Domain VI Operations & Maintenance

Question 1

Which of the following principles describes how MOST AC motors operate?
a. Resistance
b. Induction
c. Capacitance
d. Semiconduction

Answer 1

b. Induction

Question 2

As an automation professional, one of your training objectives is to teach the operator to successfully react to a process upset. What is the MOST effective method to achieve that goal is to:
a. Review the system alarm list
b. Review the control system logic with the operator
c. Provide a hands-on session in a virtual plant environment
d. Provide a copy of the Standard Operation Procedures Manual

Answer 2

c. Provide a hands-on session in a virtual plant environment

Question 3

Diagnostic software flags a controller as having high process variability when its output is hitting a low limit. What is the MOST probable cause?
a. Noisy measurement
b. Over-sized control valve
c. Under-sized control valve
d. Zero shift in the measurement

Answer 3

b. Over-sized control valve

Question 4

Which of the following is the BEST example of a predictive maintenance action?
a. Replacing devices after failure
b. Periodically shock testing devices
c. Calibrating devices on a scheduled basis
d. Analyzing devices based on noise, vibration, oil samples, and heat

Answer 4

d. Analyzing devices based on noise, vibration, oil samples, and heat

Question 5

Which of the following should be the basis for demonstrating peak performance in an operating unit?
a. optimize using an expert system
b. Review of process flow diagrams
c. Identify operator’s historical sweet spot
d. Review of cost sheets and historian data with operations

Answer 5

d. Review of cost sheets and historian data with operations

Question 6

Which of the following strategies can be used to optimize an interacting dead-time dominant process with multiple constraints?
a. Override PID control
b. Model predictive control
c. Decoupled PID control
d. Advisory control

Answer 6

b. Model predictive control

Question 7

The social styles of MOST people can be classified into four categories. Which social style category can be described as “extremely creative, has an intuitive understanding of the overall project and scope, and can create a lot of excitement and energy”?
a. Driver
b. Amiable
c. Expressive
d. Analytical

Answer 7

c. Expressive

Question 8

Which of the following principles can defeat a good change control system?
a. Changes are implemented as quickly as possible
b. Changes are implemented by trained personnel
c. Changes are carefully controlled and applied
d. Changes are carefully studied for their effects

Answer 8

a. Changes are implemented as quickly as possible

Question 9

Which of the following is the equation for availability?
a. A=(MTTF*MTTR)/MTTF
b. A=(MTTF+MTTR)/MTTF
c. A=MTBF/(MTBF+MTTR)
d. A=MTTF/(MTTF+MTTR)

Answer 9

d. A=MTTF/(MTTF+MTTR)