The coil of a relay is an - Study guides, Class notes & Summaries
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IEC Year 3 Complete Set Exam Study & Practice Questions With Verified Correct Answers | Updated
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IEC Year 3 Complete Set Exam 
Study & Practice Questions With 
Verified Correct Answers | Updated 
Which of the following is an example of a load? 
I. Relay Coil 
II. Solenoid 
III. Pilot Light 
Select one: 
a. I, II & III 
b. I only 
c. III only 
d. I & II only 
e. II only - ANSWER : a. I, II & III 
A qualified person must be trained in the skills and techniques to 
determine nominal voltage. 
Select one: 
a.True 
b.False - ANSWER : a. true 
A(n) ___ uses voltages in the range of 50 to 500...
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Stationary Engineer Electric Exam Questions With Correct Answers Latest 2024/2025 (Graded A+)
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Stationary Engineer Electric Exam Questions With Correct Answers Latest 2024/2025 (Graded A+) A 10-ohms and 20-ohms resistor are connected in parallel. The total line current 
drawn by this parallel combination is 30 amps. Under these conditions, the line 
voltage will be ____________ volts. - Answer 200 
A 20-ohm resistor is connected in series with a parallel combination of two 
resistors, one of which is 10-ohms, the other 40-ohms. If the voltage across the 
parallel combination is 40 volts, ...
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HVAC Excellence - ELECTRICITY Exam Questions and Answers Already Passed
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HVAC Excellence - ELECTRICITY Exam 
Questions and Answers Already Passed 
 
Current flow is: The flow of electrons in the circuit. 
 
Impedance is: Opposition to alternating current flow. 
 
Like charges; repel each other. 
 
Any material that will readily release electrons is called; A conductor 
 
The symbol for current is; I 
 
Which of the following materials would be best suited for use as a semi-conductor? silicon 
 
The safety ground conductor is usually color coded; green or bare. 
 
An ...
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CSLB C10 Test 1 | 120 Questions with 100%Correct Answers Already Passed.
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CSLB C10 Test 1 | 120 Questions with 100%Correct Answers Already Passed. 
What is the minimum working clearance from an electrical panel under 600 V? 
36" 
Voltage drop in wire is a function of: 
Wire gauge, Length of wire, Current flow in the wire 
A 12-volt direct current, 13-watt fluorescent light is controlled by a photocell. The average daily 
on-time is 12 hours per day. How many watt-hours are consumed by the light on an average day? 
156 
Where may you use nonmetallic-sheathed cable? 
i...
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CSLB C10 Test 1 | 120 Questions with 100%Correct Answers Already Passed.
- Exam (elaborations) • 39 pages • 2024
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CSLB C10 Test 1 | 120 Questions with 100%Correct Answers Already Passed. 
What is the minimum working clearance from an electrical panel under 600 V? 
36" 
Voltage drop in wire is a function of: 
Wire gauge, Length of wire, Current flow in the wire 
A 12-volt direct current, 13-watt fluorescent light is controlled by a photocell. The average daily 
on-time is 12 hours per day. How many watt-hours are consumed by the light on an average day? 
156 
Where may you use nonmetallic-sheathed cable? 
i...
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HVAC Final Exam Electrical For Air Conditioning Questions and Answers 100% Pass
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HVAC Final Exam Electrical For Air Conditioning 
Questions and Answers 100% Pass 
When using a low voltage T-stat for heating and cooling, when would there be a jumper 
between Rh and Rc? 
Select one: 
a. When using a single transformer system 
b. When heating with an oil boiler 
c. When heating with a gas boiler 
d. When using a two transformer system - Correct Answer ️️ -A) When Using a single 
transformer system 
Digital thermostats usually display temperature, time of day, programming an...
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BNSF Session 4 Exam Questions And Answers (Verified And Updated)
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BNSF Session 4 Exam Questions And Answers (Verified And Updated) 
If you have a track relay the two common resistance of the coil are ________ Ohms and _________ and are usually supplied with ________ volts? 
2 Ohms, 4 Ohms, and 1-2Volts 
 
 
If you have a line relay the two common resistances of the coil are ________ Ohms and ________ Ohms and are usually supplied with _________ volts? 
500 Ohms, 1000 Ohms, and 10-14 Volts 
 
 
In CTC territory, a hand throw switch is not sufficient protection,...
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HVAC Final Exam Electrical For Air Conditioning Questions & Answers Accurate 100%
- Exam (elaborations) • 22 pages • 2024
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When using a low voltage T-stat for heating and cooling, when would there be a jumper between Rh and Rc? 
Select one: 
a. When using a single transformer system 
b. When heating with an oil boiler 
c. When heating with a gas boiler 
d. When using a two transformer system - ANSWER A) When Using a single transformer system 
 
Digital thermostats usually display temperature, time of day, programming and operating status. 
Select one: 
True 
False - ANSWER True 
 
With the fan switch in the on posit...
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S2 LICENSE EXAM 2024 WITH 100% CORRECT ANSWERS
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A thermal device that opens it's contacts when a motor heater coil uses too much current is a? correct answersTHEMAL RELAY 
 
What is the required ventilation for a 15,000 sq. ft. Collage Auditorium? correct answers33,750 CFM (2.25 CFM/Cu. Ft.) 
 
True or False? Like temperature's in all rooms would be a possible result of an unbalanced duct system? correct answersFalse (Result of a balanced system) 
 
What material is not to be used to vent low heat appliances? correct answersMasonry (Residen...
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HVAC Work Ready Exam - Electrical Exam Questions And Answers
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HVAC Work Ready Exam - Electrical Exam Questions And Answers 
 
 
Resistance is? 
Opposition to current flow 
An electron has? 
A negative charge 
R 
Impedance is? 
Opposition to alternating current flow 
Current flow is? 
Electron flow in a circuit 
The safety ground conductor is usually color coded? 
Green or bare. 
Like charges? 
Repel each other 
The symbol for current is? 
I 
Any material that will readily release electrons is called? 
A conductor 
Which of the following materials would be...
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