Totem-pole outputs ________
A) can be connected in series when higher output voltages are required
B) can be connected in parallel when higher output currents are required
C) can be connected together to handle higher load currents and output voltages
D) cannot be connected together because high currents can damage one or both of the transistors if the outputs are in opposite states (one HIGH and one LOW)
D
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Worksite lock-out/tag-out procedures are established by __________.
a. the company you work for b. UL c. NFPA d. OSHA
Visible light striking a prism causes refraction at both air/glass interfaces and separates the light into its various frequencies, which appear as__________
A. fibers B. beamwidths C. colors D. pulses
Before beginning an insulation project, you should always complete a _____
a. safety data sheet b. materials and equipment inventory c. job hazard analysis d. labor estimate
Cargo Inspection:
a. Should be performed after every break you take while driving. b. Are needed only if hazardous materials are being hauled. c. Is most often not the responsibility of the driver.