logic gates

#4. The gate symbols shown are

• A‘AND’ and ‘NAND’
• B‘EXCLUSIVE OR’ and ‘EXCLUSIVE NOR’
• C ‘OR’ and ‘NOR’
• D ‘OR’ and ‘EXCLUSIVE OR’

#5. A gate which requires that all inputs must be HIGH to obtain an output would be:

• A a ‘NOR’ gate.
• B an ‘OR’ gate.
• C an ‘AND’ gate.
• D a ‘NOT’ gate.

#11. The two most commonly used gates are:

• A‘NOT’ and ‘NOR’
• B ‘OR’ and ‘EXCLUSIVE AND’
• C ‘AND’ and ‘OR’
• D ‘AND’ and ‘NAND’