5. A thermostat of an air conditioner working in cool mode was working on a 3°C differential. If it "cut out" at 22°C when would it "cut in"? a) b) c) d) At 19°C At 25°C At 21°C It would not cut in till machine was isolated
5. A thermostat of an air conditioner working in cool mode was working on a 3°C differential. If it "cut out" at 22°C when would it "cut in"? a) b) c) d) At 19°C At 25°C At 21°C It would not cut in till machine was isolated
Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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![5. A thermostat of an air conditioner working in cool mode was working on a 3°C differential. If it "cut out" at
22°C when would it "cut in"?
a)
b)
c)
(p)
It would not cut in till machine was isolated
At 19°C
At 25°C
At 21°C
6. Which of the following statements best describes the operation of a simmer stat?
Controls the load with a small differential and great sensitivity
Is a highly accurate closed loop system.
Controls the load with a strut and tube assembly and internal heater element
Controls the load by cyclic action that operates according to the heat level dissipated by the
switches internal heating element.
a)
b)
7. Zero voltage switching (ZVS) is a method of controlling the applied voltage to heating elements by which
thyristors are used to regulate the supply voltage.ZVS is the preferred method of control as compared to
standard thyristor control because?
ZVs reduces the voltage drop across the Thyristor
Zvs reduces Radio frequency Interference(RFI)
The firing circuit for the Thyristor is less complicated
All of the above
a)
b)
c)
d)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F83b2bb03-8838-4d10-9ce1-1e1d8e7196bc%2F11dc9b0f-4e4c-4daa-946f-822db04ac818%2F5nkfi4f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:5. A thermostat of an air conditioner working in cool mode was working on a 3°C differential. If it "cut out" at
22°C when would it "cut in"?
a)
b)
c)
(p)
It would not cut in till machine was isolated
At 19°C
At 25°C
At 21°C
6. Which of the following statements best describes the operation of a simmer stat?
Controls the load with a small differential and great sensitivity
Is a highly accurate closed loop system.
Controls the load with a strut and tube assembly and internal heater element
Controls the load by cyclic action that operates according to the heat level dissipated by the
switches internal heating element.
a)
b)
7. Zero voltage switching (ZVS) is a method of controlling the applied voltage to heating elements by which
thyristors are used to regulate the supply voltage.ZVS is the preferred method of control as compared to
standard thyristor control because?
ZVs reduces the voltage drop across the Thyristor
Zvs reduces Radio frequency Interference(RFI)
The firing circuit for the Thyristor is less complicated
All of the above
a)
b)
c)
d)
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