Title: elt106 tyk ch 3
Course: Open ELT106 Fundamentals of DC/AC

Q: Circular mote is the standard unit for measuring conductor cross-sectional areas.
- True
- False
A: True

Q: A mil equals .01 inches.
- True
- False
A: False

Q: A round conductor that is 1/8th inch in diameter has a cmil area of __________.
- 12.5 cmil
- 125 cmil
- 15625 cmil
- 1562.5 cmil
A: 15625 cmil

Q: A No. 6 conductor has more resistance per foot than a No. 22?
- True
- False
A: False

Q: A No. 10 conductor has a larger cross-sectional area than a No. 12?
- true
- false
A: true

Q: A 20-amp lighting load is connected to a 120-volt source 300 feet away. Calculate how much voltage drop or loss is caused by using a No. 12 aluminum wire? (Remember that the circuit would be 600 feet long!
Also, be sure to use the aluminum wire resistance column and not the copper column.)
- 2.57 volts
- 25.7 volts
- 3.1 volts
- 31 volts
A: 31 volts

Q: Who is a nonprofit company that tests electrical equipment safety features?
- NEC
- UL
- NFPA
- OSHA
A: UL

Q: Which organization is responsible for the study of fire science safety and prevention?
- NEC
- UL
- NFPA
- OSHA
A: NFPA

Q: Which set of standards is used as a minimal safety guide for the installation of electrical equipment?
- NEC
- UL
- NEMA
- OSHA
A: NEC

Q: Which organization is a branch of the U.S. government and is responsible for workplace safety?
- NEC
- UL
- IEEE
- OSHA
A: OSHA

Q: You would most likely use a breadboard for assembling a circuit temporarily.
- True
- False
A: True

Q: Your company needs to produce 200 printed circuit boards (PCBs) the best option for producing would be an automated system?
- True
- False
A: False

Q: To control a lamp from two different locations, you would use SPDT switches.
- True
- False
A: True

Q: To open two different circuits simultaneously, you would use SPDT switches.
- True
- False
A: False

Q: A fuse or circuit breaker provides protection from cross current.
- True
- False
A: True

Q: Fuses and circuit breakers are rated in conductors and voltage.
- true
- false
A: false

Q: The first electric lamp had a(n) __________ filament.
- carbon
- incandescent
- halogen
- tungsten
A: carbon

Q: Which of the following lamps does not conduct through gas?
- incandescent
- flourescent
- neon
- strobe
A: strobe

Q: A filament keeps the current limited in a fluorescent lamp?
- true
- false
A: false

Q: Which of the following is NOT a type of resistor.
- adjustable
- multiplier
- potentiometer
- thermistor
A: multiplier

Q: Film resistors can be classified as thin or thick.
- True
- False
A: True

Q: What is the film resistor substrate made of?
- glass
- ceramic
- silicon
- all of the above
A: all of the above

Q: The numeric value of a resistor is important in determining resistor tolerance.
- True
- False
A: True

Q: What color code would be on a 1200 ohm, 2 watt resistors?
- red
- brown
- both red & brown
- neither red 7 brown
A: both red & brown

Q: A violet color code would be used on a 1.2 ohm resistor?
- True
- False
A: False

Q: A red color code would be present on a 1.2 MΩ resistor?
- True
- False
A: False

Q: The resistance value for the pictured resistor is orange.
- True
- False
A: False