RCDD-001

RCDD-001 practice questions, page 5 of 15, with answer review and explanations.

Question 21

The potential for ______ occurs when devices or systems share a common electromagnetic environment and their operational frequencies overlap.

  1. Electromagnetic interference (EMI)
  2. (EMC)
  3. Radio frequency interference (RFI)
  4. Fast transients
  5. Electrostatic discharge (ESD)

Question 22

Which of the following is an undesirable electromagnetic effect on a device(s)?

  1. (EMC)
  2. Electromagnetic interference (EMI)
  3. Radio frequency interference (RFI)
  4. Fast transients
  5. Electrostatic discharge (ESD)

Question 23

You are required by architectural design to place UTP cables in the same space as unshielded power lines. How should you proceed with the placement of your cables?

  1. Require the architect/electrical engineer to place shielding in the space before your UTP is placed.
  2. You should provide a minimum separation of 610 mm (24 in).
  3. You should provide a minimum separation of 229 mm (9 in).
  4. You should provide a minimum of two 101 mm (4 in) RMC.

Question 24

You are placing Category 6 unshielded twisted-pair (UTP) in cable tray down a hallway past the elevator mechanical room. What action should you take to avoid effects of electromagnetic interference (EMI)?

  1. Provide a minimum separation of 1194 mm (47 in)
  2. Provide a minimum separation of 2060 mm (81 in)
  3. Require the architect to install metallic foil shielding on the mechanical room walls
  4. Provide RMC/IMC (rigid metallic conduit/intermediate metal conduit) through all areas within 4.6 m (15 ft) of the mechanical room

Question 25

The ability of a device to withstand electromagnetic disturbances from another device is:

  1. Electromagnetic interference (EMI)
  2. Radio Frequency Interference (RFI)
  3. (EMC)
  4. Fast transients
  5. Electrostatic Discharge (ESD)