Quiz: using a multimeter

Question 1To measure the voltage across a resistor, the meter is connected:

1. in series with it
2. across it (in parallel)
3. with the power off
4. to its A socket

Question 2To measure current, the meter is connected:

1. across the battery
2. in series, in the loop, red in the A socket
3. across the load
4. anywhere on Ω

Question 3Why must you never put a meter set to current across a battery?

1. It reads negative
2. It is nearly a short circuit: a huge current flows and the fuse blows
3. It shows OL
4. It only works on AC

Question 4Why measure resistance with the power off?

1. To save the meter's battery
2. The meter measures R with its own small current; other voltages spoil the reading
3. Resistors change value when powered
4. It is the law

Question 5A 4.7 kΩ resistor in a circuit reads 3.2 kΩ on the meter. The most likely reason:

1. The resistor is faulty
2. Other parts in the circuit are in parallel with it
3. The meter is on AC
4. The leads are reversed

Question 6You measure 1.5 V across a 330 Ω resistor. The current through it is:

Question 7Continuity mode beeps on a fuse. The fuse is:

1. blown
2. good
3. the wrong value
4. shorted to ground