IICRC Commercial Drying Specialist (CDS) | Latest
Exam questions with Corrected Answers
Direct expansion systems circulate refrigerant through a cold evaporator coil that cools
the airstream that is then ______________ - ANSWER Ducted into and distributed
throughout the building fan coil units located within the building
Chiller-water systems circulate conditioned water (chilled or heated) through the
system that isdistributed to ________________ - ANSWER
he temperature at which humidity in air reaches saturation (100% RH), below which
watervapor will condense from that air toform condensation on surfaces is called the
____ - ANSWER Dew point
Convection, conduction and radiation are the three mechanisms of _ - ANSWER
Vapor diffusion
Enthalpy is a measure of the total energy in the air and is thetotal of the
____________energyand the ______________ energy - ANSWER Sensible
Latent
Humidity ratio, dewpoint and vapor pressure are all absolute ways of expressing
the moisturecontent of the air. True or False - ANSWER True
as the temperature of a material is increased, it's internal vapor pressure ________ -
ANSWER Increases
, The2nd law ofthermodynamicsstates thatenergy flows only from being concentrated
in oneplace to becoming diffused or dispersed.True or False - ANSWER True
The two primary mechanisms by which moisture moves through
materialsare_________________ and ____________________ - ANSWER Capillary
action
Vapor diffusion
Water activity describes the amount of free water available to ______ - ANSWER
Support microbial growth at the surface of a material
the energy that is released or absorbed as a material goes through a phase change
is called_____________________energy - ANSWER Latent
The energy that causes a temperature change in a material is called _______________
energy - ANSWER Sensible
"As built" drawings refer to - ANSWER Final drawings of actual construction
Rooms around which you are likely to find sound attenuated wall construction are -
ANSWER Conference rooms
Executive offices
Auditoriums
Between apartment or condos
Areas you are likely to find multiple layers of drywall are - ANSWER School hallways
Hospital hallways
Elevator shafts
Exam questions with Corrected Answers
Direct expansion systems circulate refrigerant through a cold evaporator coil that cools
the airstream that is then ______________ - ANSWER Ducted into and distributed
throughout the building fan coil units located within the building
Chiller-water systems circulate conditioned water (chilled or heated) through the
system that isdistributed to ________________ - ANSWER
he temperature at which humidity in air reaches saturation (100% RH), below which
watervapor will condense from that air toform condensation on surfaces is called the
____ - ANSWER Dew point
Convection, conduction and radiation are the three mechanisms of _ - ANSWER
Vapor diffusion
Enthalpy is a measure of the total energy in the air and is thetotal of the
____________energyand the ______________ energy - ANSWER Sensible
Latent
Humidity ratio, dewpoint and vapor pressure are all absolute ways of expressing
the moisturecontent of the air. True or False - ANSWER True
as the temperature of a material is increased, it's internal vapor pressure ________ -
ANSWER Increases
, The2nd law ofthermodynamicsstates thatenergy flows only from being concentrated
in oneplace to becoming diffused or dispersed.True or False - ANSWER True
The two primary mechanisms by which moisture moves through
materialsare_________________ and ____________________ - ANSWER Capillary
action
Vapor diffusion
Water activity describes the amount of free water available to ______ - ANSWER
Support microbial growth at the surface of a material
the energy that is released or absorbed as a material goes through a phase change
is called_____________________energy - ANSWER Latent
The energy that causes a temperature change in a material is called _______________
energy - ANSWER Sensible
"As built" drawings refer to - ANSWER Final drawings of actual construction
Rooms around which you are likely to find sound attenuated wall construction are -
ANSWER Conference rooms
Executive offices
Auditoriums
Between apartment or condos
Areas you are likely to find multiple layers of drywall are - ANSWER School hallways
Hospital hallways
Elevator shafts
