Week 7 Flashcards
Which of the following is NOT defined by the ANSI/ISA-88.01-1995 (S88) standard?
a. Hierarchical models for virtually any batch process
b. Standard terminology applicable only to batch control
c. Internally consistent set of principles
d. General and site recipe models and representation
b. Standard terminology applicable only to batch control
Which of the following is the International Electrotechnical Commission’s (IEC’s)
equivalent of ANSI/ISA-88.01-1995(S88)?
a. IEC 60519-1
b. IEC 61131-1
c. IEC 61131-3
d. IEC 61512-1
d. IEC 61512-1
Which of the following is the PRIMARY reason a company might choose batch
control over traditional continuous process control?
a. To precisely predict material requirements
b. To control the procedure
c. To maximize productivity
d. To optimize the costs
d. A fuzzy logic controller cannot replace a PID controller unless the fuzzy
controller is linear.
b. To control the procedure
Which of the following is true of ANSI/ISA-88.01-1995 (S88) standard principles?
a. Recipe information should be integral to the sequential controls for the
equipment.
b. A recipe contains all of the equipment in a process, but a process cell directs
units.
c. Control is an automated function, and manual processes should not be
included.
d. A process consists of modules that can do many non-product-specific tasks.
d. A process consists of modules that can do many non-product-specific tasks.
Which of the following is true of the modules described within ANSI/ISA-88.01-1995
(S88)?
a. A unit can have multiple batches in multiple phases at one time.
b. Control modules and equipment modules are the level of detail with which the
recipe concerns itself.
c. A process cell need not have any units.
d. Each batch in a process cell may follow different paths through the equipment.
d. Each batch in a process cell may follow different paths through the equipment.
Which of the following has its own phases and may be a permanent part of a unit or a
common resource temporarily attached to a unit?
a. Procedure module
b. Control module
c. Equipment module
d. Process cell
c. Equipment module
Which of the following explains why ANSI/ISA-88.01-1995 (S88) treats control
modules as a separate entity?
a. A control module is inextricable from its equipment.
b. Each control module is encapsulated so it can be reused.
c. Each control module has a phase and directs a set of final control elements.
d. A control module is partitioned to prevent the phase from commanding other
b. Each control module is encapsulated so it can be reused.
Regarding ANSI/ISA-88.01-1995 (S88) and ANSI/ISA-95.00.01-2000 (S95), why is a
precise definition of requirements for batch control significantly more important than
traditional functional specifications for continuous control?
a. The S88 holistic process standard supplants traditional control, which allowed
isolated control of equipment/process variables; S95 supplants traditional
make-to-stock methodology.
b. Traditional specifications allowed isolated control of equipment/process
variables, while S88 defines holistic processes and S95 links them to business
requirements.
c. Traditional specifications allowed holistic control of equipment/process
variables, while S88 defines isolated batch control and S95 links them to
business requirements.
d. The S88 standard supplants traditional control, which focused on how to make
a product; S95 focuses on what to make.
b. Traditional specifications allowed isolated control of equipment/process
variables, while S88 defines holistic processes and S95 links them to business
requirements.
An engineer at plant number 5 has further modified a recipe to include the actual lots
of pigment and other chemicals to be used in paint batch 5445332. Which of the
following types is this recipe?
a. Site recipe
b. Master recipe
c. Control recipe
d. General recipe
c. Control recipe
Which of the following correctly indicates the importance of the recipe and why it
provides flexibility in the manufacture of batch products?
a. The procedural control model is unified so that all of the procedure is in the
recipe and none is in the units.
b. A schedule becomes a vital part of control by directing the order of recipes that
are completely separate from the control code.
c. The control recipe is written by a control engineer to keep a recipe from risking
damage to equipment by being poorly written.
d. Control code and control recipe are inextricably linked to provide batch-specific
control at the specific plant and device level.
b. A schedule becomes a vital part of control by directing the order of recipes that
are completely separate from the control code.
Which of the following places the steps of the procedure model in the correct order?
a. Procedure, unit procedure, phase, operation
b. Unit procedure, procedure, operation, phase
c. Unit procedure, procedure, phase, operation
d. Procedure, unit procedure, operation, phase
d. Procedure, unit procedure, operation, phase
Which of the following correctly states the relationship between procedural control
and equipment control?
a. Procedural control is embedded in equipment control; equipment control
carries out process-oriented tasks and an equipment entity simply initiates the
tasks.
b. Procedural control is embedded in equipment control; equipment control
carries out process-oriented tasks and a recipe simply initiates the tasks.
c. Equipment control is embedded in procedural control; equipment control
carries out process-oriented tasks and a recipe simply initiates the tasks.
d. Equipment control is embedded in procedural control; procedural control
carries out equipment-oriented tasks and an equipment entity simply initiates
the tasks.
b. Procedural control is embedded in equipment control; equipment control
carries out process-oriented tasks and a recipe simply initiates the tasks.
Which of the following is the MOST common place for linkage between productindependent procedures for units and product-dependent procedures in the
recipes?
a. Procedure level
b. Operation level
c. Unit procedure level
d. Phase level
d. Phase level
Which of the following is the first step in designing batch automation for a plant?
a. Focusing on control loops, valves, and other equipment control specifics
b. Conducting a highly detailed study of required functionality and business
requirements
c. Setting procedures, unit procedures, and operations for the entire plant
d. Completing a broad overview of required functionality and business
requirements
b. Conducting a highly detailed study of required functionality and business
requirements
Preferring to err on the side of safety, engineers at a plant have set aggressive
alarm trip points and configured a high percentage of alarms as high priority. This
scenario is MOST likely to lead to excessive levels of
a. stale alarms.
b. nuisance alarms.
c. alarm clarity problems.
d. alarm floods.
b. nuisance alarms.