Actuators

Quiz
•
Design, Education
•
10th Grade
•
Medium
Tracy Sciberras
Used 7+ times
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a DC Motor, the coil of the rotor turns into an electromagnet when
the rotor rotates inside the stator
electricity (current) flows through the coil
the rotor is turned by the axle
the it sits int the field of the stator
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An electromagnet can be made with a coil of wire around a nail if
the wire is magnetized by a compass
the wire has a current running through it
the wire is touching 2 magnet
the nail is touching a battery on the anode
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The greater the number of windings (the number of times it is wrapped around) in an electromagnet's coil
the stronger the magnet is
the less the magnet will pick up
the more current it takes to create the electromagnet
the slower the compass needle moves to the wire
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Relay is an electromagnetically operated switch. It has coil and contacts.
True
False
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The part which creates magnetic field when it is energized to attract the relay's armature is.
Coil
Spring
NO Contact
All of the above
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When the the current flows through the coil of the relay, it will produce magnetic field which will attract the armature to close the NO contact.
True
False
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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