What requires a dimension of 3/8 based on the welding symbol shown in Figure 3?
a. Land
b. Weld size
c. Root opening
d. Depth of bevel
e. Height of melt through
d. Depth of bevel
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Low-voltage remote control switching relays use _____.
a. no coil b. a split coil c. a single coil d. four coils
What is the total available static pressure for the ductwork in a system with the following specifications?
Blower: 0.6" WC total external static at design airflow Evaporator Coil: 0.25 in WC static pressure drop at design airflow Filter: 0.15 in WC static pressure drop at design airflow Registers and Grills: 0.05" WC static pressure drop at design airflow A) 0.6 in WC available static pressure B) 0.15 in WC available static pressure C) 10 in WC available static pressure D) 0.25 in WC available static pressure
What category electric meter is intended only for measurement inside an appliance?
A) Category III B) Category IV C) Category I D) Category II
Layer 1, 2 and 3 communications protocols are commonly deployed in the metro network
Indicate whether the statement is true or false