1
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
The present output Qn of an edge triggered JK flip-flop is logic 0. If J=1, then Qn+1
A
can not be determined
B
will be logic 0
C
will be logic 1
D
will race around
2
GATE ECE 2004
MCQ (Single Correct Answer)
+1
-0.3
Choose the correct one from among the alternatives A, B, C, D after matching an item from Group 1 with the most appropriate item in Group 2.

Group1
P. shift register
Q. Counter
R. Decoder

Group2
1. Frequency division
2. Addressing in memory chips
3. Serial to parallel data conversion

A
P-3, Q-2, R-1
B
P-3, Q-1, R-2
C
P-2, Q-1, R-3
D
P-1, Q-3, R-2
3
GATE ECE 2004
MCQ (Single Correct Answer)
+1
-0.3
A master slave flip-flop has the characteristic that
A
change in the input immediately reflected in the output
B
change in the output occurs when the state of the master is affected
C
change in the output occurs when the state of the slave is affected
D
both the master and the slave states are affected at the same time
4
GATE ECE 2003
MCQ (Single Correct Answer)
+1
-0.3
A 0 to 6 counter consist of 3 flip-flops and a combination circuit of 2 input gate(s). The combination circuit consists of
A
one AND gate
B
one OR gate
C
one AND gate and one OR gate
D
two AND gates
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