Q1: Answer the following questions: 1) The hexadecimal number Al' has the decimal value equivalent to (A) 80 (B) 161 (C) 100 (D) 101 2) The output of a logic gate is 0 when all its inputs are logic 1. The logic is either (A) a NAND or an EX-OR (B) an OR or an EX-NOR (C) an AND or an EX-OR (D) an NOR or an EX-NOR 3) The Gray code of the Binary number 1100111 is (A) 1011011 (B) 1010100 (C) 1001001 (D) 101101 4) When simplified with Boollean Algebra (a+b)(a+c) simplifies to (A) a (B) a+a(b+c) (C) a(1+bc) (D) a+bc 5) -31 is represented as a sign Binary number ( using Sign-magnitude form) equal to (A) 00011111 (B) 10101001 (C) 01110010 (D) 00101101 6) The Binary number 110111 is equivalent to decimal number (A) 25 (B) 55 (C) 26 (D) 34 7) With 4 bit, what the range of decimal values if the number is 2's complement signed number. (A) -32 to +31 (B) -2 to +1 (C) -8 to +7 (D) None of these Page 1 of 3

Electric Motor Control
10th Edition
ISBN:9781133702818
Author:Herman
Publisher:Herman
Chapter22: Sequence Control
Section: Chapter Questions
Problem 6SQ: Draw a symbol for a solid-state logic element AND.
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Q1: Answer the following questions:
1) The hexadecimal number 'Al' has the decimal value equivalent to
(A) 80
(B) 161
(С) 100
(D) 101
2) The output of a logic gate is 0 when all its inputs are logic 1. The logic is either
(A) a NAND or an EX-OR
(B) an OR or an EX-NOR
(C) an AND or an EX-OR
(D) an NOR or an EX-NOR
3) The Gray code of the Binary number 1100111 is
(A) 1011011
(B) 1010100
(C) 1001001
(D) 101101
4) When simplified with Boollean Algebra (a+b)(a+c) simplifies to
(A) a
(B) a+a(b+c)
(C) a(1+bc)
(D) a+bc
5) -31 is represented as a sign Binary number ( using Sign-magnitude form) equal to
(A) 00011111
(B) 10101001
(C) 01110010
(D) 00101101
6) The Binary number 110111 is equivalent to decimal number
(A) 25
(B) 55
(С) 26
(D) 34
7) With 4 bit, what the range of decimal values if the number is 2's complement
signed number.
(A) -32 to +31
(B) -2 to +1
(C) -8 to +7
(D) None of these
Page 1 of 3
8) The number 130 in octal is equivalent to decimal number
(A) 96
(B) 86
(C) 88
(D) None of these
9) The result of adding hexadecimal number B6 to 3A is
(A) DO
(B) FF
(С) ЕО
(D) None of these
10) In a 4-variable Karnaugh map, a 2-variable product term is produced by
(a) a 2-cell group of 1s
(b) an 8-cell group of 1s
(c) a 4-cell group of Is
(d) a 4-cell group of Os
Q2: Answer Two only:
A) Simplify the circuit in Figure (1) as much as possible, and verify that the simplified
Transcribed Image Text:Q1: Answer the following questions: 1) The hexadecimal number 'Al' has the decimal value equivalent to (A) 80 (B) 161 (С) 100 (D) 101 2) The output of a logic gate is 0 when all its inputs are logic 1. The logic is either (A) a NAND or an EX-OR (B) an OR or an EX-NOR (C) an AND or an EX-OR (D) an NOR or an EX-NOR 3) The Gray code of the Binary number 1100111 is (A) 1011011 (B) 1010100 (C) 1001001 (D) 101101 4) When simplified with Boollean Algebra (a+b)(a+c) simplifies to (A) a (B) a+a(b+c) (C) a(1+bc) (D) a+bc 5) -31 is represented as a sign Binary number ( using Sign-magnitude form) equal to (A) 00011111 (B) 10101001 (C) 01110010 (D) 00101101 6) The Binary number 110111 is equivalent to decimal number (A) 25 (B) 55 (С) 26 (D) 34 7) With 4 bit, what the range of decimal values if the number is 2's complement signed number. (A) -32 to +31 (B) -2 to +1 (C) -8 to +7 (D) None of these Page 1 of 3 8) The number 130 in octal is equivalent to decimal number (A) 96 (B) 86 (C) 88 (D) None of these 9) The result of adding hexadecimal number B6 to 3A is (A) DO (B) FF (С) ЕО (D) None of these 10) In a 4-variable Karnaugh map, a 2-variable product term is produced by (a) a 2-cell group of 1s (b) an 8-cell group of 1s (c) a 4-cell group of Is (d) a 4-cell group of Os Q2: Answer Two only: A) Simplify the circuit in Figure (1) as much as possible, and verify that the simplified
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