cameroon gce 2023 intermediate level electrical and electronic circuits 1
cameroon gce 2023 intermediate level electrical and electronic circuits 1
33. A battery is rated at 200Ah. how many hours can it
continuously supply a current of 2A?
A 400H
B 202H
:
i \
C 19811
D toon
34. Four batteries of 12 volts each when connected in
parallel will supply;
A 12V
B 24V
C 48V
n 36V
42. A silicon controlled rectifier has
A One pn junction
B Two pn junctions
C Three pn junctions
D Four pn junctions
1 43. A thyristor ABC Silicon Transistor Diac is also controlled called rectifier
D Triac
• A
35. The period of a sine wave of frequency 60Hz is
A T=0.016sec
B T=60secs
C T=0.06secs
D T=0.02secs
V y •
r
,
• v- .
44. The boolean expression BC+BD + BC + BD + CD
simplifies to
A BC+BD
B CD+BD
C BC+BD + A
D BC+CD
36. The power factor of an ac circuit with a purely
capacitive load is;
A Leading
B Lagging
C Unity
D Zero
45. The 2-inpt logic gate which provides output as 0
when both inputs are same (either 0 or 1) is
A XNOR
B XOR
C NOR
D NAND
37. Which of the following statement is not true for a
poor power factor?
A It reduces load handling capability of
electrical system
B Improves on the efficiency of the system
C It results in more power losses in the
system
D It overloads transformers and distribution
lines.
46. Capacitors for power factor improvement are rated
in
A KVA
B KVA
C KVAR
D KW
38. The complement of the expression ab + cd is
A (a+b)(c + d )
B
