Which type of humidifier requires the least cleaning?
A) Plate type humidifiers
B) Evaporative humidifiers that do not hold water in a sump
C) Wetted element humidifiers that have a water sump
D) Motorized atomizing humidifiers
B
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When rebar must be cut to close tolerances, the preferred tools are an abrasive (chop) saw or a(n) _____.
a. hacksaw b. oxyacetylene torch c. portable band saw d. bolt cutter
Un índice de resistencia del material de terminaciones para lugares de reunión se define como el tiempo que demora un soporte de madera expuesto al fuego en alcanzar un aumento de la temperatura promedio de _____ o un aumento de la temperatura individual de 325 °F (163 °C) cuando la temperatura se mide en el plano de la madera más cercana al fuego.
a. 121°C b. 160°C c. 248°C d. 300°C
In confinement barns, cattle stay cleaner and yield _____ percent more when slaughtered
a. 1 to 2 c. 3 to 4 b. 2 to 3 d. 4 to 5
To avoid electrical shock, technicians should:
A) Make sure the unit is grounded. B) Make sure they are not grounded and the unit is grounded. C) Make sure they are grounded. D) Make sure they are not grounded.