Python Programming MCQ - Variables And Operators

13. Which one is false regarding local variables?

A. These can be accessed only inside owning function
B. Any changes made to local variables does not reflect outside the function.
C. These remain in memory till the program ends
D. None of the above

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14. Which one is false regarding global variables?

A. Global variables can only be read inside the function declaring the variable as global inside the function.
B. Global variables remain in memory till the end of the program
C. Global variables are those which are declared in global scope.
D. None of the above

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15. How many local and global variables are there in the following Python code?

var1=5

def fn():

	var1=2

	var2=var1+5

var1=10

fn()

A. 1 local, 1 global variables
B. 1 local, 2 global variables
C. 2 local, 1 global variables
D. 2 local, 2 global variables

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16. What will be the output of the following Python code?

def fn():

	global var1

	var1=10

	var1=var1*5

	print(var1)

var1=5

fn()

print(var1)

A. 25
     5
B. 50
     5
C. 25
     25
D. 50
     50

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17. What will be the output of the following Python code?

x=5

def function1():

	global x

	y=x+x*2

	print(y)

x=7

function1()

print(x)

A. 21
     7
B. 15
     5
C. 21
     5
D. 15
     7

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18. What will be the value of variable y after execution of following Python code?

x="55"

y=x + str(9)

A. 64
B. 9
C. 559
D. Error

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19. Arrange this in order of Precedence.
1. Exponentiation
2. Parentheses
3. Multiplication and Division
4. Addition and Subtraction

A. 1,2,3,4
B. 2,1,3,4
C. 1,2,4,3
D. 2,3,1,4

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20. Which of this statment will give an error?

A. a++
B. ++a
C. a+=1
D. Both A and B

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21. Which operator is used to calculate power of x raise to y.

A. x^y
B. x*y
C. x**y
D. None of the above

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22. Operators with the same precedence are evaluated from?

A. Left to Right
B. Right to Left
C. Depends on Compiler
D. None of the above

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23. "in" is a operator in python?

A. True
B. False
C. Neither true nor false
D. None of the above

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24. What will be the output of statment 2**2**2**2

A. 16
B. 256
C. 32768
D. 65536

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25. What will be the output of the following code

 a = 1

 b = ++a

 print(b is a)

A. True
B. False
C. Error
D. None of the above

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