The smallest wire that can be used in branch circuits in a home is ______.
A) No. 12 AWG copper
B) No. 14 AWG copper
C) No. 16 AWG copper
D) No. 18 AWG copper
Give this one a try later!
B) No. 14 AWG copper
In a gas fired furnace, the heat exchanger is placed where?
A) Before the inside fan
B) After the evaporator
C) After the inside fan
D) After the condensing unit
Give this one a try later!
, C) After the inside fan
True or false: the standard practice is to ground the gas meter to the gas rod but
never to use the gas meter as a main source of ground.
Give this one a try later!
True
A device contained inside air Plenum distribution boxes that controls airflow is called:
A) A damper
B) A convector
C) A channel
D) A director
Give this one a try later!
A) A damper
The purpose of the neutral on white wire is to _____________________.
A) Ground the electrical system
B) Complete the circuit
C) Carry the electrical circuit to the various outlets
D) Help the current carrying black wire carry the load
Give this one a try later!
, B) Complete the circuit
Backdraft on a gas furnace can be caused by:
A) No pilot light
B) High fan speed
C) No fan speed
D) A stopped up flue pipe
Give this one a try later!
D) A stopped up flue pipe
Sewer vent pipes must extend through the attic roof and terminate no less than ____
feet above it.
A) 6"
B) 8"
C) 10"
D) 12"
Give this one a try later!
A) 6"
No more than ___ disconnect breakers are allowed to disconnect all power from a
house.
A) 2
B) 5
C) 6
D) 8
, Give this one a try later!
C) 6
The temperature and pressure relief valve on the hot water heater is normally preset
at ______Psi and _____ degrees F.
A) 140 psi/210°F
B) 130 psi/212°F
C) 150 psi/210°F
D) 140 psi/180°F
Give this one a try later!
C) 150 psi/210°F
The minimum inside diameter of the incoming water pipe should be ____ inch.
A) 1/4"
B) 1/2"
C) 3/4"
D) 5/8"
Give this one a try later!
C) 3/4"
Metal flashing and roof valleys should not exceed ____ in length.
A) 6'
B) 8'
A) No. 12 AWG copper
B) No. 14 AWG copper
C) No. 16 AWG copper
D) No. 18 AWG copper
Give this one a try later!
B) No. 14 AWG copper
In a gas fired furnace, the heat exchanger is placed where?
A) Before the inside fan
B) After the evaporator
C) After the inside fan
D) After the condensing unit
Give this one a try later!
, C) After the inside fan
True or false: the standard practice is to ground the gas meter to the gas rod but
never to use the gas meter as a main source of ground.
Give this one a try later!
True
A device contained inside air Plenum distribution boxes that controls airflow is called:
A) A damper
B) A convector
C) A channel
D) A director
Give this one a try later!
A) A damper
The purpose of the neutral on white wire is to _____________________.
A) Ground the electrical system
B) Complete the circuit
C) Carry the electrical circuit to the various outlets
D) Help the current carrying black wire carry the load
Give this one a try later!
, B) Complete the circuit
Backdraft on a gas furnace can be caused by:
A) No pilot light
B) High fan speed
C) No fan speed
D) A stopped up flue pipe
Give this one a try later!
D) A stopped up flue pipe
Sewer vent pipes must extend through the attic roof and terminate no less than ____
feet above it.
A) 6"
B) 8"
C) 10"
D) 12"
Give this one a try later!
A) 6"
No more than ___ disconnect breakers are allowed to disconnect all power from a
house.
A) 2
B) 5
C) 6
D) 8
, Give this one a try later!
C) 6
The temperature and pressure relief valve on the hot water heater is normally preset
at ______Psi and _____ degrees F.
A) 140 psi/210°F
B) 130 psi/212°F
C) 150 psi/210°F
D) 140 psi/180°F
Give this one a try later!
C) 150 psi/210°F
The minimum inside diameter of the incoming water pipe should be ____ inch.
A) 1/4"
B) 1/2"
C) 3/4"
D) 5/8"
Give this one a try later!
C) 3/4"
Metal flashing and roof valleys should not exceed ____ in length.
A) 6'
B) 8'
