ELC 127
Quiz 1
Duncan Price
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) Any number with an exponent of zero is equal to
A) one.
B) zero.
C) itself.
2) What is the decimal value of 23 ?
A) 2
B) 6
C) 8
3) The decimal equivalent of binary 10010 is ________.
A) 910
B) 1810
C) 2010
4) The decimal equivalent of binary 110101 is ________.
A) 4910
B) 5310
C) 5910
5) The decimal equivalent of binary 10111110 is ________.
A) 20010
B) 19010
C) 18610
6) Convert decimal 213 to binary.
A) 11010101
B) 11001101
C) 11100011
7) How many different symbols are used in the octal number system?
A) ten
B) seven
C) two
8) Convert binary 1001 to octal.
A) 1018
B) 118
C) 98
9) The hexadecimal equivalent of a decimal 13 is ________.
A) "C"
B) "D"
C) "E"
10) The hexadecimal equivalent of a binary 10110010 is ________.
A) C216
B) A216
C) E216
11) The hexadecimal equivalent of a binary 0010111101111110 is ________.
A) 77F216
B) 4EEE16
C) 2F7716
12) The binary equivalent of hexadecimal DB is ________.
A) 10111011
B) 10110011
C) 11011100
13) The binary equivalent of hexadecimal 44 is ________.
A) 01000100
B) 10001100
C) 10011010
14) The decimal equivalent of hexadecimal C9 is ________.
A) 20110
B) 21510
C) 22010
1
D) ten.
D) 4
D) 610
D) 4710
D) 19810
D) 01111001
D) eight
D) 108
D) "F"
D) B216
D) 2F7E16
D) 11011011
D) 01011000
D) 21010
1)
A
2)
C
3)
B
4)
B
5)
B
6)
A
7)
D
8)
9)
B
B
10)
D
11)
D
12)
D
13)
A
14)
A
15) The decimal equivalent of hexadecimal 1E is ________.
A) 3510
B) 2110
C) 3010
16) The hexadecimal equivalent of decimal 32 is ________.
A) 2516
B) 2016
C) 1216
17) The hexadecimal equivalent of decimal 88 is ________.
A) 6816
B) 5516
C) 5816
18) The BCD equivalent of decimal 109 is ________.
A) 1110 1110 1100BCD
C) 0001 0000 1101BCD
D) 2910
D) 3116
D) 5116
B) 1110 1011BCD
D) 0001 0000 1001BCD
19) The decimal equivalent of the BCD value 0010 0011 is ________.
A) 4310
B) 2310
C) 2010
D) 2710
20) LOW (or binary 0) in a digital system typically corresponds to ________.
A) -10 V
B) 0 V
C) -5 V
D) +5 V
21) A change from HIGH to LOW voltage in a digital clock signal is known as
A) period.
B) frequency.
C) rising edge.
D) falling edge.
15)
C
16)
B
17)
C
18)
D
19)
B
20)
B
21)
D
22) What is the frequency of a clock waveform whose period is 100 microseconds?
A) 1 kHz
B) 10 kHz
C) 40 kHz
D) 50 kHz
22)
B
23) What is the frequency of a clock waveform whose period is 750 microseconds?
A) 1.33 kHz
B) 10.25 kHz
C) .133 MHz
D) 2.33 kHz
23)
A
24) What is the period of a clock waveform whose frequency is 4 MHz?
A) 250 ms
B) 40 µs
C) .25 µs
24)
C
25)
B
25) What is the period of a clock waveform whose frequency is 150 kHz?
A) 3.33 µs
B) 6.66 µs
C) 66 ms
2
D) .25 ms
D) 160 µs