Practice Online Digital Electronics Test and check your score before you appear for your next written test.
Digital Electronics MCQ Online Test
1. The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either
A) a NOR or an X-NOR
B) a NAND or an X-OR
C) an OR or an X-NOR
D) an AND or an X-OR
2. For checking the parity of a digital word, it is preferable to use
A) AND gates
B) NOR gates
C) NAND gates
D) X-OR gates
3. A gate is enabled when its enable input is at logic 1. The gate is
A) NAND
B) NOR
C) none of the answers
D) OR
4. The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either
A) an OR or a NAND
B) an X-OR or an X-NOR
C) an AND or an X-NOR
D) a NAND or a NOR
5. The output of a gate is HIGH if and only if all its inputs are LOW. It is true for
A) NOR
B) X-NOR
C) X-OR
D) NAND
6. A bubbled NOR gate is equivalent to a
A) AND gate
B) X-OR gate
C) NOR gate
D) NAND gate
7. The output of a gate is LOW when at least one of its inputs is HIGH. This is true for
A) NOR
B) AND
C) OR
D) NAND
8. The output of a gate is HIGH when at least one of its inputs is LOW. It is true for
A) NAND
B) NOR
C) OR
D) X-OR
9. Which of the following gates cannot be used as an inverter?
A) AND
B) NAND
C) X-NOR
D) NOR
10. A gate is disabled when its disable input is at logic 0. The gate is
A) AND
B) none of the answers
C) OR
D) NOR
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Take All Tests :
- Digital Electronics Quiz – Set 1
- Digital Electronics Quiz – Set 2
- Digital Electronics Quiz – Set 3
- Digital Electronics Quiz – Set 4
- Digital Electronics Quiz – Set 5
- Digital Electronics Quiz – Set 6
- Digital Electronics Quiz – Set 7
- Digital Electronics Quiz – Set 8
- Digital Electronics Quiz – Set 9
- Digital Electronics Quiz – Set 10
- Digital Electronics Quiz – Set 11
Tough questions