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I love deer meat.
Is a fusse plastic or metal?
---Frank---
What i have a kid?
Technicians
100
the horizontal pipe that connects the furnace to the chimney is called the ___________.
vent connenetor
100
How should plastic flue pipe be assembled?
GLUE
100
Radiant heat is transferred by ______.
infrared rays
100
The limit switch is used on the electric element assebembly to ______.
open the circuit to the element if the furnace overheats
100
If there is too much primary air,the gas flame can ____.
get blown out. make noise.
200
Which type of vent does NOT have double-wall construction?
PVC
200
The benefits to eletric baseboard heating are that______.
Each room can be controlled individally. they are inexpensive to install.
200
Quartz and glass panel electric units are classified as ____.
radiant heaters.
200
eletric baseboard heaters are classified as ______.
natural draft convectors.
200
Primary air adjusters on atmospheric type gas burners are usually _______.
butterfly shutters/ sliding sleeves/ spoiler screws.
300
How many equivalant feet does a 90 degree elbow add to the lenght of a pvc vent?
What is 10
300
The resistance wire used in electric heating elements is usally_________.
nickel chromium
300
A 10 kw heating element, operating on rated 240 v, will have a btu/h out put of ______.
34,130
300
True/false For maximum element life, the element must have suufficient air over all parts of the element to prevent any part of the element from glowing red.
True
300
A furnace with a vertical air flow through the heat exchanger and the blower compartment beneath the heat exchanger is called a ______.
unflow.
400
How many cubic feet of air must be supplied to burn 1 cubic feet of air?
10 cubic feet
400
Wire size is determind by which of the following? a. voltage b. amperage c. ohms d. watts
b. amperage
400
Low voltage wire has an insulation value for which of the follwing?
What is; 50 v
400
Spark ignition is important for roof top or package units located outdoors because of _________ problems.
wind.
400
In a conventional gas furnace, the hot flue gases are vented by ______.
natural convection.
500
Why is it necessary to have a pilot saftey shutoff on a gas furnace
What is; In case the pilot goes out.
500
What is the typical pressure for a natural gas furnace manifold?
What is; 3.5 w.c
500
All units have only one low- voltage power supply true or false.
What is; false.
500
On a gas furnace, what energizes the blower motor in the heat mode?
What is;; limit switch
500
A direct-spark ignition (Dsi) system is designed to _____.
What is; ignite the main burner.