Unit 7 Pretest - Selection and Logical Expressions

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What will this program output?

A

Nothing

B

What will this program output?

Low

High

Error message

High Low

Consider this code: age = 16 if age >= 18: print("Adult") else: print("Minor") Why does the program print "Minor" instead of "Adult"?

The if statement is written incorrectly

The program has a syntax error

The else statement overrides the if statement

In a flowchart, which shape represents a decision point where the program must choose between different paths?

Rectangle

Instructions for user input

Output commands to display on screen

A calculation or mathematical operation

Which flowchart structure best represents this logic: "If the temperature is above 75, display 'Hot.' Otherwise, display 'Cool.'"?

A decision diamond with two different paths based on the condition

A straight sequence with no branching

Two separate start points leading to different programs

A loop that repeats the temperature check

What is the result of evaluating the condition: 5 >= 5?

True

Error

False

None

Why must the condition inside an if statement evaluate to either True or False?

Because False conditions cause errors

Because Python requires all statements to be boolean

Because True and False are the only words Python recognizes

What is the primary purpose of an else statement in a program?

To repeat code multiple times

To stop a program from running

To check multiple conditions at the same time

To handle all remaining cases when previous conditions are False

B

A

C

You need to write a program that assigns letter grades based on test scores: A for 90+, B for 80-89, C for 70-79, D for 60-69, and F for below 60. Which control structure is best suited for this task?

An if/else structure

A single if statement

An if/elif/else structure

A while loop

In an if/elif/else structure, how many code blocks can actually execute when the program runs?

As many as there are elif statements

Two or three depending on the conditions

All of them

Only one

Consider this scenario: A program needs to check if a number is positive, negative, or zero. Why would if/elif/else be better than using three separate if statements?

It allows all conditions to be checked simultaneously

It uses less memory

It runs faster

It prevents unnecessary checks once a condition is found to be True

Medium and Low

Medium

Low

Very High

If you want to check whether a student's grade is between 80 and 90 (inclusive), which condition would work?

grade == 80 or grade == 90

grade >= 80 and grade <= 90

grade > 80 and grade < 90

grade between 80 and 90

What is the key difference between how an if/else structure and an if/elif/else structure handle multiple conditions?

if/else can only handle two cases while if/elif/else can handle many

if/elif/else stops checking after the first True condition, while if/else always checks both

They work exactly the same way

if/else is faster than if/elif/else

Hot

Cold

Cool

Comfortable

Consider this code: password = "secret123" if password == "secret123": print("Access Granted") else: print("Access Denied") Why is the == operator used instead of = in the condition?

Because the password needs to be assigned a value

Because == is faster than =

Because = is used for assignment and == is used for comparison

What will this program output?

A

Nothing

B

What will this program output?

Low

High

Error message

High Low

Consider this code:  
age = 16 
if age >= 18:
     print("Adult") 
else:
     print("Minor")  

Why does the program print "Minor" instead of "Adult"?

The if statement is written incorrectly

The program has a syntax error

The else statement overrides the if statement

In a flowchart, which shape represents a decision point where the program must choose between different paths?

Rectangle

Instructions for user input

Output commands to display on screen

A calculation or mathematical operation

Which flowchart structure best represents this logic: 
"If the temperature is above 75, display 'Hot.' Otherwise, display 'Cool.'"?

A decision diamond with two different paths based on the condition

A straight sequence with no branching

Two separate start points leading to different programs

A loop that repeats the temperature check

What is the result of evaluating the condition: 5 >= 5?

True

Error

False

None

Why must the condition inside an if statement evaluate to either True or False?

Because False conditions cause errors

Because Python requires all statements to be boolean

Because True and False are the only words Python recognizes

What is the primary purpose of an else statement in a program?

To repeat code multiple times

To stop a program from running

To check multiple conditions at the same time

To handle all remaining cases when previous conditions are False

B

A

C

You need to write a program that assigns letter grades based on test scores: A for 90+, B for 80-89, C for 70-79, D for 60-69, and F for below 60. Which control structure is best suited for this task?

An if/else structure

A single if statement

An if/elif/else structure

A while loop

In an if/elif/else structure, how many code blocks can actually execute when the program runs?

As many as there are elif statements

Two or three depending on the conditions

All of them

Only one

Consider this scenario: A program needs to check if a number is positive, negative, or zero. Why would if/elif/else be better than using three separate if statements?

It allows all conditions to be checked simultaneously

It uses less memory

It runs faster

It prevents unnecessary checks once a condition is found to be True

Medium and Low

Medium

Low

Very High

If you want to check whether a student's grade is between 80 and 90 (inclusive), which condition would work?

grade == 80 or grade == 90

grade >= 80 and grade <= 90

grade > 80 and grade < 90

grade between 80 and 90

What is the key difference between how an if/else structure and an if/elif/else structure handle multiple conditions?

if/else can only handle two cases while if/elif/else can handle many

if/elif/else stops checking after the first True condition, while if/else always checks both

They work exactly the same way

if/else is faster than if/elif/else

Hot

Cold

Cool

Comfortable

Consider this code:  

password = "secret123" 
if password == "secret123":
     print("Access Granted") 
else:
     print("Access Denied")

Why is the == operator used instead of = in the condition?

Because the password needs to be assigned a value

Because == is faster than =

Because = is used for assignment and == is used for comparison