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1 | The analog volt-ohm-milliammeter (VOM) is the most common measuring instrument used by technicians. |
| A) | True |
| B) | False |
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2 | DMMs cannot measure capacitors, diodes, and transistors. |
| A) | True |
| B) | False |
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3 | An analog multimeter uses a moving pointer and a printed scale. |
| A) | True |
| B) | False |
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4 | A moving-coil meter movement is generally used in an analog multimeter. |
| A) | True |
| B) | False |
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5 | The moving-coil arrangement is often called a D'Arsonval movement, after its inventor. |
| A) | True |
| B) | False |
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6 | Looking at a meter from the side increase the possibility of getting what is known as a parallax error. |
| A) | True |
| B) | False |
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7 | When the insertion of a current meter decreases the circuit current above that which exists without the meter present, the effect is called current meter loading. |
| A) | True |
| B) | False |
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8 | Most general-purpose analog VOMs have an accuracy of ±2%. |
| A) | True |
| B) | False |
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9 | A voltmeter has low resistance and is generally connected in series. |
| A) | True |
| B) | False |
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10 | When the measured voltage decreases because of the additional load current for the meter, the meter is said to be down. |
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11 | Voltmeter loading can be appreciable in circuits. |
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12 | A digital multimeter usually has an input resistance of about Ω. |
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13 | The ohm scale increases from right to left and is called a scale. |
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14 | A feature of most DMMs that selects the proper range for the meter and indicates the range as a readout is called . |
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15 | A circuit that converts analog voltage values to an equivalent binary form is called the converter circuit. |
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16 | Looking at a(n) meter from the side results in an optical error called parallax. |
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17 | loading can be appreciable in high-resistant circuits. |
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18 | The loading effect is minimized by using |
| A) | a voltmeter with very high resistance |
| B) | a voltmeter with a very low resistance |
| C) | a voltmeter with zero resistance |
| D) | an ammeter with a very high resistance |
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19 | When the ohmmeter leads are open, not touching each other, the ohmmeter |
| A) | is broken |
| B) | is being zeroed |
| C) | indicates no resistance |
| D) | indicates infinitely high resistance |
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20 | When the zero adjust on an ohmmeter cannot deflect the pointer all the way to zero, it generally means |
| A) | the potentiometer is faulty |
| B) | the ohmmeter is shot |
| C) | the fuse is blown |
| D) | the battery voltage is too low |
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21 | An accessory probe that can be used with a multimeter to measure dc voltages up to 30 kV is called a(n) |
| A) | scope probe |
| B) | high-voltage probe |
| C) | amplifier probe |
| D) | grounding wand |
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22 | When testing a semiconductor diode with a DMM, normal values are |
| A) | 0.7 V for silicon and 0.3 V for germanium |
| B) | 0.3 V for silicon and 0.7 V for germanium |
| C) | 1.2 V for silicon and 0.6 V for germanium |
| D) | 1.7 V for silicon and 1.3 V for germanium |
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23 | What is the term for a DMM that specifies how many places can be used to display the digits 0 to 9, regardless of the decimal point? |
| A) | protocol |
| B) | accuracy |
| C) | revolution |
| D) | resolution |
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24 | When measuring a fuse with an ohmmeter, a good fuse measures |
| A) | 0 Ω |
| B) | ∞ Ω |
| C) | 75 Ω |
| D) | 300 Ω |
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25 | When testing a fuse with a voltmeter, an open fuse will measure |
| A) | zero volts |
| B) | 12 V |
| C) | 120 Vac |
| D) | the value of the voltage source |