Page 82 - Teach Yourself Electricity and Electronics
P. 82
62 Measuring devices
B. Is placed between the negative pole of the supply and the circuit working
from the supply.
C. Is placed between the positive pole of the supply and the circuit working
from the supply.
D. Is placed in parallel with the circuit that works from the supply.
10. Which of the following will not cause a major error in an ohmmeter reading?
A. A small voltage between points under test.
B. A slight change in switchable internal resistance.
C. A small change in the resistance to be measured.
D. A slight error in range switch selection.
11. The ohmmeter in Fig. 3-17 shows a reading of about:
A. 33,000 Ω.
B. 3.3 KΩ.
C. 330 Ω.
D. 33 Ω.
3-17 Illustration for quiz
question 11.
12. The main advantage of a FETVM over a conventional voltmeter is the fact that
the FETVM:
A. Can measure lower voltages.
B. Draws less current from the circuit under test.
C. Can withstand higher voltages safely.
D. Is sensitive to ac as well as to dc.
13. Which of the following is not a function of a fuse?
A. To be sure there is enough current available for an appliance to work right.
