Exam (elaborations)
EPRI A EXAM 3 – QUESTIONS WITH CORRECT ANSWERS
- Course
- Institution
EPRI A EXAM 3 – QUESTIONS WITH CORRECT ANSWERS
[Show more]
Seller
Follow
Studycafe
Reviews received
Content preview
EPRI A EXAM 3 – QUESTIONS WITH CORRECT ANSWERSThermistors Correct Ans - temperature transducers constructed
from semiconductor material
Optical pyrometers can measure blank to determine the temperature of a
hot surface Correct Ans - infrared radiation
a temperature sensing element that provides temperature information in
the form of a change in the resistance of the metal wire element, often
platinum, as a function of temperature Correct Ans - RTD
Which of the following applies to an RTD Correct Ans - operation is
based on direct relationship between the electrical resistance in Milli
voltage
as a speed velocity of a fluid increases through a restriction, the static
pressure blank Correct Ans - decreases
the output of a Target flow meter is proportional to Correct Ans -
the square root of volumetric flow rate
because flow rate is the square root of the pressure drop across a
restriction, it is usually necessary to extract the square root linearize the
output of an orifice meter when Correct Ans - a square root
extractor is in the loop
rotor speed in a turbine meter is proportional to Correct Ans - fluid
flow rate
which dimension of an orifice plate is most critical Correct Ans -
the
an open Channel flow measurement device often used to measure the flow
of Wastewater in a ditch or Canal from an industrial site is Correct Ans
- weir
, to change the 4 to 20 milliamp analog signal from a transmitter to the
signal required by a digital controller a blank must be part of the
instrument single Loop Correct Ans - a\d converter
a Pneumatic valve without a positioner is the final control element in an
instrument Loop the transmitter in the controller are both electronic in
order for this control system to operate, a must be installed any
instruments signal line between the controller and the control valve
Correct Ans - i/p transducer
which of the following instrument transmission signals would be least
affected by a lightning storm Correct Ans - fiber optics
which of the following instrument transmission signals usually has the
most dead band in the slowest response when in the transmitters located
thousand feet or more from the receiving instrument Correct Ans -
pneumatic
transmitters output must be adjusted to the blank of the measured variable
Correct Ans - range
transmitter gain should be blank over its entire range Correct Ans -
constant
the zero output from a Pneumatic transmitter is normally 3 PSI the zero
output from an electronic transmitter is normally for milliamps these
instruments have a live 0 Correct Ans - to ensure accurate zero
adjustment
when calibrating a mechanical link are lever instrument such as a pressure
gauge which adjustment is usually made first Correct Ans - span
which of the following is usually adjusted first when calibrating an
electronic pressure transmitter Correct Ans - zero
the pressure switch normally produces a Correct Ans - discrete
output
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 or Stuvia-credit 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 $10.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
74534 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now