grade 12 Chapter No 4

How many loops are there in C++

• 2

• 3

• 4

• 1

What is currect syntax of for loop?

• for(initialization;condition; increment/decrement)

• for(increment/decrement; initialization; condition)

• for(initialization, condition, increment/decrement

• None of These

Can a for loop contain another for loop?

• No

• Yes

• Compilation Error

• Runtime Error

Which looping process checks the test condition at the end of the loop?

• for

• while

• do-while

• no looping process checks the test condition at the end

The statement i++; is equivalent to

• i = i + i;

• i = i + 1;

• i = i - 1;

• i --;

Which looping process is best used when the number of iterations is known?

• for

• while

• do-while

• all looping processes require that the iterations be known

What's wrong? for (int k = 2, k <=12, k++)

• the increment should always be ++k

• the variable must always be the letter i when using a for loop

• there should be a semicolon at the end of the statement

• the commas should be semicolons

If there is more than one statement in the block of a for loop, which of the following must be placed at the beginning and the ending of the loop block?

• parentheses ( )

• braces { }

• brackets [ ]

• arrows < >

The statements in the body of a while loop may never be executed while the statements in the body of a do-while loop will be executed

• at least once

• at least twice

• never

• as many times as the user wishes

If you want a user to enter exactly 20 values, which loop would be the best to use?

• while

• switch

• do-while

• for