Complete Questions And Correct Detailed Answers|
Brand New Version!
water contracts as cooled above and below 39.1 F (T/F)
False
water contracts as cooled until it reaches 39.1 F and then expand until it
reaches 32 F
how many BTU does the human body give off from evaporation
100 BTU per hour
whats factors are considered in measuring power?
force
exerted
distance
time required
100 inches of steel would increase approx of the temperature were
increased
100F
1/16" every hundred inches
,if the large piston of a hydraulic press moves 2" as the smaller piston
moves 3 feet, what is the MA of the press
MA = 18
MA = 3' / 2" or MA = 36" / 2" = 18
a compression tank which has lost its charge of air and becomes filled
with water is..
water logged
Engine Horsepower
33,000 ft. lbs/min
550 ft. lbs/second
_ ________ shows graphically the relationship between specific air
conditions
Psychrometric Charts
the lowest temperature reached by evaporating water under a specific
set of air conditions
Wet Bulb Temperature
the specific heat of air is
.24 BTU
,1 MBH is equal to
1,000 BTU/hr
heat added to a gas above saturation temperature is known as...
super heat
an open expansion tank must be located at...
the highest point open to the atmosphere (not near the boiler)
water is not used in thermometers because....
it does not expand uniformly
in a hot water system air is completely eliminated from the system (T/F)
False
you need air in the compression tank
, which of the following is not a steam heating system
a) 1 pipe gravity
b) vapor
c) vacuum
d) series loop
d) series loop
AIR when passing over 32F ice has its temperature lowered and loses
a portion of its water by...
condensation
when air is passed throufh a water spray, some of the moisture of the
air is given up only if the temperature of the water is below the
____________________________________________________ temperature of
the
air
dewpoint
at any one temperature air is capable of containing a certain maximum
amount of water vapor (T/F)
true
air containing all the water vapor it can at its existing temperature
saturated air