HVAC Air Distribution System Actual Exam for Exam Questions with 100%
Correct Answers | Verified | Updated (Actual Exam) LATEST VERSION!!
The lowest pressure level withing an air distribution system is found at the? - (ANSWER)Input to the
blower.
The velocity pressure in a air duct equals the? - (ANSWER)The total pressure minus the static pressure.
At sea level, every inch of Earth as an absolute pressure of? - (ANSWER)14.7psi.
Air systems used only for heating usually require_______ systems used for both heating and cooling. -
(ANSWER)Less airflow than.
Forced-air systems designed for cooling require about_______ of airflow per ton of cooling. -
(ANSWER)400 cfm +_50
Air distribution air systems considered to be high-pressure systems have pressure greater than? -
(ANSWER)3.5 in W.C.
When a change in the volume airflow in cfm is know, Fan law 1 can be used to calculate the? -
(ANSWER)New value for rpm.
The total pressure loss in an air duct distribution system and its components (excuding the air handler) is
called the? - (ANSWER)External static pressure loss.
Air systems with high sidewalls or cealling air outlets normally are designed to? - (ANSWER)Favor cooling
over heating.
Fiberglass duct? - (ANSWER)Can be use instead metal duct in many applications.
Correct Answers | Verified | Updated (Actual Exam) LATEST VERSION!!
The lowest pressure level withing an air distribution system is found at the? - (ANSWER)Input to the
blower.
The velocity pressure in a air duct equals the? - (ANSWER)The total pressure minus the static pressure.
At sea level, every inch of Earth as an absolute pressure of? - (ANSWER)14.7psi.
Air systems used only for heating usually require_______ systems used for both heating and cooling. -
(ANSWER)Less airflow than.
Forced-air systems designed for cooling require about_______ of airflow per ton of cooling. -
(ANSWER)400 cfm +_50
Air distribution air systems considered to be high-pressure systems have pressure greater than? -
(ANSWER)3.5 in W.C.
When a change in the volume airflow in cfm is know, Fan law 1 can be used to calculate the? -
(ANSWER)New value for rpm.
The total pressure loss in an air duct distribution system and its components (excuding the air handler) is
called the? - (ANSWER)External static pressure loss.
Air systems with high sidewalls or cealling air outlets normally are designed to? - (ANSWER)Favor cooling
over heating.
Fiberglass duct? - (ANSWER)Can be use instead metal duct in many applications.
