1
GATE ECE 2014 Set 1
MCQ (Single Correct Answer)
+2
-0.6
The output F in the digital logic circuit shown in the figure is GATE ECE 2014 Set 1 Digital Circuits - Logic Gates Question 12 English
A
$$F\, = \overline X YZ + X\overline Y Z$$
B
$$F\, = \overline X YZ + X\overline Y Z$$
C
$$F\, = \,\overline X \overline Y Z + XYZ$$
D
$$F\, = \,\overline X \overline Y \overline {Z + } XYZ$$
2
GATE ECE 2008
MCQ (Single Correct Answer)
+2
-0.6
Which of the follwing Boolean expression correctly represents the relation between P, Q, R and M1?

GATE ECE 2008 Digital Circuits - Logic Gates Question 13 English
A
M1=(P OR Q) XOR R
B
M1=(P AND Q) XOR R
C
M1=(P NOR Q) XOR R
D
M1=(P XOR Q) XOR R
3
GATE ECE 2002
MCQ (Single Correct Answer)
+2
-0.6
The gates G1 and G2 in figure have propagation delays of 10nsec and 20nsec respectively. If the input Vi makes an abrupt change from logic 0 to 1 at time t = t0, then the output waveform V0 is

GATE ECE 2002 Digital Circuits - Logic Gates Question 14 English
A
GATE ECE 2002 Digital Circuits - Logic Gates Question 14 English Option 1
B
GATE ECE 2002 Digital Circuits - Logic Gates Question 14 English Option 2
C
GATE ECE 2002 Digital Circuits - Logic Gates Question 14 English Option 3
D
GATE ECE 2002 Digital Circuits - Logic Gates Question 14 English Option 4
4
GATE ECE 2001
MCQ (Single Correct Answer)
+2
-0.6
In the figure the LED GATE ECE 2001 Digital Circuits - Logic Gates Question 15 English
A
emits light when both S1 and S2 are closed.
B
emits light when both S1 and S2 are open.
C
emits light when only S1 or S2 is closed.
D
does not emit light, irrespective of the switch positions.
GATE ECE Subjects
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