Question 1

A transaxle is a transmission that does not have a differential.

Accepted Answer

A transaxle combines the functions of a transmission and a differential into one unit, thus it does have a differential integrated within it.

Question 2

Which type of engine is classified as internal combustion?
A)gasoline
B)diesel
C)both a and b
D)neither a nor b

Accepted Answer

Both gasoline and diesel engines are classified as internal combustion engines because they burn fuel within the engine itself to generate power.

Question 3

An SUV can be based on either a truck or an automobile platform.

Accepted Answer

SUVs can be built on a truck-based platform, which is more rugged and suitable for off-road driving, or on a car-based platform (crossover SUVs), which offers a more comfortable ride and better fuel efficiency.

Question 4

Many hybrid vehicles rely exclusively on the electric motor(s)during slow-speed operation.

Accepted Answer

Hybrid vehicles often use their electric motor(s) for propulsion during slow-speed operation to increase fuel efficiency and reduce emissions, switching to or combining with the internal combustion engine at higher speeds or for additional power.

Question 5

Engine power is transferred to an automatic transmission through a ______.
A)differential
B)U-joint
C)torque converter
D)constant velocity joint

Accepted Answer

Engine power is transferred to an automatic transmission through a torque converter, which allows the engine to spin somewhat independently of the transmission.

Question 6

Henry Ford's factory was the first to produce automobiles for sale to the public.

Accepted Answer

While Henry Ford significantly revolutionized the automobile manufacturing process, making cars more accessible to the general public through the assembly line method, it was not his factory that first produced automobiles for sale. Karl Benz's company, Benz & Cie., produced the Benz Patent-Motorwagen in 1885, which is considered the first automobile made available for purchase.

Question 7

Gasoline-powered cars have been around for over 100 years.

Accepted Answer

The first successful gasoline-powered car was built in 1885 by Karl Benz, making the technology over 100 years old.

Question 8

A crossover vehicle is typically a cross between a station wagon and a SUV.

Accepted Answer

Crossover vehicles, often referred to as CUVs (Crossover Utility Vehicles), combine characteristics of SUVs (such as higher seating and more cargo space) with the smoother ride and better fuel efficiency of a station wagon or sedan, making them a blend of the two vehicle types.

Question 9

In 1985, Congress passed the CAFE standards.

Accepted Answer

The Corporate Average Fuel Economy (CAFE) standards were first enacted by the United States Congress in 1975, not 1985, as part of the Energy Policy and Conservation Act to improve the average fuel economy of cars and light trucks (trucks, vans, and sport utility vehicles) sold in the United States.

Question 10

Which of the following is NOT a typical emission control system?
A)exhaust gas recirculation (EGR)
B)positive crankcase ventilation (PCV)
C)thermostatic expansion valve (TEV)
D)evaporative system (EVAP)

Accepted Answer

The thermostatic expansion valve (TEV) is part of an air conditioning system, not an emission control system. EGR, PCV, and EVAP are all designed to reduce vehicle emissions.

Question 11

CAFE refers to "car average federal emissions."

Accepted Answer

CAFE stands for Corporate Average Fuel Economy, which are regulations in the United States aimed at improving the average fuel economy of cars and light trucks (trucks, vans, and sport utility vehicles) sold in the market.

Question 12

Which of the following is NOT one of the strokes of a four-cycle engine?
A)intake
B)combustion
C)power
D)exhaust

Accepted Answer

Combustion is not considered a separate stroke in a four-cycle engine. The four strokes are intake, compression, power (or ignition/expansion), and exhaust. Combustion occurs during the power stroke when the fuel-air mixture is ignited.

Question 13

A RWD vehicle that is equipped with independent rear suspension has a rear differential and drive axle shafts similar to a FWD vehicle.

Accepted Answer

A RWD vehicle with independent rear suspension uses a rear differential to distribute power to the rear wheels through drive axle shafts, similar to the setup in a FWD vehicle, but the differential's placement and power source direction differ.

Question 14

In body-over-frame construction, the body is supported to the frame by large rubber mounts.

Accepted Answer

In body-over-frame construction, the body is indeed supported by the frame through large rubber mounts, which help to isolate noise, vibration, and harshness from the passenger compartment.

Question 15

Air-cooled engines are not generally used on modern cars because it is very difficult to maintain constant temperatures at the cylinders. If the cylinder temperature is not accurately controlled, the engine will not run efficiently.

Accepted Answer

Air-cooled engines struggle with maintaining consistent temperatures across all cylinders, which is crucial for efficient engine operation. Modern cars predominantly use water-cooled systems that more effectively manage engine temperatures, ensuring better performance and reliability.

Question 16

Unibody construction is typical in most modern trucks.

Accepted Answer

Most modern trucks use body-on-frame construction for increased durability and off-road capability, whereas unibody construction is more common in cars and crossovers.

Question 17

The condenser in an air-conditioning system is typically located under the dashboard inside the passenger compartment.

Accepted Answer

The condenser in an air-conditioning system is typically located at the front of the vehicle, near the radiator, to utilize airflow from the vehicle's forward motion to cool the refrigerant.

Question 18

In body-over-frame construction, the frame is the vehicle's foundation.

Accepted Answer

In body-over-frame construction, the frame serves as the vehicle's foundation, providing structural support upon which the body and other components are mounted.

Question 19

Unibody construction is typical in most modern automobiles.

Accepted Answer

Unibody construction, where the body and frame of the vehicle are a single piece, is common in modern automobiles because it reduces weight and manufacturing complexity, improving fuel efficiency and safety.

Question 20

What is the purpose of the valve train?
A)It connects a piston to the crankshaft
B)It supports the major parts of the engine
C)It converts reciprocating motion to rotary motion
D)It opens and closes the intake and exhaust valves of each cylinder

Accepted Answer

The valve train is responsible for the operation of the engine's valves, opening and closing the intake and exhaust valves at the correct times to allow air in and exhaust gases out of the cylinders.

Quiz 4: Automotive Systems