What are the two alloys in 50/50 solder?
A. tin, silver
B. tin, copper
C. tin, lead
D. silver, antimony
Answer: C
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The flowering tassel of a corn plant has stamens but no pistil, and is known as a _____________________ (male) flower
Fill in the blank(s) with correct word
Technician A says that vehicles with electronic returnless fuel systems use pulse width modulation to power the fuel pump and maintain fuel pressure. Technician B says that the electronic returnless fuel system uses a power transistor to control the fuel pump. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
Early vehicles were constructed mostly of what material?
A) Cast iron B) Tin C) Steel D) Wood
With regard to a rectangular waveform, a transition is a change from
A) pulsating direct current to smooth direct current B) ac to dc C) dc to ac D) either dc level to the other