Digital Electronics MCQs Set-24 Contain the randomly compiled Digital Electronics MCQs (Multiple Choice Questions and answers ) from various reference books and Questions papers for those who is preparing for the various Competitive Exams,Technical Interviews and University Level Exams.
1. The………. gate is also called any-or-all gate.
- OR
- AND
- NOT
- EX-OR
A. OR
2. A logic gate is an electronic circuit which
- makes logic decisions
- allows electron flow only in one direction
- works on binary algebra
- alternates between 0&1 values
A. makes logic decisions
3. In positive logic, logic gate 1 corresponds to
- positive voltage
- higher voltage level
- zero voltage level
- lower voltage level
B. higher voltage level
4. In negative logic, the logic state 1 corresponds to
- negative logic
- zero voltage
- more negative voltage
- lower voltage level
D. lower voltage level
5. The output of a 2-input OR the gate is 0 only when it’s
- both inputs are 0
- either input is 1
- both inputs are 1
- either input is 0
A. both inputs are 0
6. An X-OR gate produces an output only when it’s two inputs are
- high
- low
- different
- same
C. different
7. An AND gate
- implements logic addition
- is equivalent to a series switching circuit
- is an any-or-all gate
- is equivalent to a parallel switching circuit
B. is equivalent to a series switching circuit
8. When an input electrical signal A=10100 is applied to a NOT gate, it’s output Signal is
- 01011
- 10101
- 10100
- )00101
A. 01011
9. The only function of a NOT gate is to
- stop a signal
- recomplement a signal
- invert an input signal
- act as a universal set
C. invert an input signal