COSC EXAM 2 QUESTIONS AND
ANSWERS 2026 VERIFIED.
Optimal indoor humidity range - ANS 30 percent to 60 percent
Fire suppression system pipes - ANS Can contain air water or NFPA-approved agent (all of the
above)
Openings through building envelope - ANS Penetrations
Standard outlet voltage - ANS 120 volts
Device that converts electricity to rotation - ANS Motor
Opposite of generic specification - ANS Specific specification
Condenser water loop cools - ANS Refrigerant
Condenser water loop type - ANS Open loop
Chilled water supplies - ANS AHU coil
Chilled water loop type - ANS Closed loop
@COPYRIGHT ALL RIGHTS RESERVED PAGE 1 OF 5
, Vapor barrier required - ANS Beneath slab-on-grade
Vapor barrier not required - ANS Beneath structural slab
Heat transfer device - ANS Heat exchanger
Heat exchanger in AHU - ANS Coil
If you cannot measure it - ANS You cannot manage it
Cooling tower - ANS Large outdoor heat rejection device using fans and ambient air
Check valve - ANS Allows flow in one direction only
Device that moves air - ANS Fan or blower
Emergency generator transfer time - ANS 10 seconds
Standby generator transfer time - ANS 60 seconds
Three chiller loops - ANS Refrigerant condenser water chilled water
Refrigerant loop type - ANS Closed
Condenser water loop type - ANS Open
Chilled water loop type - ANS Closed
@COPYRIGHT ALL RIGHTS RESERVED PAGE 2 OF 5
ANSWERS 2026 VERIFIED.
Optimal indoor humidity range - ANS 30 percent to 60 percent
Fire suppression system pipes - ANS Can contain air water or NFPA-approved agent (all of the
above)
Openings through building envelope - ANS Penetrations
Standard outlet voltage - ANS 120 volts
Device that converts electricity to rotation - ANS Motor
Opposite of generic specification - ANS Specific specification
Condenser water loop cools - ANS Refrigerant
Condenser water loop type - ANS Open loop
Chilled water supplies - ANS AHU coil
Chilled water loop type - ANS Closed loop
@COPYRIGHT ALL RIGHTS RESERVED PAGE 1 OF 5
, Vapor barrier required - ANS Beneath slab-on-grade
Vapor barrier not required - ANS Beneath structural slab
Heat transfer device - ANS Heat exchanger
Heat exchanger in AHU - ANS Coil
If you cannot measure it - ANS You cannot manage it
Cooling tower - ANS Large outdoor heat rejection device using fans and ambient air
Check valve - ANS Allows flow in one direction only
Device that moves air - ANS Fan or blower
Emergency generator transfer time - ANS 10 seconds
Standby generator transfer time - ANS 60 seconds
Three chiller loops - ANS Refrigerant condenser water chilled water
Refrigerant loop type - ANS Closed
Condenser water loop type - ANS Open
Chilled water loop type - ANS Closed
@COPYRIGHT ALL RIGHTS RESERVED PAGE 2 OF 5
