Electrical and Electronic Systems Flashcards
7 cards from real ASE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Electrical and Electronic Systems flashcards as text
Two 6-ohm resistors are connected in parallel. What is the total resistance?
Answer: 3 ohms
Equal resistors in parallel equal one resistor's value divided by the number of resistors: 6 / 2 = 3 Ω.
Adding another bulb in parallel to an existing lighting circuit causes total circuit current to:
Answer: Increase
Each added parallel branch lowers total resistance, so total current increases.
With the engine running and loads off, a typical charging system regulated voltage specification is:
Answer: 13.5–15.0 volts
Most charging systems regulate to roughly 13.5–15.0 V depending on temperature and design.
On hybrid and electric vehicles, high-voltage cables are identified by which color?
Answer: Orange
Industry standard marks high-voltage cables orange; blue or yellow often indicates intermediate voltage circuits.
Which gloves are appropriate when servicing a hybrid vehicle's high-voltage system?
Answer: Class 0 insulated rubber gloves rated for 1,000 V with leather protectors
Class 0 lineman's gloves rated to 1,000 V, worn with leather protectors and inspected before use, are the standard.
What is the best method to locate an intermittent open caused by a chafed wiring harness?
Answer: Perform a wiggle test while monitoring the circuit
Flexing the harness while watching a meter or scan data reveals intermittent breaks as they occur.
Why should technicians avoid piercing wire insulation with test probes?
Answer: It can let moisture in and cause corrosion in the wire
Insulation holes let in moisture that corrodes the copper and creates future high-resistance faults.