E. triple 3-input NAND gate

4. DUX sometimes is called

A. code converter B. data selector C. data distributor

D. decoder E. all answers are correct

5. What output of 1*4 demultiplexer will be chosen if selection lines AB=00?

A. D₁ B. D₀ C. D₂ D. D₃ E. any of them

6. For the circuit below if EI=5V, D₁=0, D₅=0 the state of L₁ to L₅ will be:

A. ON, ON, ON, ON, ON B.OFF, OFF, OFF, ON, ON

C.ON, ON, ON, OFF, OFF D. OFF, OFF, ON, ON, ON,

E. OFF, ON, ON, ON, OFF

7. For the circuit in question 6 if EI=0, D₀ to D₇=5V the state of L₁ to L₅ will be:

A. ON, ON, ON, ON, OFF B.OFF, OFF, OFF, ON, ON

C.ON, ON, ON, OFF, OFF D. OFF, OFF, ON, ON, ON,

E. OFF, ON, ON, ON, OFF

8. For the circuit in question 6 enable input is active-______. A ____ on this input forces all outputs to their inactive _____ state.

A. LOW, HIGH, LOW B.LOW, LOW, HIGH,

C. HIGH, LOW, HIGH D. HIGH, HIGH, LOW E. LOW, HIGH, HIGH

9. For priority encoder we have got input lines D₁, D₃, and D₆ active simultaneously. In such case output signal will be corresponded to …

A. D₁ B. D₃ C. D₆ D. D₁or D₃ E. D₃ or D₆

10. For the circuit in question 6 output signals are: L₁ is ON, L₂ is ON, L₃ is ON, GS is OFF, EO is ON. It means that

A. the chip is disabled B. any input signal is absent

C. number 7 is encodered D. number 0 is encodered

E. all answers are wrong

LABORATORY WORK # 10.