INSTRUMENTATION FINAL NRCC | 121
QUESTIONS AND ANSWERS | LATEST UPDATE
WITH COMPLETE SOLUTION
Endothermic reaction - ANSWERS-A reaction that ABSORBS energy in the
form of heat. Therefore more heat and energy needs to be added to sustain
the reaction.
2 Ways heat is transferred - ANSWERS-convection and conduction
Viscosity - ANSWERS-A liquid's resistance to flowing
hygrometer - ANSWERS-A humidity analyzer that measures the physical and
electrical changes that occur in various materials as they absorb or release
moisture.
triple point of water - ANSWERS-temperature and pressure at which water
will coexist as a solid, liquid, gas.
Static Head - ANSWERS-Pressure of a fluid due to the head of fluid above
some reference point.
Material Mass Flow Meter - ANSWERS-Is used to measure the actual quantity
of mass of a flowing liquid.
Dry leg - ANSWERS-Impulse line that is filled with a noncondensing gas used
to protect an instrument.
, specific gravity - ANSWERS-The ratio of a density of fluid to the density of
reference fluid.
Reynolds number - ANSWERS-The ratio of inertial forces to viscous forces.
(How laminar and turbulent flow is)
ORP - ANSWERS-oxidation-reduction potential
Heatsink - ANSWERS-removes heat from electronic components
Fieldbus - ANSWERS-Serial - two way communication network
variable area flow meter - ANSWERS-maintains a constant differential
pressure and allows the flow area to change with flow rate.
What does an O2 sensor in a boiler stack do? - ANSWERS-To make sure the
boiler is running efficiently and make sure there is a good fuel to oxygen
ratio.
Intrinsically Safe - ANSWERS-A protection feature for the safe operation of
electronic equipment in explosive atmospheres and/or under irregular
operating conditions.
What are three temperature scales? - ANSWERS-Fahrenheit, Celsius, Kelvin
Manometer - ANSWERS-A device for measuring pressure with a liquid filled
tube.
Thermowell - ANSWERS-A closed tube used to protect a temperature
instrument from process conditions and allow instrument maintenance to be
performed w/o draining the process fluid.
QUESTIONS AND ANSWERS | LATEST UPDATE
WITH COMPLETE SOLUTION
Endothermic reaction - ANSWERS-A reaction that ABSORBS energy in the
form of heat. Therefore more heat and energy needs to be added to sustain
the reaction.
2 Ways heat is transferred - ANSWERS-convection and conduction
Viscosity - ANSWERS-A liquid's resistance to flowing
hygrometer - ANSWERS-A humidity analyzer that measures the physical and
electrical changes that occur in various materials as they absorb or release
moisture.
triple point of water - ANSWERS-temperature and pressure at which water
will coexist as a solid, liquid, gas.
Static Head - ANSWERS-Pressure of a fluid due to the head of fluid above
some reference point.
Material Mass Flow Meter - ANSWERS-Is used to measure the actual quantity
of mass of a flowing liquid.
Dry leg - ANSWERS-Impulse line that is filled with a noncondensing gas used
to protect an instrument.
, specific gravity - ANSWERS-The ratio of a density of fluid to the density of
reference fluid.
Reynolds number - ANSWERS-The ratio of inertial forces to viscous forces.
(How laminar and turbulent flow is)
ORP - ANSWERS-oxidation-reduction potential
Heatsink - ANSWERS-removes heat from electronic components
Fieldbus - ANSWERS-Serial - two way communication network
variable area flow meter - ANSWERS-maintains a constant differential
pressure and allows the flow area to change with flow rate.
What does an O2 sensor in a boiler stack do? - ANSWERS-To make sure the
boiler is running efficiently and make sure there is a good fuel to oxygen
ratio.
Intrinsically Safe - ANSWERS-A protection feature for the safe operation of
electronic equipment in explosive atmospheres and/or under irregular
operating conditions.
What are three temperature scales? - ANSWERS-Fahrenheit, Celsius, Kelvin
Manometer - ANSWERS-A device for measuring pressure with a liquid filled
tube.
Thermowell - ANSWERS-A closed tube used to protect a temperature
instrument from process conditions and allow instrument maintenance to be
performed w/o draining the process fluid.
