| quad |
one quadrillion; 10 to the 15th power (1015)
(not an SI quantity). |
| qualification test |
procedure used to verify the accuracy of the
measurement techniques (temperature, airflow rates, duct heat calibration)
employed in determination of heating or cooling effect. |
| quality assurance |
testing and inspection of all or a portion of a
final product, assembly, or system to ensure that the desired quality level is
attained. |
| quality control |
inspection, analysis, and action applied to a
portion of a product, assembly, or system in the manufacturing or construction
operation, to estimate overall quality, and to determine what, if any, changes
must be made to achieve or maintain a desired quality level. |
| quasi-steady state (solar collector) |
condition of operation of the collector and/or
system in which the measured solar irradiance, flow rates, and thermodynamic
states of temperature and pressure at various points in the collector and/or
system do not vary during the period of test measurements. |
Resources 
English RSS
