EIM ORAL REVIEWER

• Types of conduit

  • Metallic (RMC, IMC, EMT)
  • Non Flexible Conduit (PVC)
  • Metallic Flexible Conduit
  • Non-metallic Flexible Conduit
• Purpose of providing tool box and gutter


  Cable pulling and splicing terminating wire
• Types of PPE (Personal Protective Equipment)


  • Hard Hat
  • Gloves
  • Safety Shoes
  • Googles
• Purpose of electrical knife instead of electrical pliers


  To avoid nicking of wire
• Purpose of using tape to insulate bare conductor

  Rubber tape does not absorbed much moisture when exposed
• Why is it not advisable to use water to extinguish fire caused by electricity

  Because water may transmit to the user
• Best move using power tools in installation


  Inspect and test if the power tools are in good or safe to use
• Examples of fittings used in installation conduit

  • Lock nut
  • Straight connector
  • Bushing
  • Conduit
  • Coupling
  • Conduit Strap
• Enclosure


  Electrical materials providing appropriate degree of equipment against contain external influences and contact with live parts any direction
• Types of services applied in a building

  • Service drop-conductor from electrical pull to residential houses
  • Service entrance conductor
  • Service equipment panel board
• PEC


  Philippine Electrical Code
• What to do if the installation manual for installing selector switch is not available

  If you are not familiar with the installation of the selector switch do not attempt to do it. Bring the mottle to your supervisor and ask for assistant
• Portable grinder


  Power Tools
• How grounding system can prevent someone from receiving electric shock

  Grounding system has a lower resistance compared to the body if there is a ground current, the current will tend to follow the lower resistance, thereby preventing someone shock
• How to protect Electrical System

  Install transient voltage surge suppressor of lighting arrester
• Why fuses and circuit breakers cannot used solely to protect against overload

  Fuse and circuit breakers sense the branch circuit current which is normally higher than the fuse load current. If there is an overload fuses and circuit breakers may not trip to and will damage the load
• Advantage of a digital meter over an analog meter

  Digital meter is more accurate than analog meter due to its electronic components. Easy to calibrate and more reliable
• Tools and equipment needed in installing pipe supports and fittings

  • Welding Machine
  • Electrical Tools
  • Electrical grinder
  • Small Tools (hack saw, hammer)
• Common cause of electrical drill breakdown

  Worn-out carbon brush, is the common cause of electrical drill breakdown
• Purpose of installing a GCFI outlet


  GFCI outlet are usually installed on wet locations where a person may experience
• Basic components of lighting protection system

  • Lightning terminal
  • Down conductors
  • Grounding rod
• Acronym of VOM as multi-meter

  • V- voltmeter
  • O- ohmmeter
  • M- millimeter
• Different components of the fire alarm system

  • Fire alarm control panel
  • Smoke detector
  • Fire alarm bell
  • Heat detector
  • Manual station
• Basic components of CCTV system


  • Closed Circuit Camera
  • TV monitor
  • Sequential switch
  • Recorder
  • CCTV adapter/ Splitter
• Video Entry Phone


  Video entry phone is a communication device which allows the person to identify a visitor through picture image in a monitor
• Major parts of door access control system


  • Door Lock
  • Control system panel
  • Biometric reader and controller
  • Exit button
• Function of Motion Detection in CCTV


  It is the part of auxiliary system that set the motion-trigger action individually each camera
• Wiring diagram in Auxiliary Device System


  A diagram that show the (creation) and actual termination of the auxiliary devices