D - Test Equipment

Question 1

A resistance reading of infinity or out of limits (OL) indicates a:

Answer 1

Resistance higher than the meter is capable of reading.

Question 2

A resistance reading of 2.4 M ohms could be expressed as:

Answer 2

2 400 000 ohms.

Question 3

The term impedance, as related to electrical test equipment, indicates:

Answer 3

The amount the test equipment will load the circuit.

Question 4

The first step in operating a digital multimeter should be to:

Answer 4

Read manual.

Question 5

A low resistance conductor that is connected in parallel with the ammeter’s digital display is called a:

Answer 5

Shunt.

Question 6

When using the Ohm meter function of a digital multimeter, holding the two test leads together, a reading of (?) is expected.

Answer 6

0 ohms.

Question 7

When using a digital multimeter to measure amperage, what protects the meter from having too much current run through it?

Answer 7

Internal fuse.

Question 8

A high impedance digital meter should be used when measuring electronic circuits to reduce the:

Answer 8

Possibility of circuit damage and inaccuracy of meter readings due to meter loading.

Question 9

True or False: Measuring the source voltage with no loads connected is known as measuring open circuit voltage.

Answer 9

True.

Question 10

A(n) (?) digital multimeter automatically sets itself to the most accurate range within each function.

Answer 10

An auto ranging digital multimeter automatically sets itself to the most accurate range within each function.

Question 11

When using a digital multimeter to check (?), the meter is connected in parallel to the source of voltage.

Answer 11

When using a digital multimeter to check voltage, the meter is connected in parallel to the source of voltage.

Question 12

When using a digital multimeter to check (?), the meter must be connected in series to allow all the circuit’s current to pass through the meter in order to obtain an accurate reading.

Answer 12

When using a digital multimeter to check amperage, the meter must be connected in series to allow all the circuit’s current to pass through the meter in order to obtain an accurate reading.

Question 13

Meters equipped with a (?) have an internal battery to power the meter’s electronics.

Answer 13

Meters equipped with a digital display have an internal battery to power the meter’s electronics.

Question 14

If the (?) is reversed on a digital multimeter, the digital display indicates a ( - ) negative sign.

Answer 14

If the polarity is reversed on a digital multimeter, the digital display indicates a ( - ) negative sign.

Question 15

You should always use a (?) digital meter when measuring sensitive electronic circuits.

Answer 15

You should always use a high impedance digital meter when measuring sensitive electronic circuits.

Question 16

The use of (?) is not recommended on any circuits, especially those containing electronic components.

Answer 16

The use of test lights is not recommended on any circuits, especially those containing electronic components.

Question 17

When using a digital multimeter to check (?) never connect the meter to an energized circuit.

Answer 17

When using a digital multimeter to check resistance, never connect the meter to an energized circuit.

Question 18

To read positive amperage readings, the arrow on the ammeter’s (?) is always pointed towards the battery’s negative terminal.

Answer 18

To read positive amperage readings, the arrow on the ammeter’s inductive clamp is always pointed towards the battery’s negative terminal.