Which of the following output configurations are available in a TTL gate?
A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3
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Logic function A B D + A B D
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Which of the following statement is true for programmable logic array (PLA)?
A. Fixed AND array and fused programmable OR array
B. Fused programmable AND array and fixed OR array
C. Fused programmable AND array and fused programmable OR array
D. None of these
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Time taken to enter a byte in parallel shift register using clock of 5 MHz is . . . . . . . .
A. 0.2 micro seconds
B. 5 micro seconds
C. 40 micro seconds
D. 1.8 micro seconds
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The A/D converter used in a digital voltmeter could be
A. 1, 2, 3
B. 2, 1, 3
C. 3, 2, 1
D. 3, 1, 2
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The output is "1" for like inputs and "0" for unlike inputs. This statement is representative of which logic gate?
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Which logic gate is a basic comparator?
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Reduce the Boolean equation AB + ABC + A B + A B C
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Match
List-I with
List-II and select, the correct answer using the options given below the lists:
List-I (Digital Circuit)List-II (Circuit Type)
a. BCD to 7-segment
1. Sequential circuit Decoder
b. 4-to-1 Multiplexer
2. Combinational circuit
c. 4 bit Shift Register
3. Neither sequential nor combinational
d. BCD Counter
A. a-2, b-1, c-2, d-1
B. a-3, b-2, c-1, d-3
C. a-2, b-2, c-1, d-1
D. a-3, b-1, c-2, d-3
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The initial state of MOD-12 down counter is 0110. After 28 clock pulses, the state of the counter will be-
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Which of the following Boolean expression is incorrect?
A. A + A B = A + B
B. A + AB = B
C. (A + B)(A + C) = A + BC
D. (A + B')(A + B) = A
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A 12-bit A/D converter has a full-scale analog input of 5 V. Its resolution is:
A. 1.22 mV
B. 2.44 mV
C. 3.66 mV
D. 4.88 mV
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2 x 34 x = 1 6 x
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In a binary source, 0's occur three times as often as 1's. What is the information contained in the 1s?
A. 0.415 bit
B. 0.333 bit
C. 3 bit
D. 2 bit
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An 8 bit DAC has a full scale output of 2 mA and full scale error of ±0.5%. If input is 10000000 the range of outputs is . . . . . . . .
A. 994 to 1014 µA
B. 990 to 1020 µA
C. 800 to 1200 µA
D. None of the above
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The following is equivalent to
A. OR gate
B. NAND gate
C. EX-OR gate
D. None of these
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In case a problem has no don't care states which of the following is a correct statement?
A. The information in a truth table is not sufficient to complete a Karnaugh map
B. The information in a Karnaugh map is not sufficient to complete a truth table
C. The information in a truth table is sufficient to complete a Karnaugh map
D. Truth table has no relationship with its Karnaugh map
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What are the two types of basic adder circuits?
A. Half adder and full adder
B. Half adder and parallel adder
C. Asynchronous adder and synchronous adder
D. One's complement adder and two's complement adder
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A digital system is required to amplify a binary encoded audio signal. The user should be able to control the gain of the amplifier from a minimum to a maximum in 100 increments. The minimum number of bits required to encode, in straight binary, is
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In certain number system with base or radix x, if (123)x + (21)x = (210)x then base or radix x of number system is:
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