The standby header is provide a check valve shall be installed to prevent backflow.
<h3>What is instrument air?</h3>
The phrase “Instrument Air” is a term that connote a thoroughly clean supply of compressed air that is said to be very free from any kind of contaminations such as particles.
Note that a system often utilize instrument air for different kinds of pneumatic tools, also that of valves and electrical controls.
See full question below
Instrument Air system that employ a standby header shall be permitted to have a simplex cooler and dryer. Where a standby header is provided, a ___________ shall be installed to prevent backflow.
answer choices
one way valve
two way check valve
check valve
Isolation valve
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Answer:
future value = 232369.1361
return % = 384.10 %
Explanation:
given data
principal = $100 per month
time = 40 year = 480 months
rate = 6.25 % yearly = 0.0625 yearly = 0.005208 monthly
to find out
total amount of capital at the end of your investment and percentage is your total return
solution
so here future value formula is
future value = P 
..........1
here r is rate and t is time and P is principal
so put all value
future value = 100 
future value = 232369.1361
so
Total capital at the end of investment-Total principle invested over the years
232369.1361 - 100 ( 12 × 40 )
184369.1361
so
Return % = 
× 100
return % = 384.10 %
What was the options they gave you?
Answer:
Depends, but most of the time definitly
:)
