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Hassan
1.The XOR gates are ideal for testing parity because even-parity words produce a _____ output and odd-parity words produce a _____ output
A. low, high
B. high, low
C. odd, even
D. low, high
2.Which of the following is not true?
A. 0X0 = 0
B. 0 x 1 = 1
C. 1 x 0 = 0
D. 0X0 = 0
3._____ has become the most widely used bipolar family.
A. DTL
B. TTL
C. ECL
D. DTL
4.The functional capacity of SSI devices is
A. 1 to 11 gates
B. 12 to 99 gates
C. 100 to 10,000 gates
D. 1 to 11 gates
5.The master slave JK flip-flop is effectively a combination of
A. an SR flip-flop and a T flip-flop
B. an SR flip-flop and a D flip-flop
C. a T flip-flop and a D flip-flop
D. an SR flip-flop and a T flip-flop
6.The octal equivalent of decimal 324.987 is
A. 504.771
B. 640.781
C. 815.234
D. 504.771
7.One way to simplify the sum-of-products equation is to use boolean algebra. Another way is the _____ map.
A. De Morgan
B. Standard
C. Schottky
D. De Morgan
8.With a JK master-slave flip-flop the master is cocked when the clock is _____ and the slave is triggered when the clock is _____
A. set, reset
B. race, no change
C. high, low
D. set, reset
9.The 7400 series, also called standard TTL, contains a variety of SSI and _____ chips that allow us to build all kinds of digital circuits and systems.
A. LSI
B. MSI
C. MOS
D. LSI
10.Conversion of decimal number 9910 to hexadecimal number is
A. 6316
B. 816
C. 6116
D. 6316
11.Conversion of binary number 11011001111110002 to hexadecimal number is
A. D8F816
B. A8B916
C. 78916
D. D8F816
12.When the LOAD input of a buffer register is active, the input word is stored on the next positive _____ edge.
A. clock
B. pulse
C. register
D. clock
13.Addition of 1101011012, 1110111012, 0001111112, 1001011012, 1111101112 is
A. 10110101110102
B. 11110110000102
C. 10001010001012
D. 10110101110102
14.A demultiplexer is also known as
A. data selector
B. data distributor
C. multiplexer
D. data selector
15.Conversion of a octal number 638 to its decimal number is
A. 5110
B. 6110
C. 5710
D. 5110
16.Binary means _____
A. Three
B. Four
C. Ten
D. Three
17.For an input pulse train of clock period T, the delay produced by an n stage shift register is
A. (n-l)T
B. nT
C. (n+l)T
D. (n-l)T
18.Conversion of a hexadecimal number 6316 to binary number is
A. 11001112
B. 11000112
C. 1110112
D. 11001112
19.Which function positive logic is equivalent to OR function in negative logic?
A. NOT
B. AND
C. OR
D. NOT
20.Conversion of binary number 1011012 to its decimal number is
A. 4510
B. 4310
C. 4010
D. 4510
21.FETs are used in linear ICs to:
A. increase input resistance
B. provide large resistances
C. increase device complexity
D. increase input resistance
22.A flip-flop can store
A. one bit of data
B. two bits of data
C. three bits of data
D. one bit of data
23.Which of the following is the first integrated logic family?
A. RTL
B. DTL
C. TTL
D. RTL
24.A flip-flop is a _____ element that stores a binary digit as a low or high voltage.
A. chip
B. bus
C. I/O
D. chip
25.An AND gate has 7 inputs. How many input word are in its truth table?
A. 64
B. 32
C. 16
D. 64
26.When an inverter is placed between both inputs of an SR flip-flop, the resulting flip-flop is
A. JK flip-flop
B. D flip-flop
C. T flip-flop
D. JK flip-flop
27.Arithmetic operation are coded in
A. Decision symbols
B. Input/Outpur(I/0)
C. Processing symbols
D. Decision symbols
28.Which of the following electronic component is not found in ordinary ICs?
A. diodes
B. resistors
C. transistors
D. diodes
29.A shift register can be used for
A. parallel to serial conversion
B. serial to parallel conversion
C. digital delay line
D. parallel to serial conversion
30.Which of the following logic families use bipolar transistors?
A. TTL
B. GaAS
C. NMOS
D. TTL
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