Water and air leakage between the rooftop unit and the rooftop curb are prevented by:
A) UL-rated duct tape applied from the inside of the curb.
B) Gasket material between the curb and the unit.
C) UL-rated duct tape applied over the outside of the curb.
D) UL-rated duct tape applied to both the inside and outside of the curb.
B
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A person's blood type is determined by the
A) size and shape of red blood cells. B) number of antibodies in the plasma. C) chemical character of hemoglobin. D) presence or absence of specific surface antigens on the plasma membrane. E) type of oxygen- and carbon dioxide-binding sites on the hemoglobin molecules.
What is used to transfer torque to all four wheels?
A) Four differentials B) Four driveshafts C) A transfer case or power transfer unit D) All of the above
What defines the upper and lower rpm shift limits of a truck transmission?
A. number of gear ratios B. engine torque rise profile rpms C. final drive carrier ratio D. tailshaft rpm
Carry the answer to four decimal places. What is the difference in diameters between 13 wire and number 15 wire?
Fill in the blank(s) with the appropriate word(s).