Unit 2.4 Assessment
This test is split into 4 sections. Each section starts with Foundation questions and ends with Higher/Challenge questions.
Gate Symbols (LO1)
1. Which symbol represents a NOT gate?
2. Which statement describes an OR gate?
3. Identify this symbol:
4. Why is accuracy important when drawing a NOT gate?
5. What formal name is used for the AND operator in the specification?
6. Which mathematical symbol is often used for OR?
Truth Tables (LO2)
7. NOT A
| A | Q |
|---|---|
| 0 | 1 |
| 1 |
8. A AND B
| A | B | Q |
|---|---|---|
| 1 | 0 |
9. A OR B
| A | B | Q |
|---|---|---|
| 0 | 1 |
Complete the 3-Input Truth Table: P = (A AND B) OR C
| A | B | C | P |
|---|---|---|---|
| 0 | 1 | 1 | 1 |
| 1 | 0 | 1 | |
| 1 | 1 | 0 | |
| 1 | 1 | 1 |
Logic Diagrams (LO3)
13. Which scenario matches this diagram? [A] -> [NOT] -> [Q]
14. Logic Gate ID: Which gate combines 2 inputs to output 1 only if BOTH are 1?
15. If Input A=1 and Input B=0 go into an OR gate, what is Q?
Questions 16-18: Fix the Circuit
Target: Q = NOT A AND (B OR C)
Click the gates to toggle types (AND / OR / NOT). Set them correctly.
Problem Solving (LO4)
19. Scenario: "You get a discount if you are a Student (A) OR have a Coupon (B)".
Which logic matches this?
20. Scenario: "Alarm sounds if Door Open (A) AND Key OFF (B)".
If Door is Closed (0) and Key is OFF (1), does alarm sound?
21. In diagrams, inputs are usually on the:
Questions 22-24: Logic Detective
System: Safe unlocks (Q=1) if:
Q = (CodeCorrect AND NOT LockedDown) OR MasterKey
22. If MasterKey is used (1), does it open?
23. Code is Correct (1), but LockedDown is (1). Open?
24. Which gate handles the "NOT LockedDown"?