bus bars inside the bud ducts and bus ways
• Conduit strap/clamp


  Type of fitting used for exposed conduit support
• When raceways are exposed to widely different temperature it should be sealed
• Selection requirement for circuit breaker

  • Kilo amps. Interrupting capacity
  • Ampere trip
  • Ampere frame
• Flexible branded copper plate


  The material used for long length bus bar joints to give allowance to thermal expansion
• CCTV


  24-hour protection for homes and commercial buildings to monitor the video anytime anywhere
• Camera


  The auxiliary device of CCTV that monitor the motion daily
• Recorder


  A part of auxiliary device that capture live events and save as video files
• Motion detector


  Parts of auxiliary system that set the motion trigger action individually for each camera
• Sleeve


  An accessory which serves to complete a conduit system, such as bushing and access fittings
• Convenience outlet


  A point in the wiring system which current is taken to supply utilization equipment
• Elbow


  A conduit insulation to make 90 degree bend you will use mechanical rather than an electrical function
• TW wire


  Moisture resistant
• Wiring Diagram


  A diagram that shows the location and actual termination of the auxiliary devices
• Input device of FDAS

  • Smoke detector
  • Heat detector
  • Manual call point
• CCTV input device

  • Camera
• CCTV output device

  • Monitor