Question 1

Hybrid vehicles are classified as mild or full hybrid based on the:

Accepted Answer

Mild and full hybrids are differentiated by the number of hybrid functions they can perform, such as regenerative braking, electric motor assist, and engine start/stop capabilities.

Question 2

Which function uses a small, electric transmission hydraulic pump that prevents a delay in the engagement of the transmission?

Accepted Answer

Idle start uses a small, electric transmission hydraulic pump to quickly engage the transmission without delay when the engine restarts.

Question 3

What is helpful on small three- and four-cylinder engines with respect to compression and power impulses?

Accepted Answer

Torque smoothing is helpful on small three- and four-cylinder engines as it helps to even out the power impulses and reduce vibrations, leading to a smoother operation.

Question 4

All of the following statements are true except:

Accepted Answer

Regenerative brakes are primarily designed to recover energy rather than provide significant stopping power. They are often supplemented by traditional friction brakes for full stopping capability.

Question 5

Which of these systems uses an electric motor with an ICE so that the overall displacement of the ICE can be reduced?

Accepted Answer

Torque assist uses an electric motor to assist the ICE, reducing the overall displacement of the ICE.

Question 6

Tech A states that all hybrid vehicles can operate on electric propulsion only. Tech B states that most hybrids utilize stop start technology to improve fuel economy. Who is correct?

Accepted Answer

Tech B is correct because most hybrid vehicles use stop-start technology to improve fuel economy. Tech A is incorrect because not all hybrid vehicles can operate solely on electric propulsion; some rely on a combination of electric and internal combustion engines.

Question 7

Tech A states that electric motors tend to create more torque than gasoline engines. Tech B states that electric motors are used to create additional high speed horsepower on most hybrids. Who is correct?

Accepted Answer

The answer of Tech A states that electric motors tend...

Question 8

Tech A states that hybrid vehicles store AC voltage in battery packs to be used to propel the vehicle. Tech B states that hybrid vehicles recapture energy during braking and stores it in the battery. Who is correct?

Accepted Answer

Hybrid vehicles recapture energy during braking (regenerative braking) and store it in the battery, but they do not store AC voltage; they store DC voltage.

Question 9

All of the following statements with respect to the Honda integrated motor assist are true except:

Accepted Answer

The Honda integrated motor assist (IMA) system does have a conventional 12-volt starter for certain conditions, such as starting the engine when the hybrid battery is low.

Question 10

All of the following systems are considered as full hybrid that can be classified as a series-parallel hybrid except:

Accepted Answer

Electric-only propulsion systems do not use a combination of internal combustion engine and electric motor in a series-parallel configuration, unlike the other options listed.

Question 11

Which system allows the vehicle to use the fuel savings of the idle stop function in hybrid vehicles?

Accepted Answer

The Belt Alternator Starter (BAS) system allows the vehicle to automatically stop the engine when the vehicle is idle and restart it when needed, thus saving fuel.

Question 12

Which hybrid system has two electric motors attached through a set of transfer gears?

Accepted Answer

The answer of Which hybrid system has two electric motors...

Question 13

Tech A states that hybrid vehicles use higher voltage than traditional cars. Tech B states that hybrid vehicles use one or more operating modes to achieve higher fuel economy. Who is correct?

Accepted Answer

Hybrid vehicles typically operate at higher voltages than traditional cars to power their electric motors. They also use multiple operating modes, such as electric-only, gasoline-only, or a combination of both, to optimize fuel efficiency.

Question 14

Tech A states that hybrid vehicles use high voltage to power the traditional starter motor to allow it to crank the engine over faster. Tech B states that some hybrids will have two starter motors, one high voltage, one 12 volts. Who is correct?

Accepted Answer

Tech B is correct because some hybrid vehicles have two starter motors: a high voltage motor for propulsion and a 12-volt starter motor for traditional engine starting. Tech A is incorrect as hybrid vehicles typically do not use high voltage for the traditional starter motor.

Question 15

Tech A states that vehicle transmissions must include some modifications to allow for start stop operation. Tech B states that the Honda IMA system utilizes a thin electric motor between the engine and transmission. Who is correct?

Accepted Answer

Both Tech A and Tech B are correct. Start-stop systems often require transmission modifications to handle frequent engine restarts, and the Honda IMA system does use a thin electric motor positioned between the engine and transmission.

Question 16

All of the following statements are true except:

Accepted Answer

High voltage gloves should be regularly inspected and tested for any damage, not just major damage, to ensure safety. They should be discarded if they fail inspection or testing, even if the damage is minor.

Question 17

Tech A states that before performing service on some components on a hybrid vehicle it will be necessary to shut off the high voltage system. Tech B states that high voltage gloves must be worn when working on high voltage circuits. Who is correct?

Accepted Answer

Both Tech A and Tech B are correct. Shutting off the high voltage system is necessary to ensure safety when servicing certain components of a hybrid vehicle. Additionally, wearing high voltage gloves is a crucial safety measure when working on high voltage circuits to prevent electric shock.

Question 18

Tech A states that high voltage gloves should be replaced every year. Tech B states that high voltage gloves should be tested or replaced every 6 months. Who is correct?

Accepted Answer

High voltage gloves should be tested or replaced every 6 months to ensure safety and compliance with industry standards.

Question 19

Tech A states that the Prius drive system only uses electric motors to propel the vehicle in reverse. Tech B states that the Prius drive system uses a small planetary gear set for reverse. Who is correct?

Accepted Answer

The Toyota Prius uses its electric motor to propel the vehicle in reverse, not a planetary gear set.

Question 20

Tech A states that high voltage wiring will be encased in color coded conduit to identify the high voltage. Tech B states that many connectors on hybrids will have an interlock system built in that will turn off the high voltage system if the connector is unplugged. Who is correct?

Accepted Answer

High voltage wiring in hybrid vehicles is often encased in color-coded conduit for safety and identification, and many connectors have an interlock system to disable the high voltage when unplugged.

Quiz 22: Hybrid Transmissions

Hybrid vehicles are classified as mild or full hybrid based on the:

Which function uses a small, electric transmission hydraulic pump that prevents a delay in the engagement of the transmission?

What is helpful on small three- and four-cylinder engines with respect to compression and power impulses?

All of the following statements are true except:

Which of these systems uses an electric motor with an ICE so that the overall displacement of the ICE can be reduced?

Tech A states that all hybrid vehicles can operate on electric propulsion only. Tech B states that most hybrids utilize stop start technology to improve fuel economy. Who is correct?

Tech A states that electric motors tend to create more torque than gasoline engines. Tech B states that electric motors are used to create additional high speed horsepower on most hybrids. Who is correct?

Tech A states that hybrid vehicles store AC voltage in battery packs to be used to propel the vehicle. Tech B states that hybrid vehicles recapture energy during braking and stores it in the battery. Who is correct?

All of the following statements with respect to the Honda integrated motor assist are true except:

All of the following systems are considered as full hybrid that can be classified as a series-parallel hybrid except:

Which system allows the vehicle to use the fuel savings of the idle stop function in hybrid vehicles?

Which hybrid system has two electric motors attached through a set of transfer gears?

Tech A states that hybrid vehicles use higher voltage than traditional cars. Tech B states that hybrid vehicles use one or more operating modes to achieve higher fuel economy. Who is correct?

Tech A states that hybrid vehicles use high voltage to power the traditional starter motor to allow it to crank the engine over faster. Tech B states that some hybrids will have two starter motors, one high voltage, one 12 volts. Who is correct?

Tech A states that vehicle transmissions must include some modifications to allow for start stop operation. Tech B states that the Honda IMA system utilizes a thin electric motor between the engine and transmission. Who is correct?

All of the following statements are true except:

Tech A states that before performing service on some components on a hybrid vehicle it will be necessary to shut off the high voltage system. Tech B states that high voltage gloves must be worn when working on high voltage circuits. Who is correct?

Tech A states that high voltage gloves should be replaced every year. Tech B states that high voltage gloves should be tested or replaced every 6 months. Who is correct?

Tech A states that the Prius drive system only uses electric motors to propel the vehicle in reverse. Tech B states that the Prius drive system uses a small planetary gear set for reverse. Who is correct?

Tech A states that high voltage wiring will be encased in color coded conduit to identify the high voltage. Tech B states that many connectors on hybrids will have an interlock system built in that will turn off the high voltage system if the connector is unplugged. Who is correct?