UNIT 4 -- “Measuring Process Variables” Flashcards
deci
1/10 OR 0.1
kilo
1,000 OR thousand
milli
1/1000 OR 0.001
centi
1/100 OR 0.01
liter
measurement of volume
gram
measurement of mass
meter
roughly 1 yard
liter
roughly 1 quart
kilogram
roughly 2 pounds
1 L = _______ mL
1000
1 km= _______ m
1000
1000 mg = ________ g
1
100 cm = ________ m
1
Volume =
mass/density
Mass =
volume x density
LIST AND DESCRIBE 4 INSTRUMENTS USED TO MEASURE PRESSURE:
((1))manometer_ -U-shaped tube containing liquid ((2)) bourdon tube -__flexible device (C-shaped) that changes shape ((3)) bellows_ -__ flexible device that changes shape ((4))diaphragm - flexible device that changes shape
LIST 5 FACTORS THAT AFFECT FLOW RATE:
((1))pressuren ((2))pipe diameter ((3))pipe length ((4))pipe restrictions ((5))viscosity
NAME 7 UNITS FOR MEASURING PRESSURE:
((1))kilopascals ((2))inches Hg ((3))bar ((4)) mm Hg ((5))pascals ((6)) millibar ((7)) psi
bimetallic thermometer
temperature device that consists of 2 strips of
different metals that expand and contract at
different rates
steam collapse
steam condensation in an unvented tank
vacuum
pressure below atmospheric pressure
manometer
pressure-measuring device that consists of a
U-shaped tube that is not flexible
differential pressure (D/P) cell
level-measuring device that senses difference
in pressure levels at top and bottom of tank
orifice plate
thin-metal plate, with carefully-sized hole,
installed in a pipeline
rotameter
vertically-mounted glass tube with plug-like
float that moves up and down with flow rate
coriolis flowmeter
vibrating tube that twists as fluid flows
through it
tare
adjust a scale read-out to zero
______ As temperature increases, a gas can turn to liquid
false
______ As temperature increases, a solid can turn to liquid.
true
______ As temperature increases, liquids, solids, and gases expand.
true
______ As temperature increases, the density of a substance decreases
true
Boiling and freezing for F
212°_F ____ Fahrenheit scale __32°_F __
Boiling and freezing for C
__100°_C _____ Celsius scale ___0°_C _