The difference between vent sizing for natural-draft appliances and fan-assisted appliances is that:
A) Vents for fan-assisted appliances are always the same size as the connector on the furnace.
B) Columns for fan-assisted appliances list both a minimum and a maximum appliance capacity for each vent size.
C) Columns for fan-assisted appliances list sizes for both vertical and horizontal installation.
D) Vents for fan-assisted appliances are typically larger in diameter for the same BTU capacity.
B
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Which of the following is a true statement about rigging hardware?
a. Shouldered eyebolts are not acceptable for lifting operations. b. Screw-pin shackles require a cotter key to be installed in the end of the pin. c. Serrated-jaw clamps are the only type of hardware that needs no rated load information. d. Plate clamps are designed to lift only one plate at a time.
Probiotics promote the growth of _____
a. gram-negative bacteria b. healthy bacteria c. Streptococcus bacteria d. Clostridium
What are the two general categories for properties of matter?
What will be an ideal response?
TechnicianA says the DBC-7 usesdynamic rear proportioning (DRP)tocontrol rear brake pressureduring normal braking. Technician Bsays the DBC-7 has two possible traction control systems:enhanced traction system (ETS)and TCS. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B