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Directions to Solve

In the following questions choose the word which is the exact OPPOSITE of the given words.

Q1: CULPABLE

A Blameless

B Careless

C Defendable

D Irresponsible

Q2:
What will be the output of the program? 
#include<stdio.h>
#include<stdarg.h>
void display(int num, ...);

int main()
{
    display(4, 'A', 'B', 'C', 'D');
    return 0;
}
void display(int num, ...)
{
    char c, c1; int j;
    va_list ptr, ptr1;
    va_start(ptr, num);
    va_start(ptr1, num);
    for(j=1; j<=num; j++)
    {
        c = va_arg(ptr, int);
        printf('%c', c);
        c1 = va_arg(ptr1, int);
        printf('%d\n', c1);
    }
}

A A, 0
B, 0
C, 0
C, 0

B A, A
B, B
C, C
D, D

C A, a
B, b
C, c
D, d

D A, a
B, b
C, c
D, d

Q3: If the output of a three-input AND gate must be a logic LOW, what must the condition of the inputs be?

A At least one input must be HIGH.

B All inputs must be HIGH.

C At least one input must be LOW.

D All inputs must be LOW.

Q4: Logically, the output of a NOR gate would have the same Boolean expression as a(n):

A AND gate immediately followed by an inverter

B NOR gate immediately followed by an inverter

C OR gate immediately followed by an inverter

D NAND gate immediately followed by an inverter

Q5: A logic probe is placed on the output of a gate and the display indicator is dim. A pulser is used on each of the input terminals, but the output indication does not change. What is wrong?

A The dim indication on the logic probe indicates that the supply voltage is probably low.

B The dim indication is the result of a bad ground connection on the logic probe.

C The gate is a tristate device.

D The output of the gate appears to be open.

Q6: What is the Boolean expression for a three-input AND gate?

A A $ B $ C

B X = A + B + C

C
X = A · B · C
 

D A – B – C

Q7: Which of the following gates has the exact inverse output of the OR gate for all possible input combinations?

A NOT

B AND

C NOR

D NAND

Q8: What is the difference between a 7400 and a 7411 IC?

A 7400 has two four-input AND gates; 7411 has three three-input NAND gates

B 7400 has four two-input NAND gates; 7411 has three three-input AND gates

C 7400 has four two-input AND gates; 7411 has three three-input NAND gates

D 7400 has two four-input NAND gates; 7411 has three three-input AND gates

Q9: Write the Boolean expression for an inverter logic gate with input C and output Y.

A Y = 

B Y = C

Q10: The output of an exclusive-OR gate is HIGH if ________.

A none of the above

B the inputs are unequal

C all inputs are LOW

D all inputs are HIGH