5
A. Place one hand in your pocket or
behind your back.
B.
Turn on the power.
C.
Connect the meter ground to the
equipment ground.
D. Place the positive meter lead on the
test point; select for positive or
negative polarity.
Figure 1A.Procedures
IN ANSWERING QUESTION 1-33, REFER
TO THE PROCEDURES IN FIGURE 1A.
1-33. When you measure voltages less than
300 volts, in what order should you
complete the task?
1. A B C D
2. B C D A
3. C A D B
4. D C B A
_________________________________
IN ANSWERING QUESTIONS 1-34
THROUGH 1-37, SELECT FROM THE
MEASUREMENT COLUMN BELOW THE
ANSWER THAT MATCHES THE
SITUATION BEING DESCRIBED.
MEASUREMENT
1.
Current
2.
Inductance
3.
Resistance
4.
Capacitance
_________________________________
1-34. This measurement is rarely taken in
preventive or corrective maintenance or
testing because unsoldering is usually
required. Ohm's law is normally applied
to determine this value.
1-35. This is a valuable aid in locating faults
during corrective maintenance, but
cannot be made with power applied.
Many technical manuals contain charts
that indicate the test points for this
measurement.
1-36. This measurement provides an indication
of dielectric strength and is used to
determine the power factor.
1-37. This measurement is seldom taken during
troubleshooting. It can be taken using a
bridge or another instrument that is
primarily designed to measure another
quantity; however, a conversion chart is
required.
1-38. The power factor is an indication of the
losses caused by which of the following
conditions?
1. Excessive voltage
2. Dielectric absorption
3. Current leakage
4. Both 2 and 3 above
1-39. The Wheatstone bridge can be used for
precision measurements of which of the
following quantities?
1. Voltage
2. Current
3. Impedance
4. Resistance