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Directions to Solve
In the following questions choose the word which is the exact OPPOSITE of the given words.
ANS:B - Relaxed
No answer description is available.
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ANS:A - AptitudeCrack 1 7 11 0
No answer description is available. Let's discuss.
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ANS:A - HIGH
In a negative logic, high (0), low (1). Here 3 is present in the range below 1 so it is logic low therefore in negative logic it is high.
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ANS:D - unacceptable
We know that: (0.8 - 2.0)v is unacceptable in our digital system. So for D is correct.
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ANS:C - number systems
No answer description is available.
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ANS:C - +5 V
Low level voltage from 0 to 0.8.
High level voltage from 2 to 5.
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ANS:C - program
No answer description is available.
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ANS:C - A = 1, B = 1, C = 1
The output of an AND gate is high (1) only when all the inputs are high, even if anyone of the input is low (0) then the output will be low (0).
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ANS:A - 1
Because in nor gate if any of the input is high the output is low.
So, we are left with only one case when output is high i.e. A=0, B=0 and C=0.
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ANS:B - NAND
Check the answer using two inputs it also gives the same answer that I explain using three inputs.
Considering the truth table of NAND gate.
A B OUTPUT
0 0 1
0 1 1
1 0 1
1 1 0 = here we get the output HIGH when the two inputs are LOW.
Considering the truth table for OR gate.
A B OUTPUT
0 0 0
0 1 1
1 0 1
1 1 1 = here the output is HIGH when the two inputs are HIGH.
BUT question said first input must be LOW when the output is HIGH. So we can't get OR gate as the answer.
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