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NEW QUESTION # 51
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. $55,000
- B. $117,500
- C. $65,000
- D. $127,500
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 # 52
Which of the following air-to-air heat recovery strategies will MOST likely have the highest heat transfer efficiency?
- A. Runaround Coil
- B. Heat Pipe
- C. Enthalpy Wheel
- D. Plate Type
Answer: C
NEW QUESTION # 53
What is the recommended face velocity of Group E diffusers in operating rooms?
- A. 100 to 110 fpm (0.51 to 0.56 m/s)
- B. 5 to 15 fpm (0.03 to 0.08 m/s)
- C. 50 to 60 fpm (0.25 to 0.31 m/s)
- D. 25 to 35 fpm (0.13 to 0.18 m/s)
Answer: D
Explanation:
Comprehensive and Detailed Explanation:
Group E Diffusers: ASHRAE 170 and the HVAC Design Manual recommend 25-35 fpm for laminar flow diffusers in ORs to maintain low turbulence and effective contaminant removal over the surgical field.
NEW QUESTION # 54
Which of the following is a quench duct associated with?
- A. Emergency Generator Room
- B. Operating Room
- C. Medical Gas Storage Room
- D. MRI Room
Answer: D
NEW QUESTION # 55
An Operating Room ventilation system must monitor and automatically:
- A. Control the dew point within the room
- B. Set back the ventilation system when the surgical suite is not in use
- C. Alarm when waste anesthetic gas levels are elevated
- D. Prevent recirculation of smoke within the surgical suite
Answer: C
NEW QUESTION # 56
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. Co-generation units
- B. Hot water boilers and associated pumps
- C. Snow melt systems
- D. Chillers and associated pumps
Answer: B
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 # 57
When designing a hospital, which of the following is the energy standard that should be reviewed?
- A. ASHRAE 62.1
- B. ASHRAE 90.1
- C. ASHRAE 62.2
- D. ASHRAE 90.2
Answer: B
NEW QUESTION # 58
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: B
NEW QUESTION # 59
In accordance with ASHRAE Standard 170, what is the MINIMUM outdoor air change rate for a patient room in a nursing unit?
- A. 4 ACH
- B. 12 ACH
- C. 6 ACH
- D. 2 ACH
Answer: D
Explanation:
Comprehensive and Detailed Explanation:
Outdoor Air: ASHRAE 170, Table 7.1, specifies 2 ACH outdoor air minimum for patient rooms in nursing units, with a total of 6 ACH (remaining from recirculation).
NEW QUESTION # 60
Which of the following represents the MINIMUM distance that must separate a fresh air intake and an exhaust system outlet?
- A. 15 ft. (4.57 m)
- B. 20 ft. (6.10 m)
- C. 25 ft. (7.62 m)
- D. 30 ft. (9.14 m)
Answer: C
Explanation:
Comprehensive and Detailed Explanation:
Separation Requirement: ASHRAE Standard 170, Section 6.3.2, and ASHRAE 62.1 specify a minimum 25 ft separation between fresh air intakes and exhaust outlets to prevent re-entrainment of contaminants.
NEW QUESTION # 61
Which of the following is a key consideration of the Infection Control Risk Assessment Mitigation process when applied to a hospital renovation project?
- A. Determining the location of Isolation Rooms
- B. Establishing the contractor qualifications
- C. Identification of the type of finishes required
- D. Protection from construction debris
Answer: D
NEW QUESTION # 62
Which of the following ASHRAE Standards provides ventilation design parameters for operating rooms?
- A. Standard 55
- B. Standard 170
- C. Standard 62.1
- D. Standard 90.1
Answer: B
NEW QUESTION # 63
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. Hazard Vulnerability Analysis
- B. Incident Command Probability Index
- C. Infection Control Risk Assessment
- D. Federal Emergency Incident Matrix
Answer: A
NEW QUESTION # 64
Environmental conditions, systems, and physical plant equipment are BEST monitored by a:
- A. Facility rounds checklist program
- B. Building operations staff member
- C. Fire alarm system
- D. Building automation system
Answer: D
NEW QUESTION # 65
Which of the following types of sterilizers requires an exhaust grille?
- A. Gamma radiation
- B. Glass bead
- C. Ethylene oxide
- D. Ultrasonic
Answer: C
NEW QUESTION # 66
Which of the following standards requires a machinery room when the maximum amount of refrigerant per the standard is exceeded?
- A. ASHRAE Standard 62.1
- B. ASHRAE Standard 34
- C. ASHRAE Standard 15
- D. ASHRAE Standard 170
Answer: C
NEW QUESTION # 67
The Infection Control Risk Assessment Process addresses the:
- A. Number of linen rooms needed
- B. Water systems to limit Legionella
- C. Required knowledge level of nursing staff
- D. Cost of construction
Answer: B
NEW QUESTION # 68
A Protective Isolation Room, Surgical Cystoscopic Room, or Bronchoscopy Room shall maintain a MINIMUM room differential pressure of:
- A. 0.05 inch water gauge (12.5 pascals)
- B. 0.025 inch water gauge (7.5 pascals)
- C. 0.01 inch water gauge (2.5 pascals)
- D. 0.10 inch water gauge (25 pascals)
Answer: C
NEW QUESTION # 69
Which of the following describes the primary difference between the design intent for the air distribution in an Operating Room compared to a standard Patient Room?
- A. The supply diffusers in an Operating Room provide at least 12 ACH for maximum dilution of airborne contaminants
- B. The supply diffusers in an Operating Room direct a unilateral downwards flow of air towards the patient
- C. The supply diffusers in a Patient Room provide at least 12 ACH for maximum dilution of airborne contaminants
- D. The supply diffusers in a Patient Room provide a unilateral downwards flow of air towards the patient
Answer: B
Explanation:
Comprehensive and Detailed Explanation:
Operating Room (OR): ASHRAE Standard 170, Section 7.4.1, requires ORs to use laminar (unilateral) downward airflow from non-aspirating diffusers over the surgical table (20 ACH minimum, not 12). This minimizes contamination of the sterile field.
Patient Room: Table 7.1 specifies 6 ACH total (2 outdoor) with mixed airflow, not unilateral downward flow, for general ventilation and comfort.
Option Analysis:
A: Incorrect-Patient rooms use mixed airflow, not unilateral.
B: Incorrect-ORs require 20 ACH, not 12, and focus on laminar flow, not just dilution.
C: Incorrect-Patient rooms require 6 ACH, not 12.
D: Correct-unilateral downward flow is the primary OR design intent.
NEW QUESTION # 70
The significance of skin squames to healthcare HVAC&R design is that skin squames are associated with:
- A. Interference with the proper operation of fluoroscopy units
- B. Contamination of sterile fields in operating rooms
- C. Compromised efficiency of ultraviolet germicidal irradiation in sealed rooms
- D. Excessive loading of filtration systems
Answer: B
NEW QUESTION # 71
Variable Air Volume (VAV) systems are BEST used in which of the following areas?
- A. Operating Room
- B. Microbiology Lab
- C. Admissions Office
- D. Emergency Department Waiting Room
Answer: C
NEW QUESTION # 72
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