ASCS

ASCS practice questions, page 4 of 6, with answer review and explanations.

Question 16

What is the MOST effective way for an ASCS to test the function of a condensate pump?

  1. Unplug and plug in the pump
  2. Fill the condensate pan with clean water
  3. Disconnect the condensate drain line
  4. Fill the pump with clean water

Question 17

Which component is designed to provide the difference in air pressure required to distribute air throughout a system?

  1. Heating coil
  2. Centrifugal fan
  3. Cooling coil
  4. Turning vane

Question 18

An ASCS finds leaks in the supply ductwork of a residential HVAC system that is located in an attic. This will MOST likely cause:

  1. positive pressurization of the occupied space.
  2. balanced pressurization of the occupied space.
  3. negative pressurization of the occupied space.
  4. cleaner air for the occupied space.

Question 19

Which of the following HVAC components controls the room air by regulating hot and cold air?

  1. VAV box
  2. Mixing box
  3. Attenuator
  4. Constant volume damper

Question 20

The MOST common control release mechanism for fire dampers is:

  1. fusible links.
  2. pneumatic controls.
  3. electromagnetic controls.
  4. pulling the building fire alarm device.