Electric Vehicle 1st Assessment

Battery Electric Vehicles (BEVs) are powered by rechargeable batteries. These batteries store electrical energy and provide it to the electric motor, which propels the vehicle. Unlike hybrid vehicles, BEVs do not have an internal combustion engine and therefore do not require gasoline as a power source. Instead, they rely solely on the energy stored in their rechargeable batteries. Another option, regenerative braking system, is a technology that allows the vehicle to recover and store some of the energy that is normally lost during braking. However, this system alone cannot be considered as the primary power source for BEVs.

The correct answer is Both A&B. Hybrid vehicles have two power sources: a gasoline engine and a battery. The gasoline engine provides power to propel the vehicle, while the battery supplies additional power and assists in improving fuel efficiency. The combination of these two power sources allows hybrid vehicles to switch between using gasoline and electric power, resulting in reduced emissions and better fuel economy. Additionally, hybrid vehicles often use regenerative braking, which converts kinetic energy into electrical energy to recharge the battery.

Regeneration refers to the process of generating electricity during deceleration and braking. This means that when a vehicle slows down or comes to a stop, the kinetic energy is converted into electrical energy and stored in the battery. This helps in recharging the battery and increasing the overall efficiency of the vehicle.

The correct answer is "Initial Graphics Exchange Specification". This is a widely used file format that allows the exchange of 2D and 3D design data between different computer-aided design (CAD) systems. It was developed to address the need for a standardized format that can be used across different platforms and software applications. The IGES format ensures that design data can be accurately transferred and interpreted, enabling collaboration and interoperability between different CAD systems.

Petrol and diesel engines have a negative impact on the environment because they contribute to the depletion of natural resources and the increase in CO2 emissions. These engines rely on fossil fuels, which are finite resources that are being consumed at a rapid rate. Additionally, the combustion of these fuels releases CO2 into the atmosphere, contributing to the greenhouse effect and climate change. Therefore, both options A and B are correct as they accurately describe the environmental effects of petrol and diesel engines.

Level-I charging stations typically provide a maximum voltage of 120 volts. This level of charging is commonly used in residential settings and is suitable for overnight charging. It is a slower charging option compared to higher levels, but it is convenient for daily use and can fully charge most electric vehicles within 8-12 hours.

PHEVs, or Plug-in Hybrid Electric Vehicles, have the ability to recharge their battery through both regenerative braking and plugging in. Regenerative braking is a process where the kinetic energy of the vehicle is converted into electrical energy and stored in the battery while the vehicle is decelerating or braking. On the other hand, plugging in refers to the act of physically connecting the vehicle to an external power source, such as a charging station or an electrical outlet, to recharge the battery. Therefore, the correct answer is both A and B.

The normal tire pressure of a car is typically between 30-35 psi. This range is recommended by car manufacturers and tire manufacturers as it provides optimal performance, handling, and fuel efficiency. Maintaining the correct tire pressure is important for ensuring even wear on the tires, improving traction and stability, and preventing blowouts. It is important to regularly check and adjust the tire pressure to ensure safe and efficient driving.

The voltage provided by Level 2 charging is 240V. This level of charging is commonly used for electric vehicles and provides a higher voltage and faster charging speed compared to Level 1 charging, which typically operates at 120V. Level 2 chargers are often installed at home or at public charging stations and can fully charge an electric vehicle in a shorter amount of time.

The section width of a tire is the measurement from one sidewall to the other sidewall, expressed in millimeters. In this case, the section width is given as 225. The aspect ratio is the ratio of the tire's section height to its section width. It is expressed as a percentage. In this case, the aspect ratio is given as 50. To calculate the section height, we need to multiply the section width by the aspect ratio and divide by 100. Therefore, the section height is (225 * 50) / 100 = 112.5.

The given tyre code "205/65R15" represents the dimensions of the tyre. The first number, "205", refers to the width of the tyre in millimeters. The second number, "65", represents the aspect ratio of the tyre, which is the ratio of the tyre's height to its width. The "R" indicates that the tyre is a radial tyre. Finally, the number "15" indicates the diameter of the wheel in inches. To find the outer diameter of the tyre, we need to calculate the overall height of the tyre by adding the sidewall height to the diameter of the wheel. Therefore, the correct answer is 647.5.

The correct answer is 1 kg ms-2. This is because the unit of force, which is the newton (N), is defined as the product of mass (kg) and acceleration (ms-2). Therefore, 1 N is equal to 1 kg ms-2.

In Solidworks, the color black indicates a fully defined line. This means that the line has been fully specified with dimensions or constraints, and it will not change or move when the design is modified. Blue lines typically indicate construction geometry or temporary entities, yellow lines indicate under-defined or over-defined geometry, and the absence of any color indicates that the line is not fully defined. Therefore, the correct answer is black.

If there is no net force acting on the body, then its acceleration is zero. This is because according to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. If there is no net force, it means that all the forces acting on the body are balanced and cancel each other out, resulting in zero acceleration. Therefore, the correct answer is zero.

Elon Musk is the correct answer because he is the founder, CEO, and lead designer of Tesla, Inc., an electric vehicle and clean energy company. While Nikola Tesla was a renowned inventor and engineer, he did not invent the Tesla car or the company itself. Netwon is unrelated to the invention of Tesla, and Dieter Zetsche is a former executive of Daimler AG, not associated with Tesla.

The correct answer is .prt;sldprt. This file format is used for Part files in Solidworks. The ".prt" extension represents the generic part file format, while the ".sldprt" extension is specific to Solidworks. These file formats allow users to create and save individual parts within the Solidworks software. The other options (.igs and .psd) are file formats used for different purposes and are not specific to Solidworks.

Both electric and hybrid vehicles use a high-voltage battery. Electric vehicles rely solely on the high-voltage battery to power the vehicle, while hybrid vehicles use a combination of the high-voltage battery and an internal combustion engine. The high-voltage battery in these vehicles is responsible for providing the necessary power to drive the vehicle's electric motor and other electrical components.

A high-voltage cable can be identified by its orange color. This is a common industry standard for marking high-voltage cables to alert individuals of the potential danger associated with them. The orange color serves as a visual indicator to ensure that people are aware of the presence of high voltage and take necessary precautions when working with or around these cables.

The Hennessey Venom F5 is considered the fastest car till now. It has a top speed of 301 mph, which is higher than any other car in the given options. The Koenigsegg Agera RS has a top speed of 278 mph, the Hennessey Venom GT has a top speed of 270 mph, and the Bugatti Chiron has a top speed of 261 mph. Therefore, the Hennessey Venom F5 is the correct answer as it has the highest top speed among the given cars.

This question is asking which domain the person wants to choose in an Electric Vehicle Course. The correct answer is that they can choose any of the options provided: Steering System, Braking, Suspension, Design, and Power Transmission. This suggests that the course covers various aspects of electric vehicles, allowing students to specialize in different domains according to their interests and career goals.

The correct answer is "Linear". In SolidWorks, there are different types of patterns that can be created. One of these types is the linear pattern, which allows for the creation of multiple instances of a feature or component in a straight line. This pattern is useful for creating evenly spaced features or components along a linear path, such as a series of holes or a row of bolts. Other types of patterns in SolidWorks include circular patterns, which create instances in a circular arrangement around a central point, and mirror patterns, which create mirrored copies of features or components across a specified plane.