Prepare for your multimeter certification with these practice questions and answers. This guide covers electrical measurement techniques, meter usage, and safety procedures.
Q: After testing the fuses it was determined that the 0.5 amp fuse was bad. Student A indicates they do NOT have an exact replacement fuse, but a cheaper replacement fuse of similar size is acceptable to use. Student B states the correct replacement fuse is specially designed to protect the user in case of an unexpected high amperage draw. Who is correct?
Answer: Student B
Q: A student uses a multimeter to measure a resistance of a wire and gets a reading of 7.4 k? What would this value be in ohms ?
Answer: 7400 ohms
Q: The function buttons on the meter may be used to ______
Answer: Both A and B
Q: Using the illustration, with the rotary dial set to test micro-amps which two test lead terminal locations should be used?
Answer: Terminals 2 and 3
Q: A student can compare known values to measured values when using the REL function of the multimeter
Answer: True
Q: Of the following four diagnostic products which is the best suited for making exact voltage measurements when pinpoint testing an electronic circuit.
Answer: High impedance digital multi-meter
Q: Safety is a concern when using the test instruments. Protect yourself by testing the meters for one of the following before conducting any tests.
Answer: Test leads for breaks for damage.
Q: Safety is a concern when using the test instruments. You can protect yourself by testing the meters for one of the following before conducting any tests.
Answer: Test for good meter fuses
Q: Student A states using the Amperage setting on the multi meter you can measure the current flow in a circuit. Student B states that the Frequency setting is used to test for Ohms. Who is correct?
Answer: Student A
Q: The bar graph on the display enables the user to see __________ more easily.
Answer: rapidly changing signals
Q: To capture a maximum value automatically during testing, which function button would you press?
Answer: REC
Q: Using the illustration, with the rotary dial set to measure capacitance which two test leads terminal location should be used?
Answer: Terminals 3 and 4
Q: When using the meter in the Frequency setting you are measuring what?
Answer: The number of times per second a signal happens
Q: Which of the following rotary dial setting would be best for measuring the number of cycles per second.
Answer: Hz
Q: The meter is set-up and testing mV but an OL reading is displayed to correct this situation. Student A state the REL button should be pressed. Student B state the RANGE button should be pressed. Who is correct?
Answer: Student B
Q: Which function button sets the display to zero and factors out undesired reading?
Answer: REL
Q: Two Students are discussing the HOLD function button. Student A states the HOLD button will pause or freeze the screen to capture a reading. Student B states the pressing the HOLD button again will return to the live electrical reading. Who is correct?
Answer: Both Student A and Student B
Q: What does it mean when a meter has “high-impedance”
Answer: Can measure a high voltage
Q: Two Students are discussing connecting the meter to measure amperage. Student A states the meter leads should be connected in parallel with the circuit. Student B states he meter leads should be connected in series with the circuit. Who is correct?
Answer: Student B
Q: Using the illustration, what dial setting would be used to test for milli-amps?
Answer: D
Q: Using the illustration, with the rotary dial set to test frequency which two test lead terminal locations should be used?
Answer: Terminals 3 and 4
Q: Using the illustration, what dial setting would be used to test for continuity?
Answer: C
Q: Using the illustration: when testing the fuse connect the red test lead terminals into which meter terminals (this is referring to the lead terminal, NOT the probing end).
Answer: Terminal 4
Q: Using the illustration, with the rotary dial set to test diodes which two test lead terminal locations should be used?
Answer: Terminals 2 and 3
Q: Using the illustration provided, with the rotary dial set test measure amperage, which two test terminals locations should be used?
Answer: Terminals 1 and 3
Q: Using the illustration, what dial setting would be used to test a capacitor?
Answer: F
Q: Using the illustrations, what dial setting would be used to test for Volts AC?
Answer: A
Q: Using the illustration, what dial setting would be used to test diodes?
Answer: F
Q: Using the illustration, what dial setting would be used to test frequency?
Answer: E
Q: Using the illustrations, what dial setting would be used to test for Volts DC?
Answer: B
Q: Which of the following meters has the highest safety rating?
Answer: CAT III – 1000 V
Q: Two students are discussing quality multi meters test leads. Student A states that removing the protective tips will change the category rating of the test leads and make them unsafe to use in certain situations. Student B states that the test leads are double insulated and the inner insulation layer is white, so it is easy to spot any cuts or other damage against the red and black outer layer. Who is correct?
Answer: Student B
Q: If an AC voltage signals is acting erratic due to electrical noise/interference the reading can be smoothed out by using the LPF function.
Answer: True
Q: Two Students are discussing measuring temperature. Student A states that when installing the temperature adapter/probe into the meter, care has to be taken to ensure the positive(+) and negative(-) terminals are properly aligned. Student B states the temperature reading can be changed between Celsius and Fahrenheit by pressing the RANGE button. Who is correct?
Answer: Student A
Q: Resistance, Continuity, Diode, and capacitance (CAP) are powered tests, meaning the component must be part of a functional circuit before testing.
Answer: False
Q: Two students are discussing quality multimeters fuses. Student A states fuses used in higher category meters are sometimes filled with a stand type material that will change to glass when exposed to high temperatures (overload situations). Student B states ceramic fast blow fuses have a much higher “breaking capacity” or the fuse’s ability to interrupt current flow without being destroyed or arched over. Who is correct?
Answer: Both Student A and Student B
Q: What is the most common cause of a blown meter fuse?
Answer: Having the test leads in the wrong terminals.
Q: Two students are discussing the high impedance found in a multimeter. Student A states that high impedance increases the amperage measure capabilities of the multimeter. Student B states that high impedance minimizes the electrical impact on the circuit being tested for more accurate voltage results Who is correct?
Answer: Student B
Q: Two students are discussing category (CAT) rating found on multimeters. Student A states that the category rating defines the meter’s ability to handle intermittent voltage spikes (transients). Student B states a CAT I ratings the highest safety rating possible for a multimeter. Who is correct?
Answer: Student A
Q: Two students are discussing the category (CAT) ratings found on multi meters and test leads. Student A states that the category rating of the test leads should be equal to or higher than the multimeter itself. Student B states that quality test leads have a rating of CAT 111,000V. Who is correct?
Answer: Student A