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10 Question-answer on logic gate 1.        in the binary number system 100 + 1011 is equal to (a)     1000 (b)    1011 (c)     1110 (d)    1111 Ans: (d) 2.        The decimal number 16 in binary number is: (a)       1000 (b)    10000 (c)     1010 (d)    11000 Ans: (b) 3.        The decimal number 605 in binary number will be (a)     100101 (b)    10010111 (c)     1001011101 (d)    100101101. Ans: ( c) 4.        The binary number 1000 represents (a)     8 (b)    16 (c)     32 (d)    64. Ans: (a) 5.        Digital circuit can be made by repetitive use of (a)     OR gates (b)...