A. +5 to +12 VDC
B. 0 to 30 V DC
C. +12 to 300 V DC
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, D. The anode or plate voltage supply ANS >>> D. The anode or plate voltage supp
2. Leakage current in an electronic product, between either of the AC power
cord conductors and the chassis or any exposed metals should not exceed
.
A. 5 microamps
B. 500 microamps
C. 5 milliamps
D. 50 milliamps ANS >>> B. 500 microamps
3. Shaded components on the electronics schematics mean ANS >>>
A. Only factory service personnel may change the part
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, B. Only exact replacement parts may be used
C. The shading makes for better readability
D. High voltage is present on these parts ANS >>> B. Only exact replacement
parts may be used
4. Ingested solder fumes when particles .
A. I'm not harmful to the human body
B. Are toxic
C. From lead-tin solder aren't harmful
D. From tin-alloys are most harmful ANS >>> B. Are toxic
5. Second degree skin burns should .
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, A. Not be treated with ice and bandage pack
B. Be covered with thick bandages
C. Be treated with cold water or ice
D. Be treated by draining blisters ANS >>> A. Not be treated with ice and bandage
pack
6. Rules describing the fire or toxicity retardant types of cabling which may be
installed in buildings is contained in .
A. NEC Article 770
B. UL 569B
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