Electronic Test 1 Volume 1

1. What term refers to the energy stored in an
electromagnetic or electrostatic field?.
A. Joule – Coulomb
B. Ampere – Joule
C.Kinetic energy
D.Potential energy *
2. Parallel cells have the same voltages as one
cell but have
A. less current capacity
B. unstable resistance
C. different current capacity *
D. fluctuating power output.
3. The relative permeability of paramagnetic
Substance is
A. a little greater than 1 *
B. equal to 1
C. much greater than 1
D. much less than 1
4. Known as the reciprocal of capacitance.
A. Elastance *
B. Conductance
C. Permeability
D. Permittivity
5. A phenomenon whereby substance attracts
pieces of iron.
A. Electromagnetism
B. Naturalism
C. Magnetism *
D. Coulomb’s Law
6. Materials with permeabilities slightly less than
that of free space are referred to as
A. non – magnetic
B. paramagnetic
C. ferromagnetic
D. diamagnetic *
7. What do you call the process of converting an
AC input to a DC output?
A. Alteration
B. Variation
C. Rectification *
D. Radiation

8. What transistor in which n-type and p-type
materials are used?
A. FET
B. BJT *
C. UJT
D. TTL
9. _______ is the concept whereby a small
voltage is generated by a conductor with
current in an external magnetic field.
A. Flywheel effect
B. Magnetic effect
C. Hall effect *
D. Skin effect
10. What is the output voltage of a carbon-zinc
cell?
A. 2.5 V
B. 3.5 V
C. 1.5 V *
D. 0.5 V
11. With a single decimal digit, the highest count
Possible is
A. 7
B. 8
C. 9 *
D. 10
12. Electric power refers to
A. joule
B. volt-ampere *
C. volt-coulomb
D. watt-second
13. Determine how long a battery will last whose
rating is 100 AhL; 24 volts and will run 300
watts electroni equipment and 50 watts light.
A. 26.65 hours
B. 6.85 hours *
C. 50.05 hours
D. 12.00 hours
14. How does an ohmmeter behave if its positive
lead is connected to cathode of a diode while
negative to anode?
A. Has decreasing resistance
B. Has infinite high resistance *
C. Has unstable resistance
D. Has very low resistance
15. ______ are individual points graphic
display.
A. Resolution
B. Columns
C. Rows
D. Pixels *
16. Which of the following equipment is used to
determine location in terms of coordinate, this
is now widely used in modern communications?
A. Bearing meter
B. Hydrometer
C. Altimeter
D. Global Positioning System (GPS) *
17. Identify from the following statements that
does not refer to the use of signal generator
when testing a receiver out of generating
either modulated or un modulated signal.
A. Testing of receiver performance
B. receiver alignment
C. receiver servicing
D. Display of voltage or current graphs *
18. A conductor behaves as ______ at absolute
zero temperature.
A. a conductor
B. a variable resistor
C. a super – conductor *
D. an insulator
19. Which are the three terminals of a bipolar
transistor?
A. Base, collector and emitter *
B. Gate, source and sink
C. Input, output and group
D. Cathode, plate and grid
20. One disadvantage of a dynamic RAM is a
result of the need for
A. high voltage
B. blowing fuse
C. refreshing
D. complementing *
21. What is the output voltage of a silver
cadmium cell?
A. 1.5 V
B. 1.1 V *
C. 0.8 V
D. 3.0 V
22. Which of the following dry cells has the
largest height?
A. D *
B. C
C. AAA
D. AA

23. Ohm’s law is applicable to ______circuit.
A. trivalent
B. unilateral
C. linear *
D. exponential
24. Dynamic memory stores information
A. as long as power is applied and the
memory is refreshed *
B. when power is applied at regular intervals
C. as long as power is applied to the memory
D. even the power is not applied to the memory
25. What is the program used to enter a program
into the computer memory?
A. Subroutine
B. Complier
C. Assembler
D. Loader *