Quiz based on Digital Electronics

1. A ring counter consisting of five flip flops will have ____________

A. 5 states
B. 10 states
C. 15 states
D. 32 states

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A. 5 states

2.A 4 bit down counter can count from ___________

A. 0000 to 1111
B. 000 to 111
C. 9999 to 0000
D. 1111 to 0000

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D. 1111 to 0000

3. In Boolean Algebra A.(A+B)=?

A. A+B
B. 0
C. A
D. B

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C. A

4. _____________ are the basic building block of all digital circuits.

A. Flip-flops
B. Transistors
C. Basic gates
D. MUX

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C. Basic gates

5. The example of sequential logic is_____

A. PROM
B. Sequence detector
C. ALU
D. Adder

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B. Sequence detector

6. Number of states in a decade counter is ______.

A. 32
B. 8
C. 16
D. 10

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D. 10

7.Following register allows movement of digital data in left or right direction.

A. Latch Register
B. Shift Register
C. Counter
D. Process Register

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B. Shift Register

8. The following gate output is zero when all the input levels applied is high.

A. EX-OR
B. NAND
C. EX-NOR
D. NOR

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B. NAND

9. Boolean algebra allows following number of levels

A. One
B. Two
C. Three
D. Four

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B. Two

10. A 8:1 multiplexer has __________ number of select lines.

A. one
B. two
C. three
D. four

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C. three