Exam (elaborations)
Study Prep For EPRI Test – Questions & Verified Answers
- Module
- Institution
Study Prep For EPRI Test – Questions & Verified Answers
[Show more]
Seller
Follow
Studycafe
Reviews received
Content preview
Study Prep For EPRI Test – Questions & VerifiedAnswers
~Describe general electrical/electronic theories.
~Comprehend workplace safety processes.
~Calculate electrical/electronic circuit performance (Ohm's Law).
~Identify electrical/electronic symbols.
~Discuss Lockout-Tagout procedures.
What is the maximum allowed deviation (in mADC) for a device that has an
accuracy requirement of 0.5% and an output span of 16 mADC? Correct
Ans - 0.08 mADC
Deviation=Span X (Accuracy/100)
What procedure should be enacted before working on an electrical or
pneumatic system? Correct Ans - Lockout/Tagout
What is the total resistance of a parallel circuit with resistances of 25, 35,
and 45 ohms? Correct Ans - 11 ohms
Who is authorized to remove each lock and tag applied? Correct Ans -
Only the technician who applied the lock
What should an instrument technician evaluate before opening a process
line? Correct Ans - The SDSs for the chemicals in the line
What is the proper ratio of rise to run for an extension ladder? Correct
Ans - 4:1
Find the volume of a tank with a diameter of 12 feet and a height of 37 feet.
Correct Ans - 4,183.8 cu. ft.
V = (3.14) (R^2) (H)
Find the DC voltage drop across a 250-ohm resistor with a current of 16
milliamperes DC. Correct Ans - 4 VDC
E=IxR
Convert 4,500 cubic feet to gallons. Correct Ans - 33,662.25 gallons
,Gallons = (CuFt) (7.48)
What does not determine the severity of an electrical shock? Correct
Ans - Temperature
This vocabulary term is defined as "a system in which deliberate guidance
or manipulation is used to achieve a prescribed value or variable."
Correct Ans - Control System
Where in the physical process would a primary element be located?
Correct Ans - In contact with the process
Automatic control systems relieve the operator of the responsibility to
maintain a process.
True or False? Correct Ans - True
Process variables in a system requiring control include which of the
following?
Density
Flow
Specific Gravity
Volume Correct Ans - Flow
How are inputs and outputs typically connected to the controller in a
process system? Correct Ans - Twisted-pair wiring
What type of signal is represented by a packet of information containing a
series of discrete bits? Correct Ans - Digital
What type of signal can be used as inputs to record a range of values and as
outputs to position a final control element? Correct Ans - Analog
What is a Process? Correct Ans - A system being measured and
controlled.
A control valve is considered to be which element in a process? Correct
Ans - Final control element
, A control loop that uses float switches to turn a pump on and off is referred
to as which type of control? Correct Ans - Discrete
What do symbols portrayed on diagrams and drawings depict? Correct
Ans - Instruments
What is the name of the unique identification code for devices shown on
instrumentation drawings and diagrams? Correct Ans - Tag number
What is a device that is identified as TT 1004? Correct Ans -
Temperature transmitter 1004
What is a device that is identified as PSL 2345? Correct Ans -
Pressure switch low 2345
What does the tag number LAL 1003 represent? Correct Ans - Level
alarm low
What type of drawing shows all related (loop number) devices for
controlling means and the wiring path, termination point, and device
locations? Correct Ans - Loop Sheet
What time of document indicates the specifics for which device is ordered
and the type of conditions under which is must perform? Correct Ans -
Spec Sheet
How are devices that are hidden from the operator's view indicated?
Correct Ans - Series of dashed lines within the tag number
A control valve that fails in position and does not move can be indicated
with a graphic symbol or which letters? Correct Ans - FL (Fail Last)
A relatively quick way to determine the quantity of a specific type of device
needed on a project would be to consult which documentation? Correct
Ans - Instrument index sheets
What is the accuracy of a transmitter that has a maximum deviation of 0.18
milliampere and an output span of 16 mADC? Correct Ans - 1.13%
Accuracy=(MaxDev/Span) X 100
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Studycafe. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £14.69. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now