Test: Functions - 1 - EmSAT Achieve MCQ

# Test: Functions - 1 - EmSAT Achieve MCQ

Test Description

## 15 Questions MCQ Test - Test: Functions - 1

Test: Functions - 1 for EmSAT Achieve 2024 is part of EmSAT Achieve preparation. The Test: Functions - 1 questions and answers have been prepared according to the EmSAT Achieve exam syllabus.The Test: Functions - 1 MCQs are made for EmSAT Achieve 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Functions - 1 below.
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Test: Functions - 1 - Question 1

### Which of the following statements best describes a function in Python?

Detailed Solution for Test: Functions - 1 - Question 1

A function is a reusable block of code that performs a specific task. It helps in organizing code, making it modular and reusable.

Test: Functions - 1 - Question 2

### What is the purpose of using the "return" statement in a function?

Detailed Solution for Test: Functions - 1 - Question 2

The "return" statement is used to exit a function and return a value to the caller. It can also be used to return None if no value is specified.

Test: Functions - 1 - Question 3

### Which of the following types of functions does not return a value?

Detailed Solution for Test: Functions - 1 - Question 3

Void functions are functions that do not return a value. They perform a task without returning any output.

Test: Functions - 1 - Question 4

What is the difference between actual parameters and formal parameters in a function?

Detailed Solution for Test: Functions - 1 - Question 4

Actual parameters, also known as arguments, are the values passed to a function during function call. Formal parameters, also known as parameters or variables, are defined in the function's signature and receive values from the actual parameters.

Test: Functions - 1 - Question 5

Which keyword is used to define a function in Python?

Detailed Solution for Test: Functions - 1 - Question 5

The keyword "def" is used to define a function in Python. It is followed by the function name and parentheses containing any parameters.

Test: Functions - 1 - Question 6

What will be the output of the following code?

def add_numbers(a, b): return a + b

result = add_numbers(3, 7) print(result)

Detailed Solution for Test: Functions - 1 - Question 6

The add_numbers function takes two parameters, adds them, and returns the sum. The function is called with arguments 3 and 7, so the sum is 3 + 7 = 10, which is printed as the output.

Test: Functions - 1 - Question 7

What will be the output of the following code?

def greet(name="Guest"):
print("Hello, " + name + "!")
greet("Alice") greet()

Detailed Solution for Test: Functions - 1 - Question 7

The greet function has a default argument "name" set to "Guest." When called with an argument "Alice," it prints "Hello, Alice!" as the first output. When called without any arguments, it uses the default value and prints "Hello, Guest!" as the second output.

Test: Functions - 1 - Question 8

What will be the output of the following code?

x = 5

def change_x():
global x
x = 10

change_x()
print(x)

Detailed Solution for Test: Functions - 1 - Question 8

The function change_x modifies the value of the global variable x using the global keyword. When the function is called, the value of x is changed to 10. Therefore, the output is 10.

Test: Functions - 1 - Question 9

What will be the output of the following code?

def square(number):
return number ** 2

result = square(square(2))
print(result)

Detailed Solution for Test: Functions - 1 - Question 9

The square function squares its input parameter. In this case, square(2) returns 4. Then, square(4) is called, which returns 16. Finally, 16 is printed as the output.

Test: Functions - 1 - Question 10

What will be the output of the following code?

def multiply(a, b=2):
return a * b

result = multiply(5, 3)
print(result)

Detailed Solution for Test: Functions - 1 - Question 10

The multiply function multiplies its two parameters. In this case, it is called with arguments 5 and 3, so the result is 5 * 3 = 15, which is printed as the output.

Test: Functions - 1 - Question 11

What will be the output of the following code?

def increment(x):
x += 1
return x

def square(x):
x = increment(x)
return x ** 2

result = square(3)
print(result)

Detailed Solution for Test: Functions - 1 - Question 11

The square function calls the increment function to increment the input parameter x by 1. In this case, square(3) calls increment(3), which returns 4. Then, 4 is squared, resulting in 16.

Test: Functions - 1 - Question 12

What will be the output of the following code?

def outer_function():
x = 10

def inner_function():
nonlocal x
x += 5
print(x)

inner_function()
print(x)
outer_function()

Detailed Solution for Test: Functions - 1 - Question 12

The outer_function defines a variable x and calls the inner_function, which uses the nonlocal keyword to access and modify the outer variable x. After calling inner_function, the value of x is 15, which is printed as the output.

Test: Functions - 1 - Question 13

What will be the output of the following code?

def power(x, n):
if n == 0:
return 1
elif n % 2 == 0:
return power(x, n // 2) ** 2
else:
return x * power(x, n - 1)

result = power(2, 4)
print(result)

Detailed Solution for Test: Functions - 1 - Question 13

The power function calculates the power of a number recursively. In this case, power(2, 4) calculates 2 to the power of 4, which is 16.

Test: Functions - 1 - Question 14

What will be the output of the following code?

def multiply(a, *args):
result = a
for num in args:
result *= num
return result

result = multiply(2, 3, 4, 5)
print(result)

Detailed Solution for Test: Functions - 1 - Question 14

The multiply function multiplies the arguments passed to it. In this case, it is called with arguments 2, 3, 4, and 5. The result is calculated as 2 * 3 * 4 * 5 = 60, which is printed as the output.

Test: Functions - 1 - Question 15

What will be the output of the following code?

def outer():
x = 5

def inner():
nonlocal x
x = 10

inner()
print(x)
outer()

Detailed Solution for Test: Functions - 1 - Question 15

The outer function defines a variable x and calls the inner function, which uses the nonlocal keyword to modify the outer variable x. After calling inner, the value of x is changed to 10, which is printed as the output.

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