Electronics class 3 Relays
Quiz by Kristie Richardson
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15 questions
Show answers
- Q1A relay is a switch.TrueFalse120s
- Q2What 2 ways can a relay open and close a circuit?electronically or electromechanicallymechanically or electronicallyelectromagnetically or magicallymagnetically or electronically120s
- Q3What is this a schematic drawing for?A relay with a diodea capacitor with a diodea resistor with a diodea transistor with a diode120s
- Q4Most relays are ___________?polar bearspolar oppositespolarizednonplarized120s
- Q5Which one is NOT a term that describes a relay?operating currentcoil voltageunder capacityset voltage120s
- Q6A capacitor _______ ________?stores electricitystores componentsstores magicstores results120s
- Q7Capacitors are measured in ____________?unitsOhmsFaradsmillimeters120s
- Q8Name 3 of the 7 ways to methodically troubleshoot errors.check for damage, check surroundings, check leadscheck component orientation, check your orientation, check your neighbor's orientationcheck voltage, check placement, check connectionscheck yourself, check your neighbor, check your friend120s
- Q9How does a relay work?Relay's do not have any kind of coils in them. The electricity runs around it and the pull and push opens and closes contactsYou can't run electricity through a relay at all because it will blow up and hurt everyone around it.A relay does have a magnet in it but it moves the electricity around it and the magnetic force it creates on the outside is how it opens and closes contacts.When electricity runs through the coil this creates a magnetic force. The pull of the electromagnet opens and closes contacts.120s
- Q10This is a schematic of a capacitor. What kind of capacitor does this represent?variable capacitornon-polarizedpolarizednot a capacitor120s
- Q11Polarized capacitors react very badly to being connected the wrong way around.falsetrue120s
- Q12One frequent breadboarding error is to plug a wire into the wrong row on a breadboard. What can happen when you do this?nothingit will explode all your componentsyou can fry your breadboard120s
- Q13What is this a picture of?i don't knownon-polarized capacitorpolarized capacitorvariable capacitor120s
- Q14Nonpolarized means that you can run electricity in either direction and the relay doesn’t careFalseTrue120s
- Q15What relay term is the minimum voltage that the relay needs to close its switch? This is less ideal than coil voltage.operating currentswitching capacitycoil voltageset voltage120s
