Which of the following groups was especially susceptible to the Spanish flu virus?
a. the young and healthy
b. infants and small children
c. the elderly and the sick
d. nurses and health care workers
a. the young and healthy
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The solenoid valve of a bypass humidifier controls the volume of water flow using a(n) _____.
a. water-pressure regulator b. orifice c. intermittent pulse d. globe valve
The ____________________ is the lowest possible melting point of an alloy.
Fill in the blank(s) with the appropriate word(s).
On internal wet disc brake systems the friction discs are _____________ internally to the rotating wheel.
Fill in the blank(s) with the appropriate word(s).
A special tool has been designed to help remove and install nozzles from the burner. It is called a nozzle wrench and it ____.
A. has an outer wrench that holds the burner in place, while the inner wrench holds the nozzle B. minimizes the chance of cracking the porcelain C. can only be used on semi-hollow cones D. both a and b