NADCA NADCA-ASCS Online Practice Questions and Exam Preparation

NADCA NADCA-ASCS Online Questions & Answers

• Question 61:

  Appropriate work-site containment monitoring is used to

  A. demonstrate the effectiveness of environmental engineering controls.
  B. monitor the progress of the project with respect to the schedule.
  C. monitor worker efficiency and safety.
  D. monitor the working hours relative to the plan.
  C. monitor worker efficiency and safety.

• Question 62:

  Power washing method shall NEVER be applied to:

  A. contaminated surfaces.
  B. porous surfaces.
  C. metal surfaces.
  D. coil surfaces.
  B. porous surfaces.

• Question 63:

  Which of the following is the MOST effective technique for cleaning an evaporator coil?

  A. Air wash
  B. Wire brush
  C. Wet wash
  D. Hand vacuum
  C. Wet wash

• Question 64:

  Which method of cleaning, along with negative pressure, shall be used to remove particulate from ductwork?

  A. Agitation
  B. Fogging
  C. Ozonation
  D. Coating
  A. Agitation

• Question 65:

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

  A. Backward-inclined fan
  B. Forward-curved fan
  C. Axial fan
  D. Radial fan
  B. Forward-curved fan

• Question 66:

  According to The NADCA White Paper on Using Chemical Products in HVAC Systems, The Environmental Protection Agency (EPA) has not registered any product for use as a disinfectant, sanitizer, or fungicide in the

  A. equipment room
  B. air handler
  C. exhaust fan
  D. ductwork
  D. ductwork

• Question 67:

  What would be the minimum acceptable respirator type that workers should use while cleaning a duct system?

  A. P100
  B. Full face
  C. Half mask
  D. N95
  D. N95

• Question 68:

  Sheet Metal and Air Conditioning Contractors’ National Association's (SMACNA) Duct Cleanliness for New Construction Guidelines provides requirements for

  A. removing ductwork to be relocated
  B. proper storage of job site duct materials
  C. proper disposal of hazardous contaminants
  D. insulation of new ductwork
  B. proper storage of job site duct materials

• Question 69:

  Which tool is used to visually inspect HVAC systems?

  A. Hygrometer
  B. Borescope
  C. Manometer
  D. Microscope
  B. Borescope

• Question 70:

  According to ACR, The NADCA Standard, which of the following is part of the HVAC system inspection?

  A. Thermostat
  B. Humidistat
  C. Exhaust air duct
  D. Combustion air duct
  C. Exhaust air duct