101 Basic Series - Module 18 - Post Assessment
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1
Terminal blocks can be added or pulled off the rail but you have to move the other terminations.
2
The number of poles on a relay, depending on its design, can go to a maximum of 12 poles.
3
Because the mounting rail dimensions differ on NEMA terminal blocks, they are not easily interchangeable between manufacturers.
4
____ is recommended for applications where the continuous operating temperature is between 110 and 140C.
5
The flexibility of terminal blocks allows wiring to be centralized, making it easier to maintain complex control circuits.
6
The clamping device secures the wire and makes an electrical connection between the wire and the current bar.
7
With the ____ method of connection to a terminal block, the wire is held in place with a metallic plate when the screw is tightened.
8
Power is removed from the timer, and a preset period of time passes before the contacts return to their normal state when using a(n)____ timing function.
9
When a relay contact is Normally Open (NO), there is an open contact when the relay is energized.]
10
General-purpose relays operate with AC or DC current, at common voltages (12V to 230V), and at currents from 2A to ____.
11
The____ is the portion of a solid state relay activated when a voltage higher than its pick-up voltage is applied.
12
The body of a terminal block insulates the wire termination to maximize heat generated by current passing through the wire.
13
Accessories, such as additional poles, transient suppressors, etc, can be added to general purpose relays.
14
Terminal blocks are classified as DIN (IEC) or NEMA.
15
A single-break contact breaks the circuit in one place, while a double-break contact does it in two.
16
When a relay contact is Normally Closed (NC), there is a closed contact when the relay is energized.
17
The most accurate, least expensive, and easiest to repair kind of timers are solid state.
18
____ is recommended for applications with very high temperatures, heavy dust deposits, or corrosive atmospheres.
19
A____ solid state relay is used to control transformers and heavy inductive loads.
20
A ____ contact can control one circuit.
 
   



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