Klu Certificate Course Electric Vehicle Development

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1/60 Questions

Word Auto in Automobile is Derived from the _____ word autos, which means self.
- Greek
- Latin
- German
- Arabic

About This Quiz

This quiz in the KLU Certificate Course on Electric Vehicle Development assesses knowledge on automotive terminology and electric vehicle technology. It covers the basics of auto parts, assemblies, and systems, focusing on Tesla's use of AC motors.

Klu Certificate Course Electric Vehicle Development - Quiz

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2.

The word Mobile in Automobile is Derived from the _____ word mobile, which means moving.
- French
- Greek
- Hindi
- Arabic
Correct Answer

A. French

Explanation

The word "mobile" in "automobile" is derived from the French word "mobile," which means moving. This suggests that the term "automobile" originated from French and was likely borrowed into other languages, including English.

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3.

Smallest removable item on car or bike is _______.
- Part
- Assembly
- System
Correct Answer

A. Part

Explanation

The smallest removable item on a car or bike is a part. This refers to any individual component or piece that can be detached from the vehicle, such as a bolt, screw, or small accessory. Unlike an assembly or system, which consist of multiple parts combined together, a single part can be easily removed or replaced without affecting the overall functioning of the vehicle.

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4.

______ is a Set of fitted parts designed to complete a function.
- Part
- Assembly
- System
Correct Answer

A. Assembly

Explanation

An assembly is a set of fitted parts designed to complete a function. It refers to the process of combining individual components or parts together to create a functioning whole. This term is commonly used in manufacturing and engineering industries, where multiple parts are assembled to create a finished product or system. Assemblies can range from simple to complex, depending on the number and complexity of the parts involved.

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5.

______ is Group of related parts and assemblies that performs a specific job
- System
- Part
- Assembly
Correct Answer

A. System

Explanation

A system is a group of related parts and assemblies that work together to perform a specific job. It is a combination of different components that are interconnected and function as a whole to achieve a particular purpose or goal. A system can be seen as a unified entity that is greater than the sum of its individual parts, as it relies on the collaboration and interaction of these parts to carry out its intended function.

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6.

Tesla uses ____ Motor in their vehicles
- AC
- DC
- BLDC
- PMDC
Correct Answer

A. AC

Explanation

Tesla uses AC (alternating current) motors in their vehicles. AC motors are commonly used in electric vehicles because they are more efficient, have a higher power-to-weight ratio, and provide smoother acceleration compared to DC (direct current) motors. AC motors also allow for regenerative braking, which helps to recharge the battery while decelerating. Additionally, AC motors are easier to control and maintain, making them a preferred choice for Tesla's electric vehicles.

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7.

________ is a collection of components and linkages that allow a vehicle to follow a particular course.
- Suspension
- Brake
- Steering
- Power Train
Correct Answer

A. Steering

Explanation

Steering is the correct answer because it refers to the system that enables a vehicle to change direction and follow a specific course. It consists of various components and linkages such as the steering wheel, steering column, and steering gear that work together to control the movement of the front wheels. By turning the steering wheel, the driver can change the direction of the vehicle, allowing it to follow a desired path.

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8.

Figure represents ____________.
- Bending
- Torsion
- U Shaping
- Loading
Correct Answer

A. Bending

Explanation

The figure represents bending. Bending refers to the deformation of a material due to the application of a bending moment, causing it to curve or flex. In this case, the figure likely shows a beam or a similar structure that is being subjected to a bending force, resulting in a curved shape.

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9.

Figure represents________ .
- Bending
- Torsion
- Molding
- S Shaping
Correct Answer

A. Torsion

Explanation

The figure in the question represents torsion. Torsion is a twisting or rotating force that is applied to an object. In the figure, it appears that there is a twisting motion happening, which is indicative of torsion.

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10.

Channel Section have Good Resistance towards ___________ .
- Bending
- Torsion
- Bending & Torsion
Correct Answer

A. Bending

Explanation

Channel sections have good resistance towards bending. This is because the shape of a channel section, with its flanges and web, provides structural strength and rigidity. The flanges help to distribute the bending forces along the length of the channel, while the web helps to resist deflection and maintain the shape of the section. This makes channel sections suitable for applications where bending loads are present, such as in beams, frames, and supports.

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11.

Tubular Section have Good Resistance towards __________ .
- Torsion
- Bending
- Bending & Torsion
Correct Answer

A. Torsion

Explanation

Tubular sections have good resistance towards torsion. This means that they are able to withstand twisting forces without easily deforming or breaking. The shape of tubular sections, with their hollow cylindrical structure, provides strength and stability against torsional loads. This makes them suitable for applications where torsion is a significant factor, such as in the construction of bridges, cranes, and other structures that experience twisting forces.

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12.

Box Section have Good Resistance towards ________ .
- Bending
- Torsion
- Bending & Torsion
Correct Answer

A. Bending & Torsion

Explanation

Box sections have good resistance towards both bending and torsion. This is because the shape of a box section provides structural stability and rigidity, making it less prone to bending and twisting forces. The closed shape of the box section helps distribute the applied loads evenly, reducing the stress concentration on specific points. This makes box sections suitable for applications where both bending and torsion forces are present, such as in the construction of beams, columns, and frames.

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13.

Cast surfaces have good finishing.
- True
- False
Correct Answer

A. False

Explanation

The statement "Cast surfaces have good finishing" is incorrect. Cast surfaces typically have a rough and uneven texture, which is a result of the casting process. This is because the molten material is poured into a mold and solidifies, resulting in a surface that may require additional finishing processes such as sanding or polishing to achieve a smooth and polished appearance. Therefore, the correct answer is False.

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14.

Figure represents ________ Chassis.
- Ladder Frame
- Backbone Frame
- Tubular Frame
- Monocoque
Correct Answer

A. Ladder Frame

Explanation

The figure represents a Ladder Frame chassis. A ladder frame chassis is a type of vehicle frame structure that consists of two parallel longitudinal rails (or beams) connected by several cross members. This design provides excellent strength and durability, making it suitable for heavy-duty vehicles like trucks and SUVs. The name "ladder frame" comes from the resemblance of the structure to a ladder, with the longitudinal rails acting as the sides of the ladder and the cross members as the rungs. This type of chassis provides good off-road capabilities and is commonly used in rugged terrain vehicles.

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15.

Figure represents ________ Chassis.
- Backbone Frame
- Ladder Frame
- Tubular Space
- Monocoque
Correct Answer

A. Backbone Frame

Explanation

The figure represents a Backbone Frame chassis. A Backbone Frame chassis is a type of chassis design where a single large structural member runs down the center of the vehicle, providing support and strength to the overall structure. This design is commonly used in small cars and allows for a lightweight and compact chassis while still maintaining rigidity and stability.

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16.

Figure represents ________ Chassis.
- Ladder Frame
- Monocoque
- Tubular Space
- Backbone Frame
Correct Answer

A. Monocoque

Explanation

The figure represents a Monocoque Chassis. A monocoque chassis is a type of construction where the body and the chassis are integrated into a single structure. This type of chassis provides excellent rigidity and strength, as the body panels contribute to the overall structural integrity of the vehicle. Monocoque chassis are commonly used in modern cars and provide better handling and safety compared to other types of chassis.

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17.

One 12 V Lead Acid Battery consists of ____, ____ Volt Cells
- 6,2
- 2,6
- 3,4
- 4,3
Correct Answer

A. 6,2

Explanation

A 12 V Lead Acid Battery consists of 6 cells, with each cell having a voltage of 2 volts. When these cells are connected in series, their voltages add up to give a total voltage of 12 volts.

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18.

Cells are connected in Series
- Increasing current rating
- Increasing voltage rating
- Increasing life
Correct Answer

A. Increasing voltage rating

Explanation

When cells are connected in series, the voltage rating of the overall circuit increases. This is because the voltage of each individual cell adds up to create a higher total voltage. Therefore, by connecting cells in series, the voltage rating of the circuit is increased.

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19.

Why we use integral frame?
- Less weight
- Easy for mass production
- Compact Assembly
- All of the above
Correct Answer

A. All of the above

Explanation

The integral frame is used for multiple reasons. Firstly, it helps in reducing the weight of the product, making it lighter and more portable. Secondly, it is easy to mass-produce, allowing for efficient and cost-effective manufacturing. Lastly, the compact assembly of the integral frame ensures that the product takes up less space, making it easier to store and transport. Therefore, all of the given options are valid reasons for using an integral frame.

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20.

Which of the material is having high strength / weight ratio
- Aluminium
- Steel
- Carbon Fiber
- Plastic
Correct Answer

A. Carbon Fiber

Explanation

Carbon fiber is known for its high strength-to-weight ratio. It is a lightweight material that is incredibly strong and rigid. The carbon fibers are woven together and combined with a polymer resin to create a composite material that is both lightweight and strong. This makes carbon fiber an ideal choice for applications where strength is important but weight needs to be minimized, such as in aerospace, automotive, and sporting goods industries.

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21.

Which part will surely tell that given motor is DC motor and not an AC type?
- Winding
- Shaft
- Commutator
- Stator
Correct Answer

A. Commutator

Explanation

The commutator is a crucial component in a DC motor that helps in converting alternating current (AC) to direct current (DC). It consists of a rotating cylinder with metal segments that are connected to the motor's armature windings. As the commutator rotates, it reverses the direction of the current in the armature windings, ensuring that the magnetic poles of the rotor align with the stator's magnetic field. This process is essential for the operation of a DC motor and is not found in AC motors, making the commutator a clear indication that the given motor is a DC motor.

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22.

____ is related to ergonomics
- Comfort
- Safety
- Aesthetics
- All of the above
Correct Answer

A. Comfort

Explanation

Comfort is related to ergonomics because ergonomics is the study of designing and arranging products, systems, and environments to fit the needs and capabilities of the people who use them. Comfort is an important aspect of ergonomics as it focuses on providing a comfortable and supportive environment for individuals, ensuring that they can perform tasks efficiently and without discomfort or strain. By considering comfort in the design process, ergonomics aims to enhance overall well-being and productivity while reducing the risk of musculoskeletal disorders and other health issues.

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23.

___ is best conductor of heat given below.
- Copper
- Aluminium
- Steel
Correct Answer

A. Copper

Explanation

Copper is the best conductor of heat among the options provided. This is because copper has a high thermal conductivity, meaning it can transfer heat efficiently. It has a high density of free electrons, which are responsible for carrying heat energy through the material. Copper is commonly used in electrical wiring and heat exchangers due to its excellent thermal conductivity. Aluminium and steel, while also good conductors, have lower thermal conductivities compared to copper.

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24.

___ is best electric conductor mostly used.
- Copper
- Aluminium
- Tungsten
- Steel
Correct Answer

A. Copper

Explanation

Copper is the best electric conductor mostly used because it has a high electrical conductivity. It allows electric current to flow through it with minimal resistance, making it ideal for various electrical applications. Copper is commonly used in wiring, electrical cables, and electrical components due to its excellent conductivity properties. It also has good thermal conductivity, making it suitable for applications that require efficient heat transfer.

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25.

_____ Motor is used in Ceiling Fan.
- 3 Phase Induction
- 1 Phase Induction
- Hub Motor
- BLDC Hub Motor
Correct Answer

A. 1 Phase Induction

Explanation

Ceiling fans typically use a 1 Phase Induction motor. This type of motor is commonly used in household appliances due to its simplicity, reliability, and cost-effectiveness. It operates on a single-phase power supply, making it suitable for residential use. The 1 Phase Induction motor provides the necessary torque to rotate the fan blades and create airflow, making it an ideal choice for ceiling fans.

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26.

______ battery is having power/weight ratio among the following.
- Lead Acid
- Lithium Ion
- Lead Acid Gel
- Metal Oxide
Correct Answer

A. Lithium Ion

Explanation

Lithium Ion battery has the highest power/weight ratio among the given options. This means that it can deliver more power per unit weight compared to the other batteries listed. Lithium Ion batteries are known for their high energy density, lightweight design, and ability to provide long-lasting power. They are commonly used in portable electronic devices like smartphones and laptops, where weight and efficiency are important factors.

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27.

Tesla uses _____company cell in their Li-Ion batteries.
- Samsung
- Panasonic
- LG
- Tesla
Correct Answer

A. Panasonic

Explanation

Tesla uses Panasonic cells in their Li-Ion batteries. This information is widely known and has been confirmed by Tesla themselves. Panasonic has been a long-standing partner of Tesla and supplies the majority of the battery cells used in Tesla vehicles. The collaboration between Tesla and Panasonic has been crucial in the development and production of high-quality batteries that power Tesla's electric vehicles.

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28.

______ is the quantity we get if we take the derivative of acceleration in time domain.
- Jerk
- Force
- Velocity
- Jerak
Correct Answer

A. Jerk

Explanation

Jerk is the quantity we get if we take the derivative of acceleration in the time domain. Jerk is a measure of the rate at which acceleration changes over time. It describes how quickly an object's acceleration is changing, indicating the object's responsiveness to external forces. This concept is important in physics and engineering, particularly in the study of motion and the design of vehicles and machinery.

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29.

How many bits in a byte ?
- 8
- 4
- 14
- 12
Correct Answer

A. 8

Explanation

A byte is a unit of digital information that consists of 8 bits. Each bit can have a value of either 0 or 1, and when combined, they form a byte. Therefore, the correct answer is 8.

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30.

Computer calculates numbers in ____ mode
- Octal
- Binary
- Decimal
Correct Answer

A. Binary

Explanation

Computers calculate numbers in binary mode because the binary system is the fundamental system used in digital computers. Binary mode means that the computer processes and represents numbers using only two symbols, 0 and 1. This is because computers are built using electronic circuits that can only understand and manipulate binary signals. Octal and decimal are also commonly used number systems, but they are ultimately converted to binary for processing by the computer.

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31.

Select the smallest memory type
- Terabyte
- Kilobyte
- Megabyte
- Gigabyte
Correct Answer

A. Kilobyte

Explanation

The smallest memory type is the kilobyte. Memory sizes are typically measured in bytes, and the kilobyte is the smallest unit among the options given. A kilobyte is equal to 1024 bytes, while a megabyte is 1024 times larger, a gigabyte is 1024 times larger than a megabyte, and a terabyte is 1024 times larger than a gigabyte. Therefore, the kilobyte is the smallest memory type among the given options.

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32.

Capacitor allows ____ and blocks ____
- AC,DC
- DC,AC
Correct Answer

A. AC,DC

Explanation

A capacitor allows the flow of alternating current (AC) while blocking the flow of direct current (DC). This is because a capacitor can store and release electrical energy in the form of AC, but it cannot store a steady flow of DC. Therefore, when AC is applied to a capacitor, it allows the current to pass through, while blocking the flow of DC.

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33.

Single phase induction motor is self starting.
- True
- False
Correct Answer

A. False

Explanation

Single phase induction motors are not self-starting. They require an external force to start rotating, such as a capacitor or an auxiliary winding. Unlike three-phase induction motors, which are self-starting due to the rotating magnetic field produced by the three-phase power supply, single phase induction motors need additional components to create a rotating magnetic field and initiate rotation. Therefore, the statement that single phase induction motors are self-starting is false.

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34.

What's the toughest part of building an electric vehicle?
- Battery
- Body
- Wheels
Correct Answer

A. Battery

Explanation

The toughest part of building an electric vehicle is the battery. This is because the battery is responsible for storing and supplying the electrical energy required to power the vehicle. Designing and manufacturing a battery that can provide sufficient range, durability, and reliability while also being compact and lightweight is a significant challenge. Additionally, the cost of batteries can be high, making it a major factor in the overall cost of an electric vehicle.

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35.

Coil springs absorb shocks by
- Bending
- Twisting
- Compression
- Tension
Correct Answer

A. Compression

Explanation

Coil springs absorb shocks by compression. When a force is applied to the spring, it is compressed, meaning that the coils are pushed closer together. This compression allows the spring to absorb and store the energy from the shock, reducing the impact felt. Compression is a common method used in various applications, such as car suspensions, to provide a cushioning effect and dampen shocks.

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36.

The characteristic that provides an output with respect to the relation with the input is called as
- Calibration of a system
- Response of a system
- Characteristic relation of a system
- Instrumentation of a system
Correct Answer

A. Response of a system

Explanation

The characteristic that provides an output with respect to the relation with the input is called the response of a system. This means that when an input is given to a system, the system will produce an output in response to that input. The response of a system can be measured and analyzed to understand how the system behaves and how it is affected by different inputs. It is an important aspect of studying and understanding the behavior of systems in various fields such as engineering, physics, and biology.

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37.

The emf of the dry cell is about
- 0 V
- 0.5 V
- 1 V
- 1.5 V
Correct Answer

A. 1.5 V

Explanation

The correct answer is 1.5 V. This is because the emf (electromotive force) of a dry cell is the maximum potential difference it can provide when there is no current flowing through it. A dry cell typically has a voltage of 1.5 V, which is the potential difference between its positive and negative terminals.

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38.

Most widely used brakes are
- Hydraulic
- Air
- Electric
- Pneumatic
Correct Answer

A. Hydraulic

Explanation

Hydraulic brakes are the most widely used type of brakes because they offer several advantages. They use a fluid-filled system to transfer force from the brake pedal to the brake pads, providing a reliable and efficient braking mechanism. Hydraulic brakes are known for their excellent stopping power, responsiveness, and ability to handle high temperatures. They are commonly used in various vehicles, including cars, trucks, motorcycles, and bicycles. Additionally, hydraulic brakes require less maintenance compared to other brake types and offer smooth and consistent braking performance.

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39.

Coefficient of Drag is least for
- Circular Cylinder
- Square Cylinder
- Oval Cylinder
- Wing
Correct Answer

A. Wing

Explanation

The coefficient of drag is least for a wing because it is designed to generate lift and reduce drag. The shape of a wing, with its curved upper surface and tapered trailing edge, allows for smooth airflow over the surface, resulting in reduced drag. In contrast, a circular cylinder, square cylinder, and oval cylinder have more surface area and less streamlined shapes, leading to higher drag coefficients.

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40.

_________ Load has higher factor of safety as compared to ______ Load.
- Dynamics , Statistic
- Statistic , Dynamic
Correct Answer

A. Dynamics , Statistic

Explanation

The given correct answer states that "Dynamics load has a higher factor of safety as compared to Statistic load." This means that when considering the factor of safety, which is a measure of how much stronger a structure or system is compared to the maximum load it can handle, dynamics load is more secure than statistic load. In other words, dynamics load has a larger margin of safety and is less likely to cause failure or damage compared to statistic load.

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41.

Odometer is an instrument used for measurement of
- Distance
- Speed
- Power
- Outer diameter
Correct Answer

A. Distance

Explanation

An odometer is an instrument used for measuring distance traveled. It is commonly found in vehicles and displays the total distance covered by the vehicle since it was first used. The odometer works by tracking the rotations of the vehicle's wheels and converting it into distance. It is a useful tool for keeping track of mileage and determining the efficiency of a vehicle.

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42.

_________ Batter has less maintenance.
- Gel
- Lead Acid
Correct Answer

A. Gel

Explanation

Gel batteries have less maintenance compared to lead acid batteries. This is because gel batteries are sealed and do not require regular checks for water levels or electrolyte maintenance like lead acid batteries. Gel batteries are also less prone to spillage and can be mounted in any position without the risk of acid leakage. These factors contribute to the lower maintenance requirements of gel batteries.

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43.

Government of India launched the National Electric Mobility Mission Plan (NEMMP) ______ in 2013
- 2020
- 2030
- 2025
- 2018
Correct Answer

A. 2020

Explanation

The correct answer is 2020. The National Electric Mobility Mission Plan (NEMMP) was launched by the Government of India in 2013 with the aim of promoting electric mobility in the country. The plan set targets for the adoption of electric vehicles and the establishment of charging infrastructure. The plan aimed to achieve 6-7 million sales of hybrid and electric vehicles by 2020, thus indicating that the plan was set to be implemented until that year.

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44.

Which of these were or are used in automobiles to provide suspension.
- Leaf springs
- Coil springs
- Both
Correct Answer

A. Both

Explanation

Both leaf springs and coil springs have been used in automobiles to provide suspension. Leaf springs are long, curved strips of metal that are stacked on top of each other and attached to the vehicle's frame. They provide support and absorb shocks by flexing when the vehicle encounters bumps or uneven surfaces. Coil springs, on the other hand, are helical-shaped springs made of steel wire. They compress and expand to absorb shocks and provide a smoother ride. Both types of springs have been used in different types of vehicles and suspension systems throughout automotive history.

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45.

Figure represents _______ Motor.
- BLDC
- PMDC
- Brushed Motor
Correct Answer

A. BLDC

Explanation

The figure represents a BLDC (Brushless DC) motor. BLDC motors are commonly used in various applications such as electric vehicles, drones, and industrial machinery. Unlike brushed motors, BLDC motors do not have brushes and commutators, which results in improved efficiency, higher torque, and longer lifespan. They are also known for their compact size, low maintenance, and precise control, making them a popular choice in many industries.

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46.

Figure represents _______ spring.
- Torsion Spring
- Compression Spring
Correct Answer

A. Torsion Spring

Explanation

The figure represents a torsion spring because it shows a coiled structure that is twisted around its axis. Torsion springs are designed to store and release rotational energy, and they are commonly used in various applications such as door hinges, vehicle suspensions, and mechanical watches. The coiled shape and the twisting motion depicted in the figure are characteristic of torsion springs, making it the correct answer.

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47.

In Passive Cell Balancing ______ is used.
- R- Resistor
- C- Capacitor
- L - Inductor
Correct Answer

A. R- Resistor

Explanation

Passive cell balancing is a method used to equalize the voltage of different cells in a battery pack. In this method, resistors are used to dissipate excess charge from cells with higher voltage, allowing them to reach the same voltage level as cells with lower voltage. By using resistors, the energy is converted into heat and dissipated, ensuring that all cells in the battery pack are balanced.

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48.

Silicon addition increases strength without lowering the ductility.
- True
- False
Correct Answer

A. True

Explanation

The addition of silicon to a material can increase its strength without compromising its ductility. This is because silicon can form solid solutions with many metals, resulting in improved mechanical properties. The presence of silicon atoms can strengthen the material's crystal lattice structure, making it more resistant to deformation. At the same time, silicon can also enhance the material's ability to deform plastically, allowing it to retain its ductility. Therefore, the statement is true.

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49.

A gear meshes with another gear and a sprocket meshes with another sprocket.
- True
- False
Correct Answer

A. False

Explanation

Gears and sprockets are not interchangeable and cannot mesh with each other. Gears have teeth that mesh with the teeth of other gears, while sprockets have teeth that mesh with the links of a chain. Therefore, the statement that a gear meshes with another gear and a sprocket meshes with another sprocket is false.

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