Results
Q1. The logic function of the circuit shown is:
Correct answer is – OR’
Q2. The circuit shown here represents:
Correct answer is – an ‘AND’ gate
Q3. The diagram is the equivalent of which of the accompanying symbols:
Correct answer is – c.
Q4. The gate symbols shown are:
Correct answer is – AND’ and ‘NAND’
Q5. A gate which requires that all inputs must be HIGH to obtain an output would be:
Correct answer is – an ‘AND’ gate
Q6. This diagram represents:
Correct answer is – an ‘OR’ gate
Q7. To obtain logic ‘0’ at output ‘Z’ there must be:
Correct answer is – logic ‘1’ at ‘X’ and logic ‘1’ at ‘Y’
Q8. A transistor:
Correct answer is – can be used as a semiconductor to act as an automatic switch or an amplifier
Q9. A transistor:
Correct answer is – is made up of crystals in the arrangement of emitter, base and collector
Q10. A gate with only one input and one output:
Correct answer is – is a ‘NOT’ gate
Q11. The two most commonly used gates are:
Correct answer is – AND’ and ‘OR’
Q12. Truth tables illustrate the relationship between:
Correct answer is – inputs and outputs
Q13. The output expression for this type of gate is:
Correct answer is – EXCLUSIVE OR’
Q14. In order to energize the relay shown in this circuit, the logic state at the inputs must be:
Correct answer is – logic ‘1’ at points ‘A’ and ‘B’
Q15. The type of logic gate represented by this diagram is:
Correct answer is – NOT’
