Python - Test Yourself4

What does function subroutine do?

def subroutine(n):

  while n > 0:

      print (n,)

      n -= 1

Select one:

 a. Counts from 10
down to 0 and displays each number

 b. Counts from n down
to 1 and displays each number 

 c. Calculates the sum
of n numbers greater than 0

 d. Calculates the
mean of n

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What output will the following code produce?

def area(l, w):

    temp = l * w;

    return temp

l = 4.0

w = 3.25

x = area(l, w)

if ( x ):

  print (x)

Select one:

 a. 13.0 

 b. 0

 c. Expression does
not evaluate to boolean true

 d. 13

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Repeated execution of a set of programming statements is
called repetitive execution.

Select one:

 True

 False  

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A stack diagram shows the value of each variable and the
function to which each variable belongs.

Select one:

 True 

 False

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The following code is an example of what principle?

bruce = 5

print (bruce,)

bruce = 7

print (bruce)

Select one:

 a. Multiple
assignment 

 b. An Iteration or
loop structure

 c. A logical operator

 d. A conditional
expression

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What does function subroutine do?

def subroutine(n):

  while n > 0:

      print (n,)

      n -= 1

Select one:

 a. Counts from 10
down to 0 and displays each number

 b. Counts from n down
to 1 and displays each number 

 c. Calculates the sum
of n numbers greater than 0

 d. Calculates the
mean of n

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Expressions evaluate to either true or false.  What will the output of the following code be
when the  expression (Ni!) is evaluated?

if "Ni!":

    print ('We are the
Knights who say, "Ni!"')

else:

    print ("Stop
it! No more of this!")

Select one:

 a. Stop it!

 b. We are the Knights
who say, "Ni! 

 c. Stop it! No more
of this!"

 d. No output will be
produced

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What will the output of the following code be?

def recursive( depth ):

    depth+=1

    while (depth <
5):

        ret =
recursive(depth)

    return depth

ret = recursive( 0 )

print ("the recursive depth is ", ret)

Select one:

 a. the recursive
depth is 5

 b. the recursive
depth is 4

 c. Error due to depth
of recursive calls

 d. None  

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Encapsulation is the process of wrapping a piece of code in
a function

Select one:

 True 

 False

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What output will the following python commands produce:

x=1

y=2

if x == y:

    print (x,
"and", y, "are equal")

else:

    if x < y:

        print (x,
"is less than", y)

    else:

        print (x,
"is greater than", y)

Select one:

 a. 1 and 2 are equal

 b. 1 is less than
2 

 c. 1 is greater than
2

 d. 2 is greater than
1

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