Practice Quiz: Chapter 14

* not completed

. Which of the following is a "capacity" of a bridge to withstand "demand"?

a) The weight of vehicles traveling on the bridge correct incorrect

b) The load limit of the bridge correct incorrect

c) The force exerted on the bridge by wind correct incorrect

d) All of the above correct incorrect

* not completed

. Which of the following an appropriate approach to address failure?

a) Identify all possible modes of failure correct incorrect

b) Making sure that the system will not fail under any likely scenario correct incorrect

c) Ensuring that if a failure does occur, the consequences will be limited correct incorrect

d) All of the above correct incorrect

* not completed

. Based on Table 14.3 on p. 254, what is a potential solution to address the failure of the control centre losing power?

a) Reducing ore transport correct incorrect

b) Providing additional power to the control centre correct incorrect

c) Adding an emergency generator to the design correct incorrect

d) All of the above correct incorrect

* not completed

. Based on Figure 14.3 on p. 256, which of following would cause slurry to spill in the pipeline project?

a) Thinning of the pipeline wall correct incorrect

b) Pressure pulse correct incorrect

c) Pressure pulse occurring after the thinning of the pipeline wall correct incorrect

d) All of the above correct incorrect

* not completed

. Which of the following can lead to uncertainty in the capacity of an engineered system?

a) Variation in the quality of materials used correct incorrect

b) Variation in the quality of workmanship during construction correct incorrect

c) Variation in how the engineering system degrade over time correct incorrect

d) All of the above correct incorrect

* not completed

. Elevators are typically designed to break if the cable holding the elevator cart loses tension due to breakage. What kind of failure control is this design?

a) Redundancy correct incorrect

b) Failsafe correct incorrect

c) Progressive failure correct incorrect

d) Weak link correct incorrect

* not completed

. The operators of new equipment are often trained to respond in certain ways to equipment failures. What kind of failure control is this design?

a) Redundancy correct incorrect

b) Failsafe correct incorrect

c) Operational safeguard correct incorrect

d) Weak link correct incorrect

* not completed

. What does the textbook illustrates in this chapter using the catastrophic accident at Union Carbide?

a) The importance of building redundancy in the system correct incorrect

b) Failsafe is not reliable correct incorrect

c) Operational safeguard is not always reliable, even when the potential consequence of failure is severe correct incorrect

d) All of the above correct incorrect

* not completed

. What is the weakness of FMEA that is addressed by FTA?

a) FMEA does not consider failures due to event chains sourced in multiple components correct incorrect

b) Engineers may not take FMEA seriously correct incorrect

c) FMEA does not assess potential failure modes as systematically as FTA correct incorrect

d) All of the above correct incorrect

* not completed

. Which of the following is considered in determining safety factors?

a) Relevant codes and regulations correct incorrect

b) Severity of the consequences correct incorrect

c) Cost of increasing safety factor correct incorrect

d) All of the above correct incorrect

* not completed

. There is always a practical way to incorporate a failsafe in your design.

a) True correct incorrect

b) False correct incorrect

* not completed

. When consequences of failures are severe, people are more alert, therefore more reliable to deal with failures appropriately.

a) True correct incorrect

b) False correct incorrect

* not completed

. The failure of system A has severe consequences. The failure of system B has moderate consequences. If everything else is equal, the design of system A should use a higher factor of safety than system B.

a) True correct incorrect

b) False correct incorrect

* not completed

. Through our diligence in preparation and design, we can ensure that our system will never fail.

a) True correct incorrect

b) False correct incorrect

* not completed

. Redundancy is a more effective approach to control failure than operational safeguards because people are less reliable than machines.

a) True correct incorrect

b) False correct incorrect