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QUIZ 2,3 CONSTRUCTION 150
True/False
T F 1. Batteries and cells are mechanical devices that provide dc voltage.
T F 2. Secondary cells are rechargeable.
T F 3. Cell capacity refers to the amount of energy the cell can provide under specified
conditions.
T F 4. The specific gravity of a substance is the ratio of its weight to the weight of water.
T F 5. Nickel-cadmium cells are a very popular secondary cell.
T F 6. Ionization of the neon in a lamp occurs between two metal electrodes inside the bulb.
T F 7. A resistor’s major purposes are to control voltage and divide current.
T F 8. Devices known as zero-ohm resistors are often used in place of a short piece of wire on
a circuit board.
T F 9. The power rating of a resistor indicates the amount of resistance the device has without
being destroyed
.
T F 10. Thermistors exhibit large changes in resistance for small changes in temperature.
T F 11. If not properly handled, lead-acid cells and batteries can be dangerous
Multiple Choice
12. A variable resistor that has three terminals is called a
A. varistor
B. rheostat
C. potentiometer
D. transresistor
13. What is the term used to specify a percentage of the nominal resistance of a resistor?
A. power rating
B. tolerance
C. safety factor
D. derating factor
14. Circuit components such as resistors, capacitors, and solid-state devices that are made
without leads for connecting them to tie points are
A. passive components
B. surface-mount devices
C. active devices
D. IC devices
TB 4 | 1
15. Switches that are constructed to return to the same position when released by the
operator are called
A. DPST
B. make-before-break
C. rotary
D. momentary-contact
16. The term for a multiple conductor device is
A. shield
B. cable
C. gage
D. circular mil
17. A special-purpose, shielded cable used to connect antennas to receivers or
transmitters is the
A. coaxial
B. ribbon
C. busbar
D. Litz
18. Which of the following should be used whenever short-duration surge currents are
expected?
A. fast-blow fuse
B. medium-blow fuse
C. slow-blow fuse
D. varistor
19. Which of these cells is rechargeable?
A. silver-oxide
B. carbon-zinc
C. zinc chloride
D. nickel-cadmium
20. A 100-W resistor would most likely be a
A. carbon-composition resistor
B. conductive-plastic resistor
C. deposited-film resistor
D. wire-wound resistor
TB 4 | 2