5.E: Self Test 1
- Page ID
- 3299
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- Match the device on the left with its purpose on the right.
- Circuit breaker 1. Protects circuits
- Relay 2. Electric switch
- Solenoid 3. Variable control
- Rheostat 4. Movable core
- What best describes tapped or stepped resistors?
- They have two or more fixed values.
- They have only one unchangeable rating.
- They have a variable range of resistance.
- They are used to control charging systems.
- How is a fuse different from a circuit breaker?
- A fuse acts like a diode.
- A circuit breaker doesn’t need a ground.
- A fuse can be reset and a circuit breaker cannot.
- A circuit breaker can be reset and a fuse cannot.
- 6 gauge wire is smaller than 18 gauge.
- True
- False
- What are conductors normally made from?
- Steel
- Copper
- Soft iron
- Aluminum
- Receptacles are one-half of a two-piece multi-contact connector.
- True
- False
- What are circuit breakers, fuses, and thermal limiters all examples of?
- Relays
- Switches
- Receptacles
- Protection devices
- How many gauges of difference must there be between a fusible link and a conductor?
- 2
- 4
- 6
- 8
- Relays require a power circuit and a control circuit.
- True
- False
- What are transformers used for?
- To act like a relay
- To increase amperage
- To increase or decrease voltage
- To change the current from DC to AC
- Who is responsible for testing all electrical components?
- ITA
- NSA
- CSA
- DNA
- Closed means the circuit is complete and conducting.
- True
- False
- What voltage other than 120 V does a residential system use?
- 180 V
- 200 V
- 240 V
- 280 V