A 1
B 2
C 4
D 5

A (A)
B (B)
C (C)
D (D)

A
B
C
D

A
B
C
D None of these

# Q5:The following waveform pattern is for a(n) ________.

A 2-input AND gate
B 2-input OR gate
C Exclusive-OR gate
D None of the above

# Q6:The following waveform pattern is for a(n) ________.

A 2-input AND gate
B 2-input OR gate
C Exclusive-OR gate
D None of the above

# Q7: A 4-variable AND-OR circuit produces a 0 at its Y output. Which combination of inputs is correct?

A A = 0, B = 0, C = 1, D = 1
B A = 1, B = 1, C = 0, D = 0
C A = 1, B = 1, C = 1, D = 1
D A = 1, B = 0, C = 1, D = 0

# Q8: The output of an exclusive-NOR gate is 1. Which input combination is correct?

A A = 1, B = 0
B A = 0, B = 1
C A = 0, B = 0
D none of the above

# Q9: To implement the expression , it takes one OR gate and ________.

A three AND gates and three inverters
B three AND gates and four inverters
C three AND gates
D one AND gate

# Q10: A logic circuit with an output  consists of ________.

A two AND gates, two OR gates, two inverters
B three AND gates, two OR gates, one inverter
C two AND gates, one OR gate, two inverters
D two AND gates, one OR gate

# Q11: Implementation of the Boolean expression  results in ________.

A three AND gates, one OR gate
B three AND gates, one NOT gate, one OR gate
C three AND gates, one NOT gate, three OR gates
D three AND gates, three OR gates

# Q12: A 4-variable AND-OR circuit produces a 1 at its Y output. Which combination of inputs is correct?

A A = 0, B = 0, C = 0, D = 0
B A = 0, B = 1, C = 1, D = 0
C A = 1, B = 1, C = 0, D = 0
D A = 1, B = 0, C = 0, D = 0

A 1
B 2
C 3
D 4

A (A)
B (B)
C (C)
D (D)

A 1
B 2
C 3
D 4

A 1
B 2
C 3
D 4

A
B
C
D

# Q18: A 4-variable AND-OR-Invert circuit produces a 0 at its Y output. Which combination of inputs is correct?

A
B
C
D none of the above

# Q19:The following waveform pattern is for a(n) ________.

A 2-input AND gate
B 2-input OR gate
C Exclusive-OR gate
D None of the above

A 1
B 2
C 4
D 5

A 10111100
B 10111000
C 11100111
D 00011101

A (A)
B (B)
C (C)
D (D)

# Q23: One positive pulse with tw = 75 µs is applied to one of the inputs of an exclusive-OR circuit. A second positive pulse with tw = 15 µs is applied to the other input beginning 20 µs after the leading edge of the first pulse. Which statement describes the output in relation to the inputs?

A The exclusive-OR output is a 20 s pulse followed by a 40 s pulse, with a separation of 15 s between the pulses.
B The exclusive-OR output is a 20 s pulse followed by a 15 s pulse, with a separation of 40 s between the pulses.
C The exclusive-OR output is a 15 s pulse followed by a 40 s pulse.
D *The exclusive-OR output is a 20 s pulse followed by a 15 s pulse, followed by a 40 s pulse.

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