Question 1

Before repairing a hybrid vehicle, a technician should do which of the following?

Accepted Answer

A technician should have the proper safety equipment, refer to the service information, and have a thorough knowledge of the system operation to safely and effectively repair a hybrid vehicle.

Question 2

Technician A says that some hybrid vehicle systems use very strong magnets that can pinch a finger, hand, or limb between the part and the magnet. Technician B says that a special tool may be needed to release a special magnet. Who is correct?

Accepted Answer

Both technicians are correct. Hybrid vehicle systems can indeed use strong magnets that pose a risk of injury, and special tools may be required to safely handle or release these magnets.

Question 3

High voltage cables are always identified by an orange color conduit.

Accepted Answer

The answer of High voltage cables are always identified by...

Question 4

Technician A says that a technician should always exercise extreme caution when working on and around hybrid vehicles because the high voltages used can cause serious harm and death. Technician B says that a technician should work on a hybrid vehicle only after they have received the proper training and understand the system and its operation. Who is correct?

Accepted Answer

Both technicians are correct. Technician A is right about the dangers of high voltage in hybrid vehicles, and Technician B is correct that proper training is essential for safely working on these systems.

Question 5

Technician A says that all high-voltage cables on a hybrid vehicle are wrapped in high-visibility pink plastic for easy identification. Technician B says that all high-voltage cables are wrapped in orange plastic for easy identification. Who is correct?

Accepted Answer

High-voltage cables in hybrid vehicles are typically wrapped in orange plastic for easy identification.

Question 6

Technician A says that a technician should always refer to the appropriate service information before attempting any hybrid vehicle repairs. Technician B says that the repairs to a hybrid vehicle are the exact same as an internal combustion engine vehicle, and that there are no special safety procedures that need to be followed. Who is correct?

Accepted Answer

Technician A is correct because hybrid vehicles have unique systems and safety procedures that differ from traditional internal combustion engine vehicles, requiring reference to specific service information.

Question 7

Technician A says that there are no special tools for servicing a high-voltage system on a hybrid vehicle. Technician B says that the special tools needed are always identified on the vehicle's underhood service sticker and not in the service information. Who is correct?

Accepted Answer

Special tools are often required for servicing high-voltage systems on hybrid vehicles, and these tools are typically identified in the service information, not just on the underhood service sticker.

Question 8

Which of the following is NOT needed to service a hybrid vehicle?

Accepted Answer

All of the choices listed are necessary to safely and effectively service a hybrid vehicle, including safety equipment, training, and understanding of the system.

Question 9

Technician A says that hybrid vehicles have an internal combustion engine and an electric motor. Technician B says that most hybrid vehicles utilize regenerative braking to help improve fuel economy. Who is correct?

Accepted Answer

Both Technician A and Technician B are correct. Hybrid vehicles typically have both an internal combustion engine and an electric motor. Additionally, most hybrid vehicles use regenerative braking to improve fuel economy by converting kinetic energy into electrical energy to recharge the battery.

Question 10

Which of the following hybrid functions allows manufacturers to reduce engine size while retaining performance similar to a large engine?

Accepted Answer

Torque assist allows manufacturers to use a smaller engine by providing additional power from the electric motor, maintaining performance similar to a larger engine.

Question 11

Which of the following is NOT a function of a hybrid vehicle?

Accepted Answer

All the listed options are functions of a hybrid vehicle. Hybrid vehicles use idle stop to save fuel, regenerative braking to recover energy, and torque smoothing to provide a smoother driving experience.

Question 12

Technician A says torque assist refers to using torque to help propel the vehicle when additional torque is needed. Technician B says common hybrid systems in current production include belt alternator starter and integrated motor assist. Who is correct?

Accepted Answer

Torque assist is a feature in hybrid vehicles where the electric motor provides additional torque to help propel the vehicle, which is what Technician A describes. Technician B is also correct as belt alternator starter and integrated motor assist are common hybrid systems in production.

Question 13

Technician A says vehicles with continuously variable transmissions are becoming more common. Technician B says a hybrid drive system system uses two or more power sources. Who is correct?

Accepted Answer

Continuously variable transmissions (CVTs) are indeed becoming more common in vehicles due to their efficiency and smooth driving experience. Hybrid drive systems typically use two or more power sources, such as an internal combustion engine and an electric motor, to improve fuel efficiency and reduce emissions.

Question 14

Technician A says all hybrid vehicles use continuously variable transmissions (CVT). Technician B says a system that uses two or more power sources is a hybrid drive system. Who is correct?

Accepted Answer

Technician B is correct because a hybrid drive system is defined by the use of two or more power sources, such as an internal combustion engine and an electric motor. Not all hybrid vehicles use CVTs; some use different types of transmissions.

Question 15

Which of the following is a function of a hybrid system?

Accepted Answer

A hybrid system combines multiple functions such as torque assist, regenerative braking, and torque smoothing to improve vehicle efficiency and performance.

Question 16

Technician A says torque assist refers to using electric motor torque to slow the vehicle when needed. Technician B says an electric motor is capable of creating its maximum torque as soon as it begins spinning. Who is correct?

Accepted Answer

Technician B is correct because electric motors can produce maximum torque from the moment they start spinning. Technician A is incorrect because torque assist typically refers to using electric motor torque to aid in acceleration, not slowing the vehicle.

Question 17

How is the high voltage battery recharged?

Accepted Answer

The high voltage battery in hybrid and electric vehicles is recharged through regenerative braking, which uses the kinetic energy of the moving vehicle (A), and by the internal combustion engine driving the electric motor/generator (B).

Question 18

Which of the following features qualifies a vehicle as a "mild hybrid"?

Accepted Answer

Idle stop is a feature of mild hybrids, allowing the engine to shut off when the vehicle is stopped to save fuel.

Question 19

Which of the following have led vehicle manufacturers to create newer, more efficient powertrain systems?

Accepted Answer

Manufacturers aim to improve fuel economy, reduce emissions, and minimize environmental impact, leading to the development of more efficient powertrain systems.

Question 20

A ________ drive system is defined as a system that uses two or more power sources, such as an internal combustion engine (ICE) and an electric motor, to propel the vehicle.

Accepted Answer

A hybrid drive system uses two or more power sources, typically an internal combustion engine and an electric motor, to propel a vehicle.

Quiz 22: Hybrid Transmissions