SciPy Online Quiz, SciPy MCQ Quiz and SciPy Online Test, W3Schools, Great Learning

1 .

SciPy stands for?

A)

source library

B)

science library

C)

scientific library

D)

significant library

Correct Answer : scientific library

Explanation : SciPy, a scientific library for Python is an open source, BSD-licensed library for mathematics, science and engineering.

2 .

Which of the following is not correct sub-packages of SciPy?

A)

scipy.cluster

B)

scipy.source

C)

scipy.signal

D)

scipy.interpolate

Correct Answer : scipy.source

Explanation : scipy.source is not correct sub-packages of SciPy.

3 .

What is "h" stand for Constant?

A)

Planck constant

B)

Elementary charge

C)

Molar gas constant

D)

Newton's gravitational constant

Correct Answer : Planck constant

Explanation : h : Planck constant

4 .

SciPy was developed by?

A)

Jim Hugunin

B)

Wes McKinney

C)

Guido van Rossum

D)

Travis Oliphant

Correct Answer : Travis Oliphant

5 .

When dealing with curves, what are the high points called?

A)

top

B)

high

C)

slope

D)

maxima

Correct Answer : maxima

6 .

Which of the following is true in SciPy?

A)

SciPy is built on top of NumPy arrays

B)

There is no need to import the NumPy functions explicitly, when SciPy is imported.

C)

By default, all the NumPy functions have been available through the SciPy namespace

D)

All of the above

Correct Answer : All of the above

Explanation : scipy.source is not correct sub-packages of SciPy.

7 .

When dealing with curves, what are the low points called?

A)

Up

B)

low

C)

minima

D)

bottom

Correct Answer : minima

8 .

When dealing with curves, what are the highest point in the whole curve called?

A)

global maxima

B)

maxima

C)

maximo dutti

D)

None of the above

Correct Answer : global maxima

9 .

what is constant defined for Boltzmann constant in SciPy?

A)

R

B)

k

C)

G

D)

e

Correct Answer : k

Explanation : k : Boltzmann constant

10 .

Which explanation is correct for 'Sparse Data'?

A)

A data set where most of the item values are zero

B)

A data set with only negative values

C)

A data set where all numbers are higher than the previous number

D)

None of the above

Correct Answer : A data set where most of the item values are zero.

11 .

In SciPy, determinant is computed using?

A)

det()

B)

SciPy.det()

C)

determinant()

D)

SciPy.determinant()

Correct Answer : det()

Explanation : In SciPy, this is computed using the det() function.

12 .

What do we call an array where the content is the opposite of 'Sparse Data'?

A)

Full Array

B)

Lower Data

C)

Dense Array

D)

All of the above

Correct Answer : Dense Array

13 .

One of these methods is used when working with triangulation, which one?

A)

Duval()

B)

Delaunay()

C)

Dmitri()

D)

None of the above

Correct Answer : Delaunay()

14 .

When running a Normality Test, what would be the skew value of a 'normal data distribution'?

A)

2

B)

1

C)

-1

D)

0

Correct Answer : 0

15 .

When working with the csgraph modul, what is a correct method to find all connected components in a matrix?

A)

connections()

B)

connected_components()

C)

comp_connections()

D)

None of the above

Correct Answer : connected_components()

16 .

When working with significantance testing, the 'Alpha value' is best described as :

A)

The level of significance.

B)

The highest possible number.

C)

The distance from the lowest to the highest number.

D)

All of the above

Correct Answer : The level of significance.

17 .

What relation is consider between Eigen value (lambda), square matrix (A) and Eign vector(v)?

A)

Av != lambda*v

B)

Av =10 * lambda*v

C)

Av = lambda*v

D)

Av =Constant * lambda*v

Correct Answer : Av = lambda*v

Explanation :

We can find the Eigen values (lambda) and the corresponding Eigen vectors (v) of a square matrix (A) by considering the following relation.

18 .

The number of axes is called as _____.

A)

matrices

B)

object

C)

rank

D)

Vectors

Correct Answer : rank

Explanation : Dimensions are called as axes. The number of axes is called as rank.

19 .

Which explanation is correct for a 'Dense Array'?

A)

The values are sorted ascending

B)

Most of the values are not zero

C)

The values are all positive

D)

None of the above

Correct Answer : Most of the values are not zero

20 .

What is a correct syntax to return the number of 'not zero' values in an array?

A)

nozeros()

B)

nonzeros()

C)

no_zeros()

D)

count_nonzeros()

Correct Answer : count_nonzeros()

21 .

Which of the following code is used to whiten the data?

A)

data = whiten(data)

B)

data = data.whiten()

C)

data =SciPy.whiten(data)

D)

data = numpy.whiten(data)

Correct Answer : data = whiten(data)

22 .

What is the value of unit milli in SciPy?

A)

0.11

B)

0.1

C)

0.01

D)

0.001

Correct Answer : 0.001

23 .

There is a method in the spatial data module that is also known as 'Manhattan Distance', which one?

A)

blocks()

B)

block_distance()

C)

cityblock()

D)

None of the above

Correct Answer : cityblock()

24 .

When running a Normality Test, what does a negative skew mean?

A)

The data is skewed right

B)

The data is skewed left

C)

Both (a) and (b) are True

D)

Both (a) and (b) are False

Correct Answer : The data is skewed left

25 .

scipy.linalg always compiled with?

A)

BLAS/Linalg support

B)

BLAS/LAPACK support

C)

Linalg/LAPACK support

D)

None of the above

Correct Answer : BLAS/LAPACK support

Explanation : SciPy.linalg is always compiled with BLAS/LAPACK support, while for NumPy this is optional.

26 .

The scipy.linalg.solve feature solves the _______.

A)

linear equation

B)

integration problem

C)

differentiation problem

D)

All of the above

Correct Answer : linear equation

Explanation : The scipy.linalg.solve feature solves the linear equation a * x + b * y = Z, for the unknown x, y values.

27 .

When working with the csgraph modul, what is a correct method to find the shortest path in a graph from one element to another?

A)

ford()

B)

bellmann()

C)

dijkstra()

D)

All of the above

Correct Answer : dijkstra()

28 .

Which explanation is correct for a 'convex hull'?

A)

A convex hull is the smallest polygon that covers all of the given points.

B)

A convex hull is the smallest square that covers four given points.

C)

A convex hull is the smallest triangle that covers all of the given points.

D)

None of the above

Correct Answer : A convex hull is the smallest polygon that covers all of the given points.

29 .

When we are missing some data point, we often use interpolation to substitute the missing values, what is this technique called?

A)

amputation

B)

samputation

C)

adoptation

D)

imputation

Correct Answer : imputation

30 .

What is a correct method for exporting values in Matlab format?

A)

to_matlab()

B)

savemat()

C)

save_to_mat()

D)

None of the above

Correct Answer : savemat()

31 .

Which of the following methods is used when importing data from a Matlab format?

A)

matlab()

B)

loadmat()

C)

matlab.get()

D)

None of the above

Correct Answer : loadmat()

32 .

What is a correct syntax to return the mathematical number PI from the constants module, if the module is imported like this :

from scipy import constants

A)

PI

B)

constants.pi_int

C)

constants.pi

D)

All of the above

Correct Answer : constants.pi

33 .

What is a correct syntax to a list of all units under the constants module, if the module is imported like this:

from scipy import constants

A)

dir(constants)

B)

constants

C)

constants.list

D)

None of the above

Correct Answer : dir(constants)

34 .

What will be output for the following code?

import numpy as np
print np.linspace(1., 4., 6)

A)

array([ 1. , 1.6, 2.8, 3.4, 4. ])

B)

array([ 1. , 2.2, 2.8, 3.4, 4. ])

C)

array([ 1. , 1.6, 2.2, 2.8, 4. ])

D)

array([ 1. , 1.6, 2.2, 2.8, 3.4, 4. ])

Correct Answer : array([ 1. , 1.6, 2.2, 2.8, 3.4, 4. ])

35 .

What will be output for the following code?

from scipy import linalg
import numpy as np
a = np.array([[3, 2, 0], [1, -1, 0], [0, 5, 1]])
b = np.array([2, 4, -1])
x = linalg.solve(a, b)
print x

A)

array([ 2., -2.])

B)

array([ 2., -2., 9., 6.])

C)

array([ 2., -2., 9.])

D)

array([ 2., -2., 9., -9.])

Correct Answer : array([ 2., -2., 9.])

Explaination : The above program will generate the following output : array([ 2., -2., 9.])

36 .

What is a correct syntax to return the speed of sound (in meters per seconds), if the module is imported like this:

from scipy import constants

A)

constants.kmh

B)

constants.speed_of_sound

C)

constants.mph

D)

Correct Answer : constants.speed_of_sound

37 .

What will be output for the following code?

import numpy as np
print np.arange(7)

A)

[0, 1, 2, 3, 4, 5, 6]

B)

[[0, 1, 2, 3, 4, 5, 6]]

C)

array(0, 1, 2, 3, 4, 5, 6)

D)

array([0, 1, 2, 3, 4, 5, 6])

Correct Answer : array([0, 1, 2, 3, 4, 5, 6])

38 .

What will be output for the following code?

from scipy.special import logsumexp
import numpy as np
a = np.arange(10)
res = logsumexp(a)
print res

A)

9.45862974443

B)

9.46

C)

9.637

D)

10

Correct Answer : 9.45862974443

39 .

When working with constanst, what would be the result of the following:

constants.kilo

A)

1.0

B)

10.0

C)

100.0

D)

1000.0

Correct Answer : 1000.0

40 .

When working with constanst, what would be the result of the following:

constants.gram

A)

0.1

B)

0.01

C)

0.001

D)

All of the above

Correct Answer : 0.001

41 .

When working with constanst, what would be the result of the following:

constants.hour

A)

24.0

B)

3600.0

C)

12.0

D)

1.0

Correct Answer : 3600.0

42 .

What will be output for the following code?

from scipy import linalg
import numpy as np
A = np.array([[1,2],[3,4]])
x = linalg.det(A)
print x

A)

-2

B)

-1

C)

1

D)

2

Correct Answer : -2

43 .

Which of the following is false in SciPy?

A)

SciPy version might be faster depending on how NumPy was installed.

B)

scipy.linalg also has some other advanced functions that are not in numpy.linalg

C)

Both (a) and (b)

D)

None of the above

Correct Answer : Both (a) and (b)