The OR Operation

Name:

Class:

Date:

Show your work for each problem.

1.
What is the result of T OR F?
1. a)False
2. b)Cannot be determined
3. c)Error
4. d)True
2.
What is the result of F OR F?
1. a)True
2. b)Both
3. c)False
4. d)Undefined
3.
What is T OR T?
1. a)Invalid
2. b)False
3. c)True
4. d)Extra True
4.
Complete: F OR T = _____ (answer T or F)
5.
How many rows in the OR truth table have a True result? (answer with a number)
6.
Evaluate: (5 > 3) OR (2 > 8)
1. a)True
2. b)False
3. c)Both False
4. d)Undefined
7.
An alarm triggers if: smoke detected OR button pressed. There is no smoke and no one pressed the button. What happens?
1. a)Alarm triggers
2. b)Error in system
3. c)Cannot determine
4. d)Alarm does NOT trigger
8.
Evaluate: T OR F OR F (answer T or F)
9.
Evaluate: F OR F OR F (answer T or F)
10.
You get free dessert if: it's your birthday OR you have a coupon. Today is your birthday but you don't have a coupon. Do you get free dessert?
11.
Evaluate: (4 = 4) OR (10 < 5)
12.
Evaluate: (T AND F) OR (F OR T)
1. a)Error
2. b)False
3. c)Both
4. d)True
13.
A scholarship requires: GPA > 3.5 OR volunteer hours > 100 OR special talent. Sam has GPA 3.2, 50 volunteer hours, but plays piano professionally. Does Sam qualify?
1. a)No, Sam does not qualify
2. b)Yes, Sam qualifies
3. c)Only partially qualifies
4. d)Need more information
14.
Evaluate: (T OR F) AND (F OR T) AND (T OR T)
15.
A video game unlocks a bonus level if: player has 1000 coins OR player has defeated the boss OR player has played 10 hours. Alex has 500 coins, has NOT defeated the boss, but has played 12 hours. Does Alex unlock the bonus?
16.
If A OR B = True and A = False, what must B be? (answer T or F)