Chapter 3 COMBINATIONAL LOGIC CIRCUITS MCQs

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1. A logic circuit which converts a decimal number to binary number is called





2. Multiplexer is also called





3. When all LEDs of seven segment are ON, the digit will be displayed





4. Which IC is 4 ×16 decoder?





5. An encoder converts a decimal number into





6. A logic circuit which selects one input from many inputs by means of a control input





7. The type of seven segment display in which all cathodes of LEDs are shorted is called





8. Which IC is common anode display decoder?





9. De-multiplexer is also called





10. Which LED of seven segment should be off to display the digit “0”





11. A 16 × 1 multiplexer has control inputs





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