Certified Automation Professional (CAP) Exam Questions
The method by which the tasks and hazards associated with a machine or process are analyzed is known as:
A. Risk assessment.
B. Machine assessment.
C. Risk reduction.
D. Risk abatement.
To test controller tuning or prototype new control strategies offline, the model should be a(an):
A. Tie-back (loopback) simulation.
B. Artificial neural network.
C. Dynamic process simulation.
D. Steady state process simulation.
The temperature measurement with the BEST repeatability and resolution is the:
B. Resistance temperature detector (RTD).
C. Dial thermometer.
D. Capillary system.
Which of the following is NOT a variable speed drive setup parameter?
A. Acceleration rate.
B. Motor winding type.
C. Output frequency.
D. Maximum speed.
A complete test plan for system integration testing MUST include:
A. Comments for the application programmer.
B. Multiple test cases for each mode of operation.
C. At least five test cases for each test.
D. Expected results for each test case.
Frequency of maintenance should be determined by:
A. Failure rates of components.
B. Availability of personnel and parts.
C. Management targets for efficiency and productivity.
D. Effectiveness of maintenance personnel.
Using Modbus, what is the MAXIMUM level of precision available?
How is PID defined in the phrase “PID control loop”?
Proportional Integral Derivative.
When developing HMI (human-machine interface) screens, it is recommended the quantity of items an operator has to remember is less than:
The average person cannot respond to signals more frequent than one every:
The graphic display for a distillation column in a refining train would BEST fit in the HMI Display hierarchy at which level?
What ISA RP12.4 (NFPA 496) defined type of pressurization system will reduce the classification within an enclosure from Division 1 to nonhazardous?
Given the following diagram what is the transfer function for C(s)/R(s)
To MINIMIZE the effect of feed upsets to the top of a distillation column, the flow feed forward signal should be connected to a tray temperature controller output that then directly manipulates a(n):
What is the MOST appropriate technique for modeling linear relationships for a large number of correlated inputs where the equations are unknown?
Multivariable statistical process controls
What is the recommended limitation in meters for the length of a “fast Ethernet” (100 Megabits/second) segment on twisted pair cable?
According to NFPA (National Fire Protection Association) Electrical Standards for Industrial Machinery, which of the following actions is NOT acceptable for emergency operations?
Resetting an emergency stop circuit to initiate a restart
MOST initial project budgetary cost estimates have an acceptable margin of error of plus or minus:
Which of the following standards applies to the development of embedded software for a SIL 3 certified safety system?
Which of the following protection techniques is acceptable for equipment located in a Class I, Division 1 area?
Explosion-proof apparatus and intrinsic safety
Which of the following control valve body styles is MOST likely to develop blockage in a paper pulp slurry service?
Given R= Ρ L/A What is the resistance of 1,000 ft of copper wire (specific resistance = 10.37) given a cross-sectional area of 10370 cmil and a wire temperature of 20°C?
An application includes a VFD that implements a V/Hz method of torque control while maintaining a fixed V/Hz ratio. The motor has a nameplate rating of 460 volts and 60Hz. If the drive is operating at 30Hz, what percent of rated torque will the motor MOST likely develop?
If diagnostic software flags a controller as having high process variability when its output is hitting a low limit, the MOST probable cause is a(n):
Oversized control valve
Which of the following MUST be performed to reveal a normally undetected fault in a safety system?
The peak performance demonstrated in an operating unit should be based on a(n):
Review of cost sheets and historian data with operations
To simultaneously optimize an interacting dead-time dominant process with multiple constraints, one should use a (n):
Model predictive control
Which of the following control strategies works to measure disturbances and compensate for them before they cause the controlled variable to deviate from the set point?
Gathering requirements is critical to the success of an automation project because they:
Define the purpose, scope, and objectives.
Which of the following is NOT a benefit of using an agenda for discussions?
An agenda allows everyone equal participation
What is required to find the MOST efficient operating points that are highly dependent on complex shifting process conditions, such as equipment fouling?
Real-time optimization with a detailed process model
Which of the following contract types places the PRIMARY risk with the supplier?
If you need an enclosure that resists corrosion and provides protection for outdoor use, dust, and hose-directed water, which type of enclosure would you select?
Type 4x (NEMA 4x)
According to the NFPA 79, the standard wire colors for line voltage, AC control currents, DC control circuits, and interlock circuits are respectively shown as:
Black, Red, Blue, Yellow
Using Modbus, what is the MAXIMUM level of precision available?
Which fuse has the quickest response to over currents?
Considering a 60 Hz power source, at what speed does a four-pole synchronous motor run?
When a large automation project makes significant changes to plant operations, it is BEST to perform operator training:
After acceptance testing and prior to the startup phase
If an exothermic reactor can run-away in manual, then the temperature controller should be tuned with a(n):
An increase in which setting can compensate for a thermowell lag time?
A Bill of Materials for purchase of cable on a project is created by completing a material:
If the distance in a sheet line from the thickness gauge to the manipulated diebolt actuators is 200 meters and the speed is 4 meters per second, then the dead time from the transportation delay for thickness control is __50___ seconds.
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Most AC motors operate on the principle of:
To minimize electrical interference when AC power and DC signal wiring meet in a control panel, it is BEST to:
Cross the wires at 90 degrees.
In a motion control application, which of the following signal types would be able to indicate both direction and velocity?
Which of the following statements about fuzzy logic controllers is true?
A fuzzy logic controller is tuned by adjusting the scale factors
A Markov model is used to determine successful system operation as a function of operating time interval. The resulting computation indicates system
What is the uptime for this automation system if it runs 24 hours a day, 365 days a year?
A control circuit within Field Control Panel #1 (FCP-1) in your facility is malfunctioning, and you must initiate a work order to have a technician troubleshoot the circuit. FCP-1 contains a PLC, terminal blocks, circuit breakers and fuses, and various other control equipment, of which none exceeds 120vac. The technician will be working on energized electrical conductors and circuit parts and performing voltage testing on the live circuits. On the work order, you will be required to state under which NFPA 70E-2009Standard for Electrical Safety in the WorkplaceHazard/Risk Category this work activity falls.
Per NFPA 70E-2009 Standard for Electrical Safety in the Workplace, what Hazard/Risk Category should be defined for the above task?
Hazard/Risk Category 1
Common terms used to quantify dangerous failures include which of the following?
probability of failure on demand (PFD), risk reduction factor (RRF), and safety availability (SA)
What is the primary pitfall in using this ROI ratio to make a decision as to whether or not to invest in an automation project?
It ignores the time value of money.
Cavitation occurs in liquid flow when:
fluid pressure drops below the liquid’s vapor pressure, and the vapor pressure is below the outlet pressure
Which of the following statements describes a database record?
A Single row of information in a table
Which of the following is not part of receipt verification?
Comparison of loop checks to loop diagrams
Which type of communications error protection and correction uses a complex polynomial that results in a frame check sequence being added to a message?
cyclic redundancy check
Translation of data between a networking service and an application, including character encoding, data compression, and encryption/decryption” is the responsibility of which layer of the open system interconnection (OSI) model?
Which of the following security risks is LEAST likely to disrupt operations at a geothermal power plant and result in an emergency situation?
Which of the following statements describes an advantage of a self-study workbook for operator training?
Provides all participants with a common baseline of knowledge
What is the significance of the field bus intrinsic safety concept (FISCO)?
It simplifies the rules governing energy storage in field cables and makes more power available to the field bus trunk
A final report on a highly visible automation project will be distributed to senior leaders and several operations managers. In preparing this report, an engineer would be well served to:
“include an executive summary, and, as appropriate, use bulleted lists in the narrative
Which statement accurately characterizes both the NPV and IRR methods for evaluating automation system capital investments?:
They both adjust cash flows over time for the time value of money
The definition of ALARM includes which of the elements?
Operator Action is required.
A two-wire loop with a loop power supply of 26 V has a 200-ohm load resistor and a 50-ohm loop resistance. If the maximum current in the loop is 20 mA, what is the voltage drop and how much voltage will be across the transmitter at 20 mA?
5 V drop and 21 V across the transmitter at 20 mA
A project manager prepares a work breakdown structure (WBS) identifying each major task and related subtasks required to fulfill the project objective. Subtasks are further reduced into units and subunits with associated cost projects and assigned responsibilities. This activity occurs during which phase of a project’s life cycle in the ISA CAP program’s model?
Reference : ISA CAP Exam
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