Python Conditional Statements

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Questions and Answers

In Python, which statement is used to execute a block of code only if a specified condition is true?

`else`
`if` (correct)
`elif`
`while`

In Python, indentation is purely for readability and does not affect the execution of conditional statements.

False (B)

What is the primary purpose of the `elif` statement in Python?

To specify a new condition if the first condition is false

The `______` statement in Python is used to execute a block of code when the condition in the `if` statement is false.

else Signup and view all the answers

Match each conditional statement with its correct description in Python:

<code>if</code> = Specifies a block of code to be executed if a condition is true. <code>else</code> = Specifies a block of code to be executed if the same condition is false. <code>elif</code> = Specifies a new condition to test if the first condition is false. Signup and view all the answers

Which of the following is the correct syntax for an `if` statement in Python?

if condition: code (D) Signup and view all the answers

In Python, logical conditions such as equals, not equals, less than, and greater than can only be used within `if` statements and not within loops.

False (B) Signup and view all the answers

In Python, what error will occur if the code inside an `if` statement is not properly indented?

IndentationError Signup and view all the answers

In a nested `if` statement, the inner `if` statement is executed only if the condition of the ______ `if` statement is true.

outer Signup and view all the answers

Match each logical operator with its corresponding symbol in Python:

Equals = <code>==</code> Not Equals = <code>!=</code> Less than = <code><</code> Greater than or equal to = <code>>=</code> Signup and view all the answers

What output will the following Python code produce?

a = 15
if a > 10:
    print("Above 10")
if a > 20:
    print("Above 20")
else:
    print("Not above 20")

Above 10 Not above 20 (D) Signup and view all the answers

In Python, you can only have one `elif` statement in a conditional block.

False (B) Signup and view all the answers

In Python, what keyword is used to introduce the first conditional check in a series of conditional statements?

if Signup and view all the answers

In Python, the condition in an `if` statement must evaluate to a ______ value (True or False).

boolean Signup and view all the answers

Match the conditional operator with its definition:

<code>a == b</code> = Checks if <code>a</code> is equal to <code>b</code>. <code>a != b</code> = Checks if <code>a</code> is not equal to <code>b</code>. <code>a < b</code> = Checks if <code>a</code> is less than <code>b</code>. <code>a > b</code> = Checks if <code>a</code> is greater than <code>b</code>. Signup and view all the answers

What is the purpose of the following Python code?

if x > 5:
    y = 10
else:
    y = 5

To assign the value of 10 to y if x is greater than 5, otherwise assign 5 to y (B) Signup and view all the answers

In Python, the `else` block in an `if-else` statement is optional.

True (A) Signup and view all the answers

In Python, how does the use of `elif` differ from using multiple separate `if` statements?

<code>elif</code> is only checked if the preceding <code>if</code> (or <code>elif</code>) condition is false, whereas separate <code>if</code> statements are always checked Signup and view all the answers

The primary reason Python relies on `______` to define scope in conditional statements is to enhance code readability and avoid ambiguity.

indentation Signup and view all the answers

Match the conditional statement with its corresponding usage.

<code>if</code> statement = To execute a block of code if a condition is true <code>else</code> statement = To execute a block of code if the condition in the 'if' statement is false <code>elif</code> statement = To specify a new condition to test, if the first condition is false Signup and view all the answers

What will be printed when the following Python code is executed?

x = 5
if x > 10:
    print("Greater than 10")
elif x > 5:
    print("Greater than 5")
else:
    print("Not greater than 5")

Not greater than 5 (D) Signup and view all the answers

In Python, an `if` statement can be used without an `elif` or `else` statement.

True (A) Signup and view all the answers

Explain the significance of the colon (`:`) at the end of an `if` statement’s condition in Python.

It signifies the start of an indented block to be executed if the condition is true. Signup and view all the answers

A nested `if` statement is an `if` statement inside ______ `if` statement(s).

another Signup and view all the answers

Match the following descriptions of different Python conditional statement structures:

Simple <code>if</code> = A single condition, executed if true. <code>if-else</code> = A condition and an alternative if the condition is false. <code>if-elif-else</code> = Multiple conditions with a default at the end if none are true. Nested <code>if</code> = Conditional statements within other conditional statements. Signup and view all the answers

What output will the following Python code produce?

age = 25
if age > 10:
    print("Above 10")
    if age > 20:
        print("Above 20")
    else:
        print("Not above 20")

Above 10 Above 20 (D) Signup and view all the answers

In Python, the `else` statement can be used independently without an `if` statement.

False (B) Signup and view all the answers

In the context of Python conditional statements, what is a 'logical condition'?

An expression that evaluates to either <code>True</code> or <code>False</code>. Signup and view all the answers

In Python, when using a nested `if` statement, the level of `______` determines which `if` the `else` statement belongs to.

indentation Signup and view all the answers

Match the examples of Python conditional statements with their output based on `x = 7` and `y = 10`.

<code>if x < y: print("x is less than y")</code> = <code>x is less than y</code> <code>if x == y: print("x and y are equal") else: print("x and y not equal")</code> = <code>x and y not equal</code> <code>if x > 10: print("x is greater than 10") elif x > 5: print("x is greater than 5") else: print("x is not greater than 5")</code> = <code>x is greater than 5</code> Signup and view all the answers

Flashcards

Conditional Statements

Statements that execute different code based on conditions.

"if" statement

A conditional statement that executes a block of code if a condition is true.

"else" statement

A conditional statement that executes a block of code if the condition in the "if" statement is false.