CSSBB Free Practice Test

- (Topic 2)
One of the approaches used by TRIZ is referred to as “removing the contradiction.” A project team is asked to determine how many coats of paint should be applied to a panel. In this case the contradiction is:

1. A. additional coats cost money but give a better finish
2. B. the customer wants an excellent finish at a low cost
3. C. the company wants to reduce costs but have an excellent finish

Correct Answer: A

- (Topic 2)
Calculate the main effect of factor A:

1. A. 20
2. B. 25
3. C. 30
4. D. 40
5. E. none of the above

Correct Answer: A

A factorial experiment can be analyzed using ANOVA or regression analysis[ citation needed]. It is relatively easy to estimate the main effect for a factor. To compute the main effect of a factor "A", subtract the average response of all experimental runs for which A was at its low (or first) level from the average response of all experimental runs for which A was at its high (or second) level.

- (Topic 1)

This table displays the inventory of fasteners in a storage cabinet. An item is selected at random from the fastener cabinet. Find the approximate probability it is larger than 1/2.

1. A. .35
2. B. .65
3. C. .1106
4. D. .47
5. E. none of the above

Correct Answer: B

- (Topic 2)
This QFD matrix was used in the design process for a ball point pen. What symbol is appropriate for the square labeled 4?

A.
B.
C.

1. A. none of the above

Correct Answer: B

- (Topic 1)
A pharmaceutical manufacturer is designing an experiment to test four different capsule ingredients designed to reduce dissolution time. Each ingredient will be tested at 10 milligrams and 40 milligrams. A full factorial design is used with five replications per run. The number of levels, factors and runs is, respectively:

1. A. 2, 4, 16
2. B. 4, 5, 8
3. C. 10, 4, 40
4. D. 2, 20, 16

Correct Answer: A