Question 1: Complete the truth table for an AND gate with two inputs, A and B. Fill in the output column based on all possible input combinations.

Answer: A B | Output 0 0 | 0 0 1 | 0 1 0 | 0 1 1 | 1

Question 2: Complete the truth table for an OR gate with two inputs, A and B. Fill in the output column for all input combinations.

Answer: A B | Output 0 0 | 0 0 1 | 1 1 0 | 1 1 1 | 1

Question 3: Complete the truth table for a NOT gate with input A. Fill in the output column.

Answer: A | Output 0 | 1 1 | 0

Question 4: Complete the truth table for a NAND gate with two inputs, A and B. Fill in the output for all input combinations.

Answer: A B | Output 0 0 | 1 0 1 | 1 1 0 | 1 1 1 | 0

Question 5: Complete the truth table for a NOR gate with two inputs, A and B. Fill in the output for all input combinations.

Answer: A B | Output 0 0 | 1 0 1 | 0 1 0 | 0 1 1 | 0

Question 6: Draw the logic circuit for an AND gate. Label the inputs and the output.

Answer: A correct sketch would show a D-shaped symbol with two inputs entering on the left and one output on the right, with the label 'AND'.

Question 7: Draw the logic circuit for an OR gate. Label the inputs and the output.

Answer: A correct sketch would show a curved shape with two inputs entering on the left and one output on the right, labeled 'OR'.

Question 8: Sketch a logic circuit that uses NOT and AND gates to produce a circuit that outputs true only when A is true and B is false.

Answer: A correct sketch would include a NOT gate connected to input B, feeding into an AND gate along with input A. The output of the AND gate is the final output.

Question 9: Describe a scenario where a combination of AND, OR, and NOT gates could be used to control a security alarm. Use verbal description only.

Answer: A possible scenario is: The alarm activates only if the door is open (input D) AND the alarm switch is on (input S), but only if the security mode is active (input M). The security mode input is inverted using a NOT gate to ensure the alarm only triggers when security mode is off. The inputs D and S go into an AND gate, and the output is combined with the inverted security mode input via another AND gate. The final output controls the alarm.

Question 10: Explain the difference between a NAND gate and a NOR gate in your own words.

Answer: A NAND gate produces a false output only when all inputs are true; otherwise, it outputs true. A NOR gate produces a true output only when all inputs are false; otherwise, it outputs false.

Question 11: Sketch a truth table for a XOR gate with two inputs, A and B. Label the output as 'XOR'.

Answer: A B | XOR 0 0 | 0 0 1 | 1 1 0 | 1 1 1 | 0