ECE QUIZ :2

Online Examination for ECE Quiz Question And Answer

Online Test

1. Convert the decimal number 151.75 to binary

10000111.11
11010011.01
00111100.00
10010111.11
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2. Which of the examples below expresses the commutative law of multiplication?

A + B = B + A
A • B = B + A
A • (B • C) = (A • B) • C
A • B = B • A
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3. The content of a simple programmable logic device (PLD) consists of
 
fuse-link arrays
thousands of basic logic gates
advanced sequential logic functions
thousands of basic logic gates and advanced sequential logic functions
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4. Most demultiplexers facilitate which of the following?
 
decimal to hexadecimal
single input, multiple outputs
ac to dc
odd parity to even parity
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5. To operate correctly, starting a ring counter requires
 
clearing all the flip-flops
presetting one flip-flop and clearing all the others
clearing one flip-flop and presetting all the others
presetting all the flip-flops
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6. How many storage locations are available when a memory device has twelve address lines?
 
144
512
2048
4096
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7. What is the difference between mnemonic codes and machine codes?
 
There is no difference
Machine codes are in binary, mnemonic codes are in shorthand English.
Machine codes are in shorthand English, mnemonic codes are in binary
Machine codes are in shorthand English, mnemonic codes are a high-level language
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8. If the resistance total in a series circuit doubles, current will
 
be the same
be doubled
reduce source voltage
be halved
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9. The current flowing through an unloaded voltage divider is called the
 
resistor current
load current
bleeder current
voltage current
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10. The electrical energy consumed by a coil is stored in the form of

an electrical field
a force field
an electrostatic field
a magnetic field
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Score =
Correct answers: