Drafting Mechanical Layout and Details

Question 1

is the introduction of water
into unsaturated air to
increase its humidity ratio

Answer 1

Adiabatic Saturation

Question 2

• is the temperature at which
  an air-water mixture will
  become saturated and begin
  to yield drops of condensed
  water

Answer 2

Dew Point

Question 3

is the air-water vapor mixture
as measured in the normal
way with a Fahrenheit
Thermometer.

Answer 3

Dry Bulb Temperature

Question 4

is the quantity of British
thermal unit per minute in a
fluid or gas.

Answer 4

Enthalpy

Question 5

• is the weight of the actual
  water vapor in a mixture per
  pound of dry air.

Answer 5

Humidity Ratio

Question 6

is the heat energy required to
change the state of a
substance.

Answer 6

Latent Heat

Question 7

is the heat in British thermal
unit absorbed by a substance
in changing its temperature
without its state.

Answer 7

Sensible Heat

Question 8

is the ratio which indicates
the degree of saturation of
the air with water vapor.

Answer 8

Relative Humidity

Question 9

is the ability of materials to
resist the transfer of heat.

Answer 9

Heat Resistivity

Question 10

is the amount of heat that
flows from one face of a
material to another.

Answer 10

Thermal Conductivity

Question 11

is a material used to stop the
transfer of heat.

Answer 11

insulation

Question 12

is a uniform rating of heat
resistance that flows through
building materials. The higher
the R number, the greater the
resistance to heat flow.

Answer 12

R Value

Question 13

is a heat
exchanger that removes heat
from refrigerant vapor and
transfers it to
the water running through it.
… In doing so, the vapor
condenses and gives up heat
to the water running inside
the tube.

Answer 13

Water-Cooled
Condenser

Question 13

are
seldom used for capacities
above 3 tons of refrigeration
unless an adequate water
supply is extremely difficult to
obtain. The principal
disadvantages of this kind are
the high power cost and the
reduction of capacity on hot
days

Answer 13

Air cooled condensers

Question 14

what type of fan is centrifugal fans?

Answer 14

radial type

Question 15

An important step
in efficient space comfort
conditioning is the proper
selection of air outlets. This
section presents generalized
descriptions and characteristics
of the types of grilles, registers
and diffusers commonly used in
commercial air distribution
applications today

Answer 15

Air Outlets

Question 16

what type of fan is the Propeller Fan

Answer 16

Axial type