What is an example of a standard building management system (BMS) protocol?
A. IPV6
B. TCP/IP
C. MODBUS
D. 10/100 BASE-T
An infrared scan of cabling can detect what two problems? (Choose two.)
A. An overloaded circuit
B. A loose connection
C. Compatibility errors
D. Electrical interference
What are three benefits of Inergen? (Choose three.)
A. It is non-conductive.
B. It has zero ozone depletion potential.
C. It has a low pressure delivery system.
D. It requires less storage tanks than Halon.
E. It is safe to discharge in an occupied area.
What is an advantage of choosing a four-post open frame rack over a two-post open frame rack?
A. Lower cost
B. Smaller footprint
C. Easier assembly
D. Increased strength
How do enclosures improve rack system cooling?
A. By improving natural air flow
B. By improving fire suppression
C. By allowing hot and cold air to mix together
D. By preventing hot and cold air from mixing together
Which type of humidification system uses quartz lamps extended over an open pool of water to release water vapor?
A. Infrared humidifier
B. Ultrasonic humidifier
C. Electromagnetic humidifier
D. Steam canister humidifier
Cooling towers are a typical component of which heat rejection system?
A. Water cooled system
B. Glycol cooled system
C. Air cooled split system
D. Air cooled self-contained system
What does the CFD acronym stand for?
A. Certified Field Dichotomy
B. Circular Flow Determination
C. Computational Finite Deviation
D. Computational Fluid Dynamics
The rear of an IT equipment rack is fitted with a duct that is connected to a drop ceiling plenum; the plenum is connected by a duct to the perimeter CRAC unit. The CRAC unit discharges air into a raised floor. The IT equipment rack is located above a hole in the raised floor which allows conditioned air to enter the rack.
This is an example of which type of air distribution system?
A. Flooded supply, fully ducted return
B. Locally ducted supply, flooded return
C. Flooded supply, locally ducted return
D. Fully ducted supply, fully ducted return
What is required for the transfer of heat from one object to another?
A. A difference in airflow
B. A difference in volume
C. A difference in pressure
D. A difference in temperature
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