Pass Your ASHRAE Exam with HFDP Exam Dumps (Updated 116 Questions)
HFDP Exam Dumps - ASHRAE Practice Test Questions
NEW QUESTION # 27
Which of the following standards requires a machinery room when the maximum amount of refrigerant per the standard is exceeded?
- A. ASHRAE Standard 34
- B. ASHRAE Standard 170
- C. ASHRAE Standard 15
- D. ASHRAE Standard 62.1
Answer: C
NEW QUESTION # 28
According to the most current edition of ASHRAE Standard 170, which of the following is the correct number of air changes per hour for a treatment room?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION # 29
Which of the following is the MOST important factor when evaluating how effective a Variable Air Volume system will be in saving energy in an area or room?
- A. Number of procedures performed
- B. Size of the area or room
- C. Type of procedure being performed
- D. Amount of time that the airflow can be reduced
Answer: D
NEW QUESTION # 30
In a humidifier control sequence, humidifiers are modulated to maintain which of the following?
- A. Saturated supply air
- B. Saturated exhaust air
- C. Supply air relative humidity
- D. Exhaust air relative humidity
Answer: C
NEW QUESTION # 31
Inpatient hospitals are exempt from the requirements for night setback in ANSI/ASHRAE/IESNA Standard
90.1-2004 because hospitals:
- A. Are exempt from all requirements of this standard
- B. Have required room pressure controls
- C. Are public buildings
- D. Are intended to operate continuously
Answer: D
NEW QUESTION # 32
In the patient care area of an inpatient facility, the return air system shall?
- A. Be fully ducted
- B. Use ceiling plenum for return
- C. Use corridor for return
- D. Be fully exhausted
Answer: A
NEW QUESTION # 33
Which NFPA standard or code is the BEST guide for ventilation of medical gas storage or transfilling areas?
- A. NFPA 92
- B. NFPA 90A
- C. NFPA 55
- D. NFPA 45
Answer: C
NEW QUESTION # 34
Which of the following combinations in an HVAC system increases the risk for the spread of healthcare- associated environmental pathogens?
- A. Stagnant air and moisture
- B. Accumulation of dust and outdoor fungi
- C. Stagnant air and outdoor fungi
- D. Accumulation of dust and moisture
Answer: D
NEW QUESTION # 35
Which of the following is recognized equipment for the commissioning of areas that require unique pressure relationships?
- A. A room air leakage test
- B. A vane anemometer
- C. A handheld micromanometer
- D. A supply and exhaust measuring station
Answer: C
NEW QUESTION # 36
Which of the following areas generates the highest average internal heat gains per square foot?
- A. Critical Care Unit
- B. Cardiac Catheterization Lab
- C. Emergency Department
- D. Dialysis Unit
Answer: B
NEW QUESTION # 37 
A healthcare facility is renovating a cart washing station within the Central Sterile Reprocessing (CSR) Department. Based on the diagram above, which of the following describes the proper direction of airflow between the CSR and the renovation area?
Options:
- A. dynamic
- B. in
- C. neutral
- D. out
Answer: D
Explanation:
The CSR (Central Sterile Reprocessing) area must be maintained at a higher pressure than adjacent spaces to prevent contaminants from entering. The airflow should be directed outward from CSR to the renovation area to protect the sterile environment.
NEW QUESTION # 38
Which of the following causes a higher horsepower to cfm (L/s) ratio?
- A. Higher winter building heating load
- B. Higher number of branch ducts
- C. Higher static pressure drop in ductwork
- D. Higher summer building cooling load
Answer: C
NEW QUESTION # 39
In accordance with ASHRAE Standard 170, general hospital Operating Rooms must have a minimum of two return grilles, one of which must be located:
- A. Adjacent to the anesthetizing location
- B. High, and the other low
- C. As far away from the other as practical
- D. At breathing height
Answer: B
Explanation:
Comprehensive and Detailed Explanation:
OR Ventilation: ASHRAE Standard 170, Section 7.4.1, mandates at least two return/exhaust grilles in ORs, with one high and one low. The low grille (near the floor) removes heavier contaminants, while the high grille aids in overall air circulation, supporting laminar flow from ceiling diffusers.
Option Analysis:
A/B: Breathing height or anesthetizing location are not specified in ASHRAE 170.
C: Distance is practical but not the primary requirement.
D: Correct-high and low placement is explicitly required.
NEW QUESTION # 40
Which of the following is a key role of the HVAC system designer during the Infection Control Risk Assessment process?
- A. Locate the mechanical spaces within the building
- B. Supply air quality data to assess filtration needs
- C. Serve as a resource to the multidisciplinary team
- D. Prepare test and balance reports
Answer: B
NEW QUESTION # 41
Environmental conditions, systems, and physical plant equipment are BEST monitored by a:
- A. Building operations staff member
- B. Fire alarm system
- C. Building automation system
- D. Facility rounds checklist program
Answer: C
NEW QUESTION # 42
Variable Air Volume (VAV) systems are BEST used in which of the following areas?
- A. Operating Room
- B. Admissions Office
- C. Emergency Department Waiting Room
- D. Microbiology Lab
Answer: B
NEW QUESTION # 43
Which of the following organizations provides accreditation to healthcare organizations within the U.S. and its territories?
- A. U.S. Department of Health
- B. The Joint Commission
- C. ASHRAE
- D. Center for Disease Control (CDC)
Answer: B
NEW QUESTION # 44
Which of the following HVAC systems is prohibited in Operating Rooms and Critical Care Areas?
- A. Radiators or convectors
- B. Constant volume with reheat coils
- C. Variable volume with reheat coils
- D. Smooth radiant cooling and heating panels
Answer: C
Explanation:
Comprehensive and Detailed Explanation:
ASHRAE 170 Restriction: Section 6.3 prohibits Variable Air Volume (VAV) systems in ORs and critical care areas due to potential airflow fluctuations disrupting pressure and sterility. Constant volume (A) is required, while radiators (C) are discouraged due to dust accumulation. Radiant panels (B) are allowed if smooth.
NEW QUESTION # 45
0.746 kW = 1 brake Hp, 1 kWh = US $0.10. A facility is trying to choose between AHU-1 and AHU-2. AHU-
1 costs US $100,000 and uses 30 brake Hp. AHU-2 costs US $110,000 and uses 25 brake Hp. Based on the figures above, what is the approximate difference in the cost of the unit AND energy over 20 years of constant operation (in current US dollars)?
- A. $117,500
- B. $127,500
- C. $65,000
- D. $55,000
Answer: C
Explanation:
Comprehensive and Detailed Explanation:
* AHU-1: 30 hp × 0.746 kW/hp = 22.38 kW. Annual energy = 22.38 kW × 8760 hr/yr = 196,048 kWh.
20-yr energy cost = 196,048 × 20 × $0.10 = $392,096. Total cost = $100,000 + $392,096 = $492,096.
* AHU-2: 25 hp × 0.746 kW/hp = 18.65 kW. Annual energy = 18.65 × 8760 = 163,374 kWh. 20-yr energy cost = 163,374 × 20 × $0.10 = $326,748. Total cost = $110,000 + $326,748 = $436,748.
NEW QUESTION # 46
A medical gas storage room with a capacity for over 3,000 cubic ft. (84.95 cubic m) at standard temperature and pressure is required to have a ventilation system with which of the following criteria?
- A. The system shall cycle to meet temperature requirements
- B. The exhaust grille shall be sized for natural ventilation
- C. The system shall be interconnected to the facility AHU system
- D. The exhaust grille shall be located within 12 in. (31 cm) of the floor
Answer: D
NEW QUESTION # 47
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