Tech A says that when reading DC voltage on a meter, a "+" before the number means that there is a higher voltage at the read lead than the black lead. Tech B says that a "-" before the number means that there is a lower voltage at the read lead than the black lead. Who is correct?

Tech A says that to read amperage the meter needs to be hooked up in series in a circuit. Tech B says that to read amperage at a load, place one lead of the ammeter on the input side of the load and the other lead on the output? Who is correct?

Tech A says that when checking amperage on a battery, hook the read lead to positive and the black lead to ground. Tech B says that a resistance reading on a light bulb requires the DVOM to be hooked to each side of the bulb and the switch turned on. Who is correct?

Tech A says that when checking a voltage drop across an open switch, a measurement of 12 volts means the circuit is open. Tech B says that when checking voltage drop across an open switch, a measurement of 12 volts means the switch contacts are closed. Who is correct?

A customer complains of slow engine cranking, Tech A says that the starter is faulty and should be replaced. Tech B says that performing a voltage drop test on at he high current side of the starter circuit is a valid test in this situation. Who is correct?

Tech A says that when resistance increases, current flow decreases. Tech B says that when voltage decreases current increases. Who is correct?

Tech A says that an open circuit will typically cause higher current flow, which will blow the fuse. Tech B says that a short to ground can typically be found by checking voltage at different points in the circuit. Who is correct?

Tech A says that when a fuse has popped, it just needs to be replaced, since it performed its job. Tech B says that when a fuse has blown, the circuit needs to be diagnosed because the fuse was probably not the problem. Who is correct?

Two technicians are discussing scope testing. Tech A says that the vertical axis of the screen shows voltage Tech B says that the horizontal axis shows time. Who is correct?