Power Engineering 4th Class Ch 123 final Questions with complete solution 2024/2025
6 views 0 purchase
Module
BOIE 8010
Institution
BOIE 8010
Power Engineering 4th Class Ch 123 final Questions with complete solution 2024/2025 Power Engineering 4th Class Ch 123 final
b - correct answer In the Lithium Bromide refrigeration system, what is the function of the concentrator (generator)?
Choose one answer.
a. To exchange heat between ...
power engineering 4th class ch 123 final questions
Written for
BOIE 8010
BOIE 8010
Seller
Follow
flyhigher329
Reviews received
Content preview
Power Engineering 4th Class Ch 123
final
b - correct answer ✔In the Lithium Bromide refrigeration system, what is the
function of the concentrator (generator)?
Choose one answer.
a. To exchange heat between the high temperature refrigerant vapour and
the atmosphere
b. To increase the absorbency potential of used absorbent
c. To speed up the evaporation of the refrigerant
d. To cool the concentrated absorbent
e. To cool the refrigerant vapour
b - correct answer ✔Most absorption refrigeration systems are put in place
where there is cheap excess or waste heat available. What is this heat
primarily used for?
Choose one answer.
a. To pressurize the system
b. To evaporate the water out of the weak Lithium Bromide
c. To decrease the evaporation point of the refrigerant
d. To maintain a minimum load on the system, during periods of low cooling
demand
e. To maintain the continuous vacuum
d - correct answer ✔Which of the following statements about Lithium
bromide absorption refrigeration systems is false?
Choose one answer.
a. Lithium bromide solution has the ability to absorb water vapour readily
, b. The system efficiency is increased by forcing water through a spray header
c. Evacuating the system lowers the boiling point of water
d. As water vapour is absorbed by lithium bromide, the vacuum in the
evaporator decreases
e. The operating cycle in the system is continuous
d - correct answer ✔In an Ammonia Absorption refrigeration system, what is
used as the absorbent?
Choose one answer.
a. Ammonia
b. Air
c. Lithium Bromide
d. Water
e. Freon
d - correct answer ✔In a Lithium Bromide refrigeration system, which of the
following is the refrigerant?
Choose one answer.
a. Lithium Bromide
b. Ammonia
c. Freon-22
d. Water
e. Strong aqua
c - correct answer ✔Ammonia systems are seldom used for air conditioning
purposes in large building mainly because ammonia:
Choose one answer.
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 flyhigher329. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £11.43. You're not tied to anything after your purchase.
