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Free ASCS Exam Braindumps (page: 4)

Page 4 of 38
PDF with 148 Questions

The MOST common types of fuel consumed in modern residential HVAC systems are:

  1. natural gas, propane, and oil
  2. electric, propane, and oil
  3. natural gas, methane, and oil
  4. natural gas, propane, and ethanol

Answer(s): D



What type of supply fan transfers large volumes of air with a minimal wheel diameter?

  1. Backward-inclined fan
  2. Forward-curved fan
  3. Axial fan
  4. Radial fan

Answer(s): B



In what sequence is an HVAC system typically cleaned?

  1. Supply, air handler, return
  2. Exhaust, air handler, return, supply
  3. Return, supply, exhaust, air handler
  4. Return, air handler, supply

Answer(s): B



According to ACR, The NADCA Standard, coil cleaning should be performed:

  1. on the upstream side only.
  2. on both the upstream and downstream sides.
  3. on the downstream side only.
  4. when the system is running.

Answer(s): B






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