Hybrid Book - Chapter 3
10 Questions
| Total Attempts: 100
Questions and Answers
- 1.The two categories of systems that can discharge system high voltage are ___ systems.
- A.
Primary and secondary
- B.
High-voltage and low-voltage
- C.
Active and passive
- D.
Level 1 and Level 2
- 2.SAE J1673 standard states that "all high-voltage covering and/or cabling shall be visually identified with ___ covering."
- A.
Red
- B.
Orange
- C.
Blue
- D.
Black
- 3.The two types of interlock loop designs that can be used to monitor a high-voltage system are ___ systems.
- A.
Serial and local
- B.
Primary and secondary
- C.
High-loop and low-loop
- D.
Interlock A and Interlock B
- 4.A serial interlock loop system is designed to ___ if its circuit is broken or opened
- A.
Immediately stop propulsion
- B.
Reduce propulsion power by 50%
- C.
Open battery-pack relays/contactors
- D.
Light the MIL
- 5.A ___ is used to assist in identifying the location of an isolation fault.
- A.
Voltage tester
- B.
Hall effect transducer
- C.
Wattage tester
- D.
Megohmmeter
- 6.___ can result when isolation-fault detection, diagnosis, and repair are not performed.
- A.
Damage to the hybrid controller
- B.
Electrical shock
- C.
Power inverter damage
- D.
Delay of vehicle power-up
- 7.A passive discharge circuit uses a(n) ___ to discharge energy in the high-voltage bus capacitors.
- A.
Resistor
- B.
Diode
- C.
Comparator
- D.
Op-amp
- 8.A local interlock loop uses ___ to open the contractors when the high-voltage system has been breached.
- A.
LED signaling
- B.
LAN communications
- C.
Selective discharging
- D.
Passive safety systems
- 9.The purpose of the isolation-fault detection circuit is to monitor the ground of the vehicle chassis for ___.
- A.
Hybrid-controller resistance
- B.
Battery-pack voltage fade
- C.
Power-inverter damage
- D.
Voltage leakage
- 10.The Lexus RX400h and Toyota Highlander hybrids use ___ interlock systems.
- A.
Serial
- B.
Local
- C.
Grounded-switch
- D.
Open-controller
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