COMPLETE QUESTIONS WITH
VERIFIED CORRECT SOLUTIONS ||
100% GUARANTEED PASS
<LATEST VERSION>
1. Any joint obtained by joining of metal parts with alloys that melt at
temperatures higher than 840°F, but lowerthan the melting temperature of
the parts to be joined, is a _____ joint.(A) brazed(B) fused (D) soldered (C)
welded - ANSWER ✓ A. Is a brazed joint UMC section 2 1 2.0
2. A vessel or arrangement of piping or tubing in which vaporized refrigerant is
liquefied by removal of heat is a _____.(A) compressor (C) evaporator(B)
generator (D) condenser - ANSWER ✓ D. A condenser is the piping which
vaporizes the refrigerant liquefied by removal of heat, UMC Section 2 0 5.0
3. is a _____.(A) compressor (C) evaporator(B) generator (D) condenser -
ANSWER ✓ 18 D 502.0
4. An appliance designed primarily to supply hot water equipped with
automatic controls limiting water - ANSWER ✓ B 1201.2.1.8
5. temperature to a maximum of 210°F is a _____.(A) water heater (C)
expansion tank(B) steam boiler (D) gas heater. - ANSWER ✓ A 507.1.3
6. A cooling coil is to be installed in a duct system containing an existing
furnace heat exchanger. Unless - ANSWER ✓ C 907.1
,7. otherwise listed, the code requires that the air flows first through _____.(A)
the heat exchanger (C) a diverter unit(B) the cooling coil (D) a bypass duct -
ANSWER ✓ C 903.5
8. The space in which any floor furnace is installed shall be accessible by an
opening in the foundation not - ANSWER ✓B 1312.3.2
9. less than _____.(A) 24'' x 24'' (C) 20'' x 20''(B) 24'' x 18'' (D) none of the
above - ANSWER ✓ C 507.2.1
10.... - ANSWER ✓ B 510.7.5
11.Buildings of more than _____ feet in height shall have an inside means of
access to the roof.(A) 14 (C) 15 (B) 16 (D) 20 - ANSWER ✓ C 701.1
12.The compressor should be on a level pad _____ inches above grade. -
ANSWER ✓ 3
13.The electrical disconnect should be in direct line of sight and no more than
____ feet away from the compressor/condenser cabinet. - ANSWER ✓ 50
14.Insulation is wrapped around the: - ANSWER ✓ suction line
15.Frost on the evaporator coil indicates? - ANSWER ✓ The unit should be
shutdown
16.Opening the condenser cabinet to get at the compressor is beyond the "Texas
Standards of Practice". - ANSWER ✓ true
17.Common evaporator coil problems include all the following except?
Dirt, Frost, Radiant burn, Corrosion - ANSWER ✓ radiant burn
18.All coils corrode as they age, and as long as there is not a significant
reduction of heat transfer or airflow, this is not a major problem. - ANSWER
✓ true
, 19.A three-ton air conditioner will generate about ____ gallons of condensate
per hour on a hot humid summer day. - ANSWER ✓ 2
20.Drain piping for air conditioning equipment shall be a minimum of _____
inch(es) nominal pipe size. - ANSWER ✓ 3/4
21.The _____ is the heart of the air conditioning system. - ANSWER ✓
compressor
22.In rooms with supply registers, only the doors should be undercut at least
_____ of an inch to allow air to reach the return registers. - ANSWER ✓ 3/4
23.Reduced air flow can increase the amount of dirt in the air. - ANSWER ✓
true
24.Our "Texas Standards of Practice" require us to perform a detailed duct
system inspection. - ANSWER ✓ false
Sensible Heat - ANSWER ✓ Heat that can be Measured
25.Specific Heat - ANSWER ✓ The Amount of Heat Required to Raise 1 LB of
a Substance 1*F
26.Latent Heat - ANSWER ✓ Heat used to cause change of state.
27.BTU - ANSWER ✓ amount of heat required to raise 1LB of water 1*F
28.One Ton of Refrigeration - ANSWER ✓ 2000 x 144 x 24,288,000
Btu/24hours, and 12,000 Btu/hr
29.A Room Thermostat Should be Mounted - ANSWER ✓ 5 feet from the floor
30.To Provide Proper Oil Return to the Compressor - ANSWER ✓ Suction line
must be pitched towards compressor.
31.What is the External Equalizer on a TXV for? - ANSWER ✓ To offset the
pressure drop across the evaporator.