If a CMU wall is vertically reinforced at 8 in. on centers, which of the following units will you recommend for use in the wall?
A) Sash unit
B) H-unit
C) A-unit
D) Bond beam unit
E) Standard unit with three webs
B) H-unit
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Technician A says when working around an electric fan motor on a vehicle, disconnect the electrical connector from the fan motor. Technician B says it is safe to work around an electric fan motor if the ignition switch is turned off. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Voltage signals (waveforms) that do not go below zero are called ________
A) DC signals B) AC signals C) DC coupled signals D) Pulse trains
A 2.2 k? resistor has 4 mA of current passing through it. The resistor dissipates
A) 8.8 mW B) 35.2 W C) 35.2 mW D) 4 mW
Humidity in the air represents heat that makes humans uncomfortable in hot weather. What causes this heat factor present in humidity?
A) Hot air coming down from the attic B) Sunlight C) Latent heat in the water vapor D) Lack of proper airflow