Lists - Python Multiple Choice Questions

This set of Python Question Paper focuses on “Lists”.

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

>>>m = [[x, x + 1, x + 2] for x in range(0, 3)]

a) [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
b) [[0, 1, 2], [1, 2, 3], [2, 3, 4]]
c) [1, 2, 3, 4, 5, 6, 7, 8, 9]
d) [0, 1, 2, 1, 2, 3, 2, 3, 4]
View Answer

Answer: b
Explanation: Execute in the shell to verify.

2. How many elements are in m?

m = [[x, y] for x in range(0, 4) for y in range(0, 4)]

a) 8
b) 12
c) 16
d) 32
View Answer

Answer: c
Explanation: Execute in the shell to verify.

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

```
values = [[3, 4, 5, 1], [33, 6, 1, 2]]
```
```
 
```
```
v = values[0][0]
```
```
for row in range(0, len(values)):
```

    for column in range(0, len(values[row])):

```
        if v < values[row][column]:
```
```
            v = values[row][column]
```
```
 
```
```
print(v)
```

a) 3
b) 5
c) 6
d) 33
View Answer

Answer: d
Explanation: Execute in the shell to verify.

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

```
values = [[3, 4, 5, 1], [33, 6, 1, 2]]
```
```
 
```
```
v = values[0][0]
```
```
for lst in values:
```
```
    for element in lst:
```
```
        if v > element:
```
```
            v = element
```
```
 
```
```
print(v)
```

a) 1
b) 3
c) 5
d) 6
View Answer

Answer: a
Explanation: Execute in the shell to verify.

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

```
values = [[3, 4, 5, 1 ], [33, 6, 1, 2]]
```
```
 
```
```
for row in values:
```
```
    row.sort()
```
```
    for element in row:
```
```
        print(element, end = " ")
```
```
    print()
```

a) The program prints two rows 3 4 5 1 followed by 33 6 1 2
b) The program prints on row 3 4 5 1 33 6 1 2
c) The program prints two rows 3 4 5 1 followed by 33 6 1 2
d) The program prints two rows 1 3 4 5 followed by 1 2 6 33
View Answer

Answer: d
Explanation: Execute in the shell to verify.

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

```
matrix = [[1, 2, 3, 4],
```
```
       [4, 5, 6, 7],
```
```
       [8, 9, 10, 11],
```
```
       [12, 13, 14, 15]]
```
```
 
```
```
for i in range(0, 4):
```
```
    print(matrix[i][1], end = " ")
```

a) 1 2 3 4
b) 4 5 6 7
c) 1 3 8 12
d) 2 5 9 13
View Answer

Answer: d
Explanation: Execute in the shell to verify.

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

```
def m(list):
```
```
    v = list[0]
```
```
    for e in list:
```
```
      if v < e: v = e
```
```
    return v
```
```
 
```
```
values = [[3, 4, 5, 1], [33, 6, 1, 2]]
```
```
 
```
```
for row in values: 
```
```
    print(m(row), end = " ")
```

a) 3 33
b) 1 1
c) 5 6
d) 5 33
View Answer

Answer: d
Explanation: Execute in the shell to verify.

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

data = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]

```
 
```
```
print(data[1][0][0])
```

a) 1
b) 2
c) 4
d) 5
View Answer

Answer: d
Explanation: Execute in the shell to verify.

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

data = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]

```
 
```
```
def ttt(m):
```
```
    v = m[0][0]
```
```
 
```
```
    for row in m:
```
```
        for element in row:
```
```
           if v < element: v = element
```
```
 
```
```
    return v
```
```
 
```
```
print(ttt(data[0]))
```

a) 1
b) 2
c) 4
d) 5
View Answer

Answer: c
Explanation: Execute in the shell to verify.

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

```
points = [[1, 2], [3, 1.5], [0.5, 0.5]]
```
```
points.sort()
```
```
print(points)
```

a) [[1, 2], [3, 1.5], [0.5, 0.5]]
b) [[3, 1.5], [1, 2], [0.5, 0.5]]
c) [[0.5, 0.5], [1, 2], [3, 1.5]]
d) [[0.5, 0.5], [3, 1.5], [1, 2]]
View Answer

Answer: c
Explanation: Execute in the shell to verify.

Sanfoundry Global Education & Learning Series – Python.

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