# A MUX network is shown in the given figure The value of Z1 is

1.  a + b + c

2.  ab + ac + bc

3.

4.

4

Explanation :
No Explanation available for this question

# A MUX network is shown in the given figure The circuit act as a

3.  Full sub tractor

4.  Half sub tractor.

4

Explanation :
No Explanation available for this question

# The output of the 4×1 multiplexer shown in the figure, is

1.  X+Y

2.   +

3.

4.

4

X+Y

Explanation :
No Explanation available for this question

# For the logic circuit shown in the figure, output Y is

1.

2.

3.

4.  None of these.

4

None of these.

Explanation :
No Explanation available for this question

# The 8-to-1 multiplexer shown in the figure realize which of the following Boolean expression

1.

2.

3.

4.  MUX is not enable.

4

Explanation :
No Explanation available for this question

# A retrigger able monoshot is one which

1.  Can be triggered only once

2.  Has two quasi-stable states

3.  Cannot be triggered until full pulse has

4.  Is capable of being triggered while the output is being.

4

Is capable of being triggered while the output is being.

Explanation :
No Explanation available for this question

# Part of a digital phase meter is shown in the given figure. If input signals are VR(t) =VRsinω And VP (t) =-VPsin(ω+300)then reading the meter will be

1.  300

2.  3300

3.  1500

4.  2100.

4

2100.

Explanation :
No Explanation available for this question

# A pulse train can be delayed by a finite number of periods using of clock

1.  A Serial-in-serial shift register

2.  A Serial-in-parallel-out shift register

3.  A parallel-in-serial-out shift register

4.  A Serial-in-serial shift register

4

A Serial-in-serial shift register

Explanation :
No Explanation available for this question

# Schmitt trigger is shown in the figure. The upper and the lower threshold voltage are respectively.

1.  2V, -4V

2.  2V, -2V

3.  4V, -4V

4.  4V, -2V.

4

4V, -4V

Explanation :
No Explanation available for this question

1.  2183 Hz

2.  869 Hz

3.  1369 Hz

4.  1443 Hz.

4