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NEW QUESTION # 24
An Ethylene Oxide (ETO) Room is being designed with 100 cfm (48 L/s) supply air and 150 cfm (71 L/s) of exhaust. Which of the following additional provisions is recommended?
- A. Sealed door
- B. HEPA filters
- C. Pressure alarm
- D. Dedicated exhaust
Answer: D
NEW QUESTION # 25
Variable Air Volume (VAV) systems are BEST used in which of the following areas?
- A. Microbiology Lab
- B. Operating Room
- C. Admissions Office
- D. Emergency Department Waiting Room
Answer: C
NEW QUESTION # 26
According to ASHRAE Standard 170, which of the following areas within the healthcare setting must have negative pressure relationships to adjacent areas?
- A. ED Waiting Room
- B. Patient Room
- C. Treatment Room
- D. Exam Room
Answer: A
NEW QUESTION # 27
Which of the following is a key role of the HVAC system designer during the Infection Control Risk Assessment process?
- A. Supply air quality data to assess filtration needs
- B. Serve as a resource to the multidisciplinary team
- C. Locate the mechanical spaces within the building
- D. Prepare test and balance reports
Answer: A
NEW QUESTION # 28
A Protective Isolation Room, Surgical Cystoscopic Room, or Bronchoscopy Room shall maintain a MINIMUM room differential pressure of:
- A. 0.10 inch water gauge (25 pascals)
- B. 0.025 inch water gauge (7.5 pascals)
- C. 0.05 inch water gauge (12.5 pascals)
- D. 0.01 inch water gauge (2.5 pascals)
Answer: D
NEW QUESTION # 29
If a hospital is in an area with a very cold climate, which of the following equipment in the central utility plant needs to be redundant with emergency back-up?
- A. Hot water boilers and associated pumps
- B. Chillers and associated pumps
- C. Co-generation units
- D. Snow melt systems
Answer: A
Explanation:
Comprehensive and Detailed Explanation:
Cold Climate Priority: Hot water boilers and pumps are critical for heating in very cold climates, requiring redundancy and backup per ASHRAE Handbook-HVAC Applications for patient safety.
NEW QUESTION # 30
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. $65,000
- C. $127,500
- D. $55,000
Answer: B
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 # 31
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: C
NEW QUESTION # 32
A single level of a medical center provides for inpatient care and measures 202 ft. (61.57 m) by 220 ft. (67.06 m). Which of the following represents the MINIMUM number of smoke compartments that this space must be divided into?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION # 33
In accordance with The Joint Commission's Environment of Care™ requirements, as part of the emergency management plan, healthcare organizations must conduct which of the following to identify potential emergencies?
- A. Federal Emergency Incident Matrix
- B. Infection Control Risk Assessment
- C. Incident Command Probability Index
- D. Hazard Vulnerability Analysis
Answer: D
NEW QUESTION # 34
In accordance with NFPA 110, which of the following statements is true regarding combustion air ventilation ductwork serving a Level 1 Emergency Power Supply System?
- A. Fire dampers are not allowed
- B. Fire dampers must be controlled by a fusible link
- C. Damper blades are not allowed to have rubber seals
- D. Damper actuators must have an audible alarm
Answer: A
NEW QUESTION # 35
Which of the following pathogens is transmitted by direct contact with blood?
- A. Tuberculosis
- B. Pertussis
- C. Aspergillus
- D. Hepatitis
Answer: D
NEW QUESTION # 36
Which of the following is associated with "hot rooms"?
- A. Newborn ICU
- B. Physical Therapy
- C. Nuclear Medicine
- D. Central Plant
Answer: C
Explanation:
Comprehensive and Detailed Explanation:
Hot Rooms: In healthcare, "hot rooms" refer to areas in Nuclear Medicine where radioactive materials (e.g., for imaging) are handled, requiring special HVAC considerations (ASHRAE Handbook-HVAC Applications).
NEW QUESTION # 37
An Airborne Infection Isolation Room is 10 ft. × 12 ft. (3.05 m × 3.66 m) and has an 8 ft. (2.44 m) ceiling. An adjoining anteroom measures 6 ft. × 8 ft. (1.83 m × 2.44 m) with a 7.5 ft. (2.29 m) ceiling height. Airflow measurements reveal: Room supply diffuser: 135 CFM (64 L/s), Exhaust register: 200 CFM (95 L/s), Anteroom supply diffuser: 100 CFM (48 L/s), Anteroom exhaust register: 65 CFM (31 L/s). Which of the following represents the correct patient room air change rate (ACH)?
- A. 12.5 ACH
- B. 13.6 ACH
- C. 14.3 ACH
- D. 15.6 ACH
Answer: A
Explanation:
Comprehensive and Detailed Explanation:
Room Volume: 10 × 12 × 8 = 960 ft³.
ACH Calculation: ACH = (Airflow in CFM × 60) / Room Volume. For AIIRs, ASHRAE 170 uses exhaust airflow (200 CFM) since it determines air changes: ACH = (200 × 60) / 960 = 12,000 / 960 = 12.5 ACH.
Verification: Supply (135 CFM) < Exhaust (200 CFM) ensures negative pressure, consistent with AIIR requirements (12 ACH minimum, Table 7.1).
NEW QUESTION # 38
Energy recovery systems serving Airborne Infectious Isolation Rooms must meet which of the following criteria?
- A. Wheel leakage of less than 0.5%, as determined by an SF6 test performed on the fully operational system in the field
- B. Leakage potential shall be designed to have no more than 5% of the total supply airstream consisting of exhaust air
- C. Supply airstream and exhaust airstream components are separated by an air gap open to the atmosphere
- D. Total effectiveness greater than 50%
Answer: B
NEW QUESTION # 39
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