Updated: Jun 24, 2026
No. of Questions: 116 Questions & Answers with Testing Engine
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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 rise
D) The relative humidity will fall
2. What is the recommended face velocity of Group E diffusers in operating rooms?
A) 50 to 60 fpm (0.25 to 0.31 m/s)
B) 100 to 110 fpm (0.51 to 0.56 m/s)
C) 25 to 35 fpm (0.13 to 0.18 m/s)
D) 5 to 15 fpm (0.03 to 0.08 m/s)
3. Which of the following is the recommended location for Group E (non-aspirating) air diffusers in Operating Rooms?
A) In the center of the ceiling over the surgical table
B) In the substerile ceiling
C) High on the sidewall on at least two opposite walls
D) On the perimeter of the room outside of the lights
4. Which of the following control methods offers the MOST building information versatility in controls and building management?
A) Electric control systems
B) Electronic control systems
C) Pneumatic controls
D) Direct digital control
5. The isolation room is supplied with 300 cfm (142 L/s) of HEPA filtered air. The return air grille is located in the ceiling and has been balanced to 150 cfm (71 L/s). The room is monitored with a differential pressure sensor, and the sensor is sending an alarm signal to the nurse's station. Which of the following BEST describes the problem?
A) This is a Protective Environment Room with inadequate toilet room exhaust of 25 cfm (12 L/s)
B) This is an Airborne Infection Isolation Room with the door to the corridor propped open
C) This is a Protective Environment Room with the door to the corridor propped open
D) This is an Airborne Infection Isolation Room with inadequate toilet room exhaust of 25 cfm (12 L/s)
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: C | Question # 3 Answer: A | Question # 4 Answer: D | Question # 5 Answer: D |
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