CHFM Building Utility Systems 5

Question 1

What is the role of a 'zone valve' in a medical gas system according to NFPA 99?

Accepted Answer

Isolate gas supply to a specific area without affecting adjacent zones

Answer

Regulate operating pressure for each gas outlet

Answer

Filter particulates from the medical gas stream

Answer

Monitor gas purity and trigger alarms on contamination

Question 2

A facility manager is reviewing a chiller plant's coefficient of performance (COP). If a chiller produces 400 tons of cooling while consuming 400 kW of electrical power, what is the COP?

Accepted Answer

5.27

Answer

3.5

Answer

4.2

Answer

6.0

Question 3

Which type of air filtration is required in areas with immunocompromised patients, such as bone marrow transplant units, per ASHRAE 170?

Accepted Answer

HEPA filtration at 99.97% efficiency

Answer

MERV 8 pre-filters only

Answer

MERV 13 final filters

Answer

Carbon activated adsorption filters

Question 4

In a hospital's storm water management system, what is the primary purpose of a detention basin?

Accepted Answer

Temporarily hold runoff to reduce peak discharge rate to municipal systems

Answer

Treat storm water to potable quality for reuse

Answer

Prevent backflow from municipal storm sewers into the facility

Answer

Filter sediment before storm water enters sanitary sewers

Question 5

What is the purpose of a reduced pressure zone (RPZ) backflow preventer in a healthcare facility's plumbing system?

Accepted Answer

Provide the highest level of protection against backflow into the potable supply

Answer

Reduce incoming water pressure to safe fixture levels

Answer

Prevent cross-connection between hot and cold water supplies

Answer

Limit water flow rate to conserve usage

Question 6

A facility manager is troubleshooting a pneumatic tube system that is losing carrier velocity. Which component is most likely faulty?

Accepted Answer

The blower or vacuum/pressure generating unit

Answer

Diverter valves at junction points

Answer

Zone control panels at each station

Answer

Carrier tracking sensors in the tube network

Question 7

Under The Joint Commission (TJC) Environment of Care standards, how frequently must emergency eyewash and shower stations in healthcare facilities be tested?

Accepted Answer

Weekly

Answer

Daily

Answer

Monthly

Answer

Annually