Comp Sci Quiz #6

Assume that the Boolean variable hot is assigned the value true and the Boolean variable humid is assigned the value false. Which of the following will display the value true ?

Select two answers.

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Directions: The question or incomplete statement below is followed by four suggested answers or completions. Select the one that is best in each case.

The ticket prices at a movie theater are given below.

A programmer is creating an algorithm to set the value of ticketPrice based on the information in the table. The programmer uses the integer  variable age  for the age of the moviegoer. The Boolean variable  is3D is true  when the movie is 3-D and false otherwise.

Which of the following code segments correctly sets the value of  ticketPrice?

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The cost of a customer’s electricity bill is based on the number of units of electricity the customer uses.

• For the first 25 units of electricity, the cost is $5 per unit.

• For units of electricity after the first 25, the cost is $7 per unit.

Which of the following code segments correctly sets the value of the variable cost to the cost, in dollars, of using numUnits units of electricity?

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Consider the following code segment.

What is the value of sum after the code segment is executed?

• 12

• 14

• 16

• 18

In a certain video game, players are awarded bonus points at the end of a level based on the value of the integer variable timer. The bonus points are awarded as follows.

• If timer is less than 30, then 500 bonus points are awarded.

• If timer is between 30 and 60 inclusive, then 1000 bonus points are awarded.

• If timer is greater than 60, then 1500 bonus points are awarded.

Which of the following code segments assigns the correct number of bonus points to bonus for all possible values of timer ?

Select two answers.

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Assume that the Boolean variable x is assigned the value true and the Boolean variable y is assigned the value false. Which of the following will display the value true ?

Select two answers.

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In a certain video game, the variable maxPS represents the maximum possible score a player can earn. The maximum possible score depends on the time it takes the player to complete the game. The value of maxPS should be 30 if time is greater than 120 and 50 otherwise.

Which of the following code segments correctly sets the value of maxPS based on the value of time ?

Select two answers.

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In the following statement, val1, val2, and result are Boolean variables.

Which of the following code segments produce the same result as the statement above for all possible values of val1 and val2 ?

Select two answers.

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Consider the following code segment.

If the value of x is 3 and the value of y is 5, what is displayed as a result of executing the code segment?

• -2

• 2

• 8

• Nothing will be displayed.

The following code segment is intended to set max equal to the maximum value among the integer variables x, y, and z. The code segment does not work as intended in all cases.

Which of the following initial values for x, y, and z can be used to show that the code segment does not work as intended?

• x = 1, y = 2, z = 3

• x = 1, y = 3, z = 2

• x = 2, y = 3, z = 1

• x = 3, y = 2, z = 1