Which of the following conditions cause the R number to decrease?
A. increasing the velocity of the fluid
B. using a fluid with a greater density
C. reducing the pipe diameter to half its original size
Answer: C
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The seams between vinyl floor covering sheets are
A) adhered together with a urethane adhesive. B) adhered together with an epoxy resin. C) welded together with hot air. D) welded together with hot air and vinyl bead. E) adhered together with a vinyl adhesive.
Chromosomes are composed of __________, which is made of DNA tightly wound around structural proteins
a. saline c. hydrogen b. chromatin d. cytosine
_____________ braid hoses are used for petroleum base hydraulic and fuel oils at low pressures.
Fill in the blank(s) with the appropriate word(s).
The term appliance designates ____ and installed as a unit to perform specific function(s).
A. any ancillary equipment with a detachable plug B. laundry equipment or devices C. utilization equipment commonly built in standardized types and sizes D. kitchen equipment or devices