1
GATE ECE 1987
MCQ (Single Correct Answer)
+2
-0.6
For the system shown in figure the transfer function $$\frac{\mathrm C\left(\mathrm s\right)}{\mathrm R\left(\mathrm s\right)}$$ is equal to GATE ECE 1987 Control Systems - Signal Flow Graph and Block Diagram Question 10 English
A
$$\frac{10}{\mathrm s^2\;+\;\mathrm s\;+\;10}$$
B
$$\frac{10}{\mathrm s^2\;+\;11\mathrm s\;+\;10}$$
C
$$\frac{10}{\mathrm s^2\;+\;9\mathrm s\;+\;10}$$
D
$$\frac{10}{\mathrm s^2\;+\;2\mathrm s\;+\;10}$$
2
GATE ECE 1987
MCQ (Single Correct Answer)
+1
-0.3
Choose the correct statements relating to the circuit of figure GATE ECE 1987 Digital Circuits - Sequential Circuits Question 16 English
A
For Vi = -2V, P=0
B
For Vi = +3V, P=0
C
For Vi = 0V, P=0 always
D
For Vi = 0V, P can be either 0 or 1.
3
GATE ECE 1987
MCQ (Single Correct Answer)
+1
-0.3
A ripple counter using negative edge-triggered D-flip flops is shown in Fig.1. The flip-flops are cleared to '0' by a '0' at the R input. The feedback logic is to be designed to obtain the count sequence shown in the same figure. The correct feedback logic is: GATE ECE 1987 Digital Circuits - Sequential Circuits Question 20 English 1 GATE ECE 1987 Digital Circuits - Sequential Circuits Question 20 English 2
A
$$F\, = \overline {{Q_2}{Q_1}\overline {{Q_0}} } $$
B
$$F\, = \,{Q_2}\,\overline {{Q_1}} \overline {{Q_0}} $$
C
$$F\, = \,\overline {{Q_2}} \overline {{Q_1}} {Q_0}$$
D
$$F\, = \,\overline {{Q_2}} \overline {{Q_1}} \overline {{Q_0}} $$
4
GATE ECE 1987
MCQ (Single Correct Answer)
+2
-0.6
Given that for a logic family,

$${V_{OH}}$$ is the minimum output high-level voltage
$${V_{OL}}$$ is the minimum output low-level voltage
$${V_{IH}}$$ is the minimum output high-level voltage and
$${V_{IL}}$$ is the minimum output low-level voltage.
The correct relationship is:

A
$${V_{IH}}$$ >$${V_{OH}}$$ >$${V_{IL}}$$ >$${V_{OL}}$$
B
$${V_{OH}}$$ > $${V_{IH}}$$> $${V_{IL}}$$ >$${V_{OL}}$$
C
$${V_{IH}}$$>$${V_{OH}}$$ >$${V_{OL}}$$ >$${V_{IL}}$$
D
$${V_{OH}}$$ > $${V_{IH}}$$>$${V_{OL}}$$ >$${V_{IL}}$$