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ESCO Exams Pack Questions & 100% Verified Answers | Latest Update | Already Graded A+
ESCO Exams Pack Questions & 100% Verified Answers | Latest Update | Already Graded A+
[Show more]ESCO Exams Pack Questions & 100% Verified Answers | Latest Update | Already Graded A+
[Show more]Before working on an electric furnace the tech should 
: Review diagram, remove jewelry, and follow safety procedures. ALL OF THE 
ABOVE. 
A GFCI circuit breaker 
: detects current leaks to groound 
the conductor in an electric heat element is usually made of 
: Nichrome 
An example of resistive lo...
Preview 3 out of 17 pages
Add to cartBefore working on an electric furnace the tech should 
: Review diagram, remove jewelry, and follow safety procedures. ALL OF THE 
ABOVE. 
A GFCI circuit breaker 
: detects current leaks to groound 
the conductor in an electric heat element is usually made of 
: Nichrome 
An example of resistive lo...
Heat which causes a change in temperature of a substance is called 
: Sensible heat 
Heat added to a substance without a rise in temperature 
: Latent heat 
Heat added to the refrigerant in a vapor state after the evaporation process is called 
: Superheat 
Scroll compressor move refrigerant by 
: I...
Preview 3 out of 16 pages
Add to cartHeat which causes a change in temperature of a substance is called 
: Sensible heat 
Heat added to a substance without a rise in temperature 
: Latent heat 
Heat added to the refrigerant in a vapor state after the evaporation process is called 
: Superheat 
Scroll compressor move refrigerant by 
: I...
What is current flow? 
: D.The flow of electrons in a circuit 
What is impedance? 
: A.Opposition to alternating current 
Like charges will 
: B.Repel each other 
Any material that will readily release electrons is called: 
: B.A conductor 
The symbol for current is: 
: B. I 
Electricity can produce...
Preview 3 out of 16 pages
Add to cartWhat is current flow? 
: D.The flow of electrons in a circuit 
What is impedance? 
: A.Opposition to alternating current 
Like charges will 
: B.Repel each other 
Any material that will readily release electrons is called: 
: B.A conductor 
The symbol for current is: 
: B. I 
Electricity can produce...
1. A gas furnace is to be installed in a garage. The burners and ignition sources must be 
located ______ above the floor. 
A: 6 inches 
B: 12 inches 
C: 18 inches 
D: 24 inches 
: C: 18 inches 
2. A good description of how hi-metai fan switch operates the blower motor on a gas 
furnace is: 
A: te...
Preview 4 out of 34 pages
Add to cart1. A gas furnace is to be installed in a garage. The burners and ignition sources must be 
located ______ above the floor. 
A: 6 inches 
B: 12 inches 
C: 18 inches 
D: 24 inches 
: C: 18 inches 
2. A good description of how hi-metai fan switch operates the blower motor on a gas 
furnace is: 
A: te...
An air-to-air heat pump has many of the same components as an air conditioning 
system. The major difference is that a heat pump also has an 
: Reversing valve 
What is the difference between "demand defrost" and "timed defrost"? 
: Demand defrost happens only when needed and timed defrost is b...
Preview 3 out of 17 pages
Add to cartAn air-to-air heat pump has many of the same components as an air conditioning 
system. The major difference is that a heat pump also has an 
: Reversing valve 
What is the difference between "demand defrost" and "timed defrost"? 
: Demand defrost happens only when needed and timed defrost is b...
using an ohmmeter, there is 120 VAC between high speed and ground wires, this 
indicates 
: open 
if temperature rise is too high... 
: increase fan speed 
how many of the 3 OSHA conditions defining confined spaces must be met 
: all 3 
what causes the temperature limit safety switch to shut off th...
Preview 2 out of 11 pages
Add to cartusing an ohmmeter, there is 120 VAC between high speed and ground wires, this 
indicates 
: open 
if temperature rise is too high... 
: increase fan speed 
how many of the 3 OSHA conditions defining confined spaces must be met 
: all 3 
what causes the temperature limit safety switch to shut off th...
Heat which causes a change in temperature of a substance is called 
: Sensible Heat 
Heat added to a substance without a rise in temperature is called 
: Latent Heat 
Heat added to refrigerant in a vapor state after the evaporation process is called 
: Superheat 
A scroll compressor moved refrigeran...
Preview 3 out of 16 pages
Add to cartHeat which causes a change in temperature of a substance is called 
: Sensible Heat 
Heat added to a substance without a rise in temperature is called 
: Latent Heat 
Heat added to refrigerant in a vapor state after the evaporation process is called 
: Superheat 
A scroll compressor moved refrigeran...
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