True/False
Indicate whether the
statement is true or false.
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1.
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Capacitors resist the flow of current through a circuit.
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2.
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The human body, through static electricity, cannot be charged more than 15
volts.
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3.
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Static electricity is not usually dangerous to human beings but it is definitely
dangerous to electronics.
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4.
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You should be careful not to touch sources of high voltage, even when they are
not powered.
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5.
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The secret to soldering successfully is to melt the solder quickly.
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Multiple Choice
Identify the
choice that best completes the statement or answers the question.
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6.
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______ is the flow of electricity.
a. | Current | c. | Static electricity | b. | Lightning | d. | Voltage |
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7.
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At currents as low as _______, death is possible.
a. | 15 mA | c. | 25 mA | b. | 5 mA | d. | 50 mA |
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8.
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_____ is electrical potential.
a. | Current | c. | Static electricity | b. | Lightning | d. | Voltage |
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9.
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The most common component in electronics is/are _____.
a. | a solder joint | c. | capacitors | b. | resistors | d. | alloys |
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10.
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______ is a metal alloy that melts at a significantly lower temperature than the
metals it connects.
a. | Solder | c. | Fiberglass | b. | Epoxy | d. | Axial lead |
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11.
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______ usually look like a can with legs (leads) coming from the bottom.
a. | Most resistors | c. | Tantalum capacitors | b. | Ceramic capacitors | d. | Electrolytic capacitors
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12.
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Lightning is the discharge of _____ between the atmosphere and the
ground.
a. | current | c. | static electricity | b. | voltage | d. | electrocution |
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13.
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The voltage difference between the atmosphere and the ground can be in the _____
of volts.
a. | hundred thousands | c. | millions | b. | trillions | d. | billions |
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14.
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The more _____ applied to a person’s body, the more current will flow, and
the more dangerous the situation becomes.
a. | voltage | c. | electric current | b. | electricity | d. | electric
discharge |
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15.
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Resistors are _____; in other words, they can go into a circuit in either
direction.
a. | not polarized | c. | polarized | b. | axial-leaded | d. | tin-tipped |
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16.
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_____ is done to attach components like resistors and capacitors to circuit
boards.
a. | Tin the tip | c. | Soldering | b. | Axial leading | d. | Welding |
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17.
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_____ components are those components that must be inserted into a circuit in
the proper direction to function.
a. | Polarized | c. | Axial-leaded | b. | Nonpolarized | d. | Tin-lead |
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18.
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_____ results when a stored charge rapidly discharges.
a. | Voltage | c. | Current | b. | Static electricity | d. | Lightning |
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19.
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Wire solder, usually used when building boards by hand, contains solder and
_____.
a. | tin | c. | flux | b. | rosin | d. | fiberglass |
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20.
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_____ are typically found as axial-lead packages.
a. | Ceramic capacitors | c. | Tantalum capacitors | b. | Electrolytic capacitors | d. | Resistors |
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