____________ is the property of a fluid, semifluid, or semisolid substance which causes it to resist flow
Fill in the blank(s) with correct word
Viscosity
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By dividing the ____ rating of a lamp by the watts rating, a value called the efficacy of the lamp is determined.
A. volt B. lumen C. ampere D. color
When matching tires on a tandem drive axle truck with dual wheels which of the following should be true?
A. drive lugs should never be retreaded B. radials can only be put on the front drive axle C. all eight drive axle tires should match in nominal size and type of construction D. tires are of different construction, must be matched in nominal size
Flex duct is easy to install, quiet, but has higher ________ than all other forms of duct material
A) installation cost B) efficiency ratings C) energy loss D) resistance to airflow
Fire extinguishers are rated by ____, and this information must be posted as well as understood by all craftspeople.
A. nitrogen form B. compression category C. storage temperature D. fire type