A a hundred,000 BTU/h, Category IV gasoline furnace the usage of 100% outside air provided
by using mechanical way calls for how many cubic toes of combustion air? - ANS-35
A Btu is defined as the quantity of warmth essential to elevate? - ANS-The temperature of one
pound of water 1 diploma F at sea level.
A contracting agency has completed its first 12 months of operations. To keep away from
penalty, how regularly have to the contractor make payroll tax deposits if the weekly tax liability
is $three.250? - ANS-Monthly
A contractor holds licenses concurrently. Which of the statements is accurate? - ANS-The
contractor may additionally handiest have one endorsement consistent with license
A provider technician is attempting to repair a STICKING relay. What need to be done in this
situation? - ANS-Replace it
According the International Mechanical Code, for clothes dryers, make-up air shall be provided
for all installations arduous more than? - ANS-200 CFM
According the Uniform Mechanical Code, each required equipment room for mechanical
refrigerating equipmentshall have provided round two adjoining sides of all transferring
equipment, an unobstructed walking area of NOT less than what length? - ANS-3 toes wide x 6
ft 8 inches high
According to the Air Conditioning and Refrigeration Contractor Licenes Law, the definition of
"Cooling capacity" means the nominal tonnage of compression equipmnt primarily based on
forty degress Fahrenheit suction temperature and ________? - ANS-one hundred and five
ranges F
According to the Internal Revenue Service, annual earnings under what greenback cost does
NOT require to be pronounced on a 1099 form for contractor hires? - ANS-$600
According to the International Mechanical Code, constructing with completely set up accesss
ladders shall preserve unobstructed clearance at the base of the landing measuring? -
ANS-30"X30"
According to the International Mechanical Code, which sort of refrigeration machine mey be
tested and proved tight after set up with air as the check gas? - ANS-R-717
, According to the Texas Contractor Business Reference Manual which of the following listed
does NOT require the license wide variety of the cotractor? - ANS-Business signs at the offcice
location
According to the Uniform Mechanical Code, dangerous proccess piping requires special
provisions while mounted in exit corridors and above other occupancies. What are the MINIMUN
wide variety of modifications per hour for ventilation? - ANS-6
According to the uniform Mechanical Code, what's the ratio of cubic ft to Btu's that defines a
constrained space? - ANS-50 cubic feet according to 1,000 Btus
All of the following are prohibited locations for mechanical refrigerating structures and quantities
there of EXCEPT? - ANS-A space containing electric system
An adjustable V-pulley for a belt pressure motor is moved FURTHUR from the opposite flange.
This change will widen the pulley giving the impact of a smaller diameter pulley. The fan pace
will? - ANS-Decrease
At what head stress need to the regulating valves be set to open with an inlet water temperature
of 75 ranges F that is hooked up on a water-cooled condenser the usage of R-22? - ANS-a
hundred and forty four PSIG
Avoid touch with contaminated lubricant from a hermatic system this is dirty and smells awful
due to the fact it may be? - ANS-Acidic
Choose the perfect description for scroll compressors. - ANS-There is less vibration than from a
reciprocating compressor
Compared to an air-to-air pump, geothermal heat pumps can lessen energy intake with the aid
of over? - ANS-forty%
Coose the kind of control used in condensing temperature. - ANS-Fan biking switch
Exposed optical-fiber raceways set up in hid areas above suspended ceilings used as air
plenums shall? - ANS-Exhibit a flame tour/unfold of five toes or less
Factory-made air ducts NOT installed as a liner internal concrete, tile, or a metal pipe, shall be
kept at the least ________ inches away from earth? - ANS-4 inches
How is a fan motor related electrically to the compressor motor control? - ANS-In parallel and
managed by using thermostat
How much warmness can be REQUIRED to exchange 10 poundsof ice at 32 levels F into water
at eighty tiers F? - ANS-1,920 btu/h