Question

Question 1

The code used to output messages to the screen begins with

run

#

print

output

Flag this Question

Question 2

The code used to begin a comment in the Python program source code is

#

Hello

*

Comment

Flag this Question

Question 3

A variable name is like a(n)

input typed on a keyboard

address in computer memory where values can be stored

output to a computer screen

value assigned to an address in computer memory

Flag this Question

Question 4

It does not matter whether the print statement is written in lowercase or uppercase in Python program source code.

True

False

Flag this Question

Question 5

It is important that each # sign is fully left justified in the Python program source code

True

False

Flag this Question

Question 6

The code used to begin a statement requiring the user to type text in response to a prompt is

input

variable

echo

prompt

Flag this Question

Question 7

A prompt is a message displayed on the screen to tell the user what input is expected.

True

False

Flag this Question

Question 8

The parentheses around the prompt in an input statement are optional.

True

False

Flag this Question

Question 9

Print statements can include text strings and variables separated by commas.

True

False

Flag this Question

Question 10

In Python programming, concatenation means

spacing

joining

adding

rounding

Flag this Question

Question 11

One reason to concatenate variables containing text is that it allows you to control the spacing in output.

True

False

Flag this Question

Question 12

The symbol used to code concatenation is

*

%

#

+

Flag this Question

Question 13

In Python, the default condition is for input to be read as text.

True

False

Flag this Question

Question 14

a = input("Enter a number: ")

b = input("Enter a number: ")

If two numbers, 1 and 2, are input from the keyboard as values for variables a and b, respectively, in the input statements above, the output of the statement print (a + b) is

3.0

an error message because you can't add numbers as text

12

1+2

Flag this Question

Question 15

a = input("Enter a number: ")

b = input("Enter a number: ")

In order for the output of the statement print (a + b) to be the sum of a and b, the input statements for a and b shown above would have to be enclosed by which function?

sum()

float()

join()

str()

Flag this Question

Question 16

Which of the following statements will NOT cause a syntax error when you attempt to compile your program?

a = float(input("Please enter a number:"))

a = float(input("Please enter a number:")

a = float(input('Please enter a number:"))

a = float(input("Please enter a number":))

Flag this Question

Question 17

The symbol for multiplication in Python is

*

x

.

/

Flag this Question

Question 18

Which of the following statements will allow the output of the value of a computed variable named average to be rounded to two decimal places?

average = '%.2f' % average

average = '%2.f' % average

average = '%.2f' average

average = '.2f' % average

Flag this Question

Question 19

It makes no difference whether a sum used to calculate an average is stored as text or stored as a number.

True

False

Flag this Question

Question 20

After the following calculation, average = 1 + 5 / 5, the output displayed by the statement print(average) would be

depends on whether the value of average was stored as a number or as text

2.0

3.0

1.2

Answer 1

Following are the answers to the first 10 questions with explanation and output.

1. The code used to output messages to the screen begins with ?
Ans: print.
The "print()" function is used to display messages on the computer screen.

2. The code used to begin a comment in the Python program source code is ?
Ans:#.

All the Strings which contain "#" as prefix are considerd as comments and are ignored by the compilers/ interpreters.

3. A variable name is like a(n) ?
Ans: address in computer memory where values can be stored.
Also variable names are basically the names you give to computer memory locations    which are used to store values in a computer program.

4. It does not matter whether the print statement is written in lowercase or uppercase in Python program source code.
Ans: False.

It is necessary to follow the syntax of the programming language, if not error will be thrown.

5. It is important that each # sign is fully left justified in the Python program source code ?
Ans: True
If we put a # in middle of a string then the string followed by the # will be considered as a comment, hence if we want to make valid comments we must put the # sign to the extreme left. i.e the first character of the string needs to be a # for it to qualify as valid comment.

6. The code used to begin a statement requiring the user to type text in response to a prompt is ?
Ans: input.
"input()" is the function used to take input from the user.

7. A prompt is a message displayed on the screen to tell the user what input is expected.
Ans: True.
Using print() we can prompt the user to take actions.

8. The parentheses around the prompt in an input statement are optional.
Ans: True.
If we are using python2.x then this is True, but for python3.x it is necessary to include the parantheses around prompt.

9. Print statements can include text strings and variables separated by commas.
Ans: True.
It is completely valid for print statements can include text strings and variables separated by commas. This helps in clear and correctly formmated output.

10. In Python programming, concatenation means ?
Ans: joining.
In the Given example below the variable s1 contains "Hello" and variable s2 contains "World" in the third line we join/combine these two and assign it to a third variable s3 which then becomes "HelloWorld". This process is called concatenation.

Do leave a thumbs up if this was helpful. Feel free to ask doubts regarding the above given solution in the comments section below.