1
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
A Boolean function 'f' of two variables x and y is defined as follows: f(0,0)=f(0,1)=f(1,1)=1;f(1,0)=0 Assuming complements of x and y are not available, a minimum cost solution for realizing F using only 2-input NOR gates and 2-input OR gates (each having unit cost) would have a total cost
A
1 unit
B
4 unit
C
3 unit
D
2 unit
2
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
The Boolean expression AC + B$$\overline C $$ is equivalent to
A
$$\overline A \,C + B\overline C + AC$$
B
$$\overline B C\, + AC + B\overline C + \overline A C\overline B $$
C
AC+$$B\overline C + \overline B C + ABC$$
D
$$\overline A \,B\,\overline C + A\,B\,\overline C + A\overline {\,B} \,C$$
3
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
A lossless transmission line is terminated in a load which reflects a part of the incident power. The measured VSWR is 2. The percentage of the power that is reflected back is
A
57.73
B
33.33
C
0.11
D
11.11
4
GATE ECE 2004
MCQ (Single Correct Answer)
+1
-0.3
Consider a lossless antenna with a directive gain of + 6 dB. If 1 m W of power is fed to it the total power radiated by the antenna will be
A
4 m W
B
1 m W
C
7 m W
D
1/4 m W
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