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  • Total Questions: 116
  • Updated on: Jun 18, 2026
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HFDP Desktop Test Engine

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  • Total Questions: 116
  • Updated on: Jun 18, 2026
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HFDP PDF Practice Q&A's

  • Printable HFDP PDF Format
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  • Total Questions: 116
  • Updated on: Jun 18, 2026
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ASHRAE Healthcare Facility Design Professionals Sample Questions:

1. In a conditioned space, when the total grains of moisture in the air remain constant and the dry bulb temperature of the air drops, which of the following psychrometric reactions will occur?

A) The humidity ratio will fall
B) The humidity ratio will rise
C) The relative humidity will fall
D) The relative humidity will rise


2. Which of the following HVAC systems is prohibited in Operating Rooms and Critical Care Areas?

A) Variable volume with reheat coils
B) Smooth radiant cooling and heating panels
C) Constant volume with reheat coils
D) Radiators or convectors


3. In accordance with the ASHRAE HVAC Design Manual for Hospitals and Clinics, which of the following is the BEST form of communication to accomplish good planning, testing, and commissioning?

A) Written reports
B) Phone message logs
C) Requests for information
D) Change orders


4. Energy recovery systems serving Airborne Infectious Isolation Rooms must meet which of the following criteria?

A) Supply airstream and exhaust airstream components are separated by an air gap open to the atmosphere
B) Wheel leakage of less than 0.5%, as determined by an SF6 test performed on the fully operational system in the field
C) Leakage potential shall be designed to have no more than 5% of the total supply airstream consisting of exhaust air
D) Total effectiveness greater than 50%


5. In accordance with ASHRAE Standard 170, the filter bed #2 in an air-handling unit serving a patient area shall be located:

A) Between the fan and the outside air louver
B) After the pre-heat coil and before the fan
C) Before the fan and the cooling coil
D) After the fan and the cooling coil


Solutions:

Question # 1
Answer: D
Question # 2
Answer: A
Question # 3
Answer: A
Question # 4
Answer: C
Question # 5
Answer: D

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