1 Flashcards

1
Q

What does a cell symbol represent in a circuit diagram?

A

A cell symbol represents a source of electrical energy.

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2
Q

True or False: A battery symbol consists of two or more cell symbols connected together.

A

True

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3
Q

What is the symbol for a resistor?

A

The symbol for a resistor is a zigzag line.

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4
Q

Fill in the blank: The symbol for a switch is represented by a _____ line that is open or closed.

A

broken

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5
Q

What does the symbol for a lamp indicate in a circuit?

A

The symbol for a lamp indicates a light-emitting device.

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6
Q

Which symbol represents a fuse in a circuit diagram?

A

A fuse is represented by a rectangle with a line through it.

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7
Q

Multiple choice: What does the symbol with a triangle and a line at the base represent? A) Capacitor B) Diode C) Inductor

A

B) Diode

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8
Q

What does an open switch symbol indicate?

A

An open switch symbol indicates that the circuit is incomplete.

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9
Q

True or False: The symbol for a variable resistor is the same as a regular resistor.

A

False

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10
Q

What is the function of a capacitor in a circuit?

A

A capacitor stores electrical energy temporarily.

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11
Q

Which symbol represents an ammeter?

A

An ammeter is represented by a circle with an ‘A’ inside.

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12
Q

Fill in the blank: The symbol for a voltmeter is represented by a circle with a _____ inside.

A

V

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13
Q

What does the ground symbol indicate in a circuit diagram?

A

The ground symbol indicates a reference point for voltage in the circuit.

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14
Q

Multiple choice: Which symbol represents a transformer? A) Rectangle B) Circle C) Two parallel lines

A

C) Two parallel lines

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15
Q

What does the symbol for a diode do?

A

The diode symbol allows current to flow in one direction only.

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16
Q

True or False: The symbol for an LED is different from a regular diode.

A

True

17
Q

What does the symbol for a relay represent?

A

The relay symbol represents an electrically operated switch.

18
Q

Which symbol indicates a connection point in a circuit diagram?

A

A dot where lines intersect indicates a connection point.

19
Q

Fill in the blank: The symbol for an inductor is represented by a series of _____ loops.

A

curved

20
Q

What is the purpose of a potentiometer in a circuit?

A

A potentiometer is used to adjust voltage levels.

21
Q

Multiple choice: What does the symbol with a circle and a plus sign inside represent? A) Ground B) Battery C) Capacitor

A

B) Battery

22
Q

What does the symbol for a speaker indicate?

A

The speaker symbol indicates a device that converts electrical energy into sound.

23
Q

True or False: A short circuit is represented by a closed switch symbol.

A

True

24
Q

What is indicated by the symbol for a fuse in a circuit?

A

The fuse symbol indicates a safety device that prevents excess current.

25
Q

What does the wavy line symbol represent?

A

The wavy line symbol represents an AC power source.

26
Q

Fill in the blank: The symbol for a thermistor changes its resistance with _____ changes.

A

temperature

27
Q

What does the symbol for an optical sensor indicate?

A

The optical sensor symbol indicates a device that detects light.