Hero Electric Innovation Challenge Online Test Assessment
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The energy Density of Conventional Lead acid Batteries are ----------that of Modern Lithium Ion Battery.
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Higher
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Lower
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Same
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None of these
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- 2.
What is the Unit for the Capacity of Battery?
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Watt
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Ampere-Hour
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Ohm
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Ampere
Correct Answer
A. Ampere-HourExplanation
The unit for the capacity of a battery is Ampere-Hour. This unit represents the amount of electrical charge that a battery can deliver or store over time. It is a measure of the battery's capacity to provide a certain amount of current for a specific duration.Rate this question:
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- 3.
The Watt-Hour of a Battery is Calculated by_______.
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V/Ah
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I*Ah
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V*Ah
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Ah/V
Correct Answer
A. V*AhExplanation
The correct answer is V*Ah. The Watt-Hour of a battery is calculated by multiplying the voltage (V) of the battery by the ampere-hour (Ah) rating of the battery. This calculation gives the total amount of energy that the battery can deliver over a specific period of time.Rate this question:
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- 4.
If 25Ah Battery is Discharged by a Load of 500 Watt rated at 48v, What will be the Backup in Hours
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2.4 Hours
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2.6 Hours
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2.7 Hours
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3 Hours
Correct Answer
A. 2.4 HoursExplanation
The backup in hours can be calculated by dividing the battery capacity (25Ah) by the load (500W) and multiplying it by the battery voltage (48V). Therefore, the backup in hours would be (25Ah / 500W) * 48V = 2.4 hours.Rate this question:
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- 5.
If for a 20Ah battery the C-rate is 0.5C, What is recommended Discharge Current that we should Draw from that Battery.
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10 A
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11 A
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40 A
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15 A
Correct Answer
A. 10 AExplanation
The C-rate is a measure of the rate at which a battery is charged or discharged relative to its capacity. In this case, the C-rate is 0.5C, which means that the recommended discharge current should be half of the battery's capacity. The battery has a capacity of 20Ah, so half of that would be 10A. Therefore, the recommended discharge current is 10A.Rate this question:
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- 6.
The BMS of the battery is required for
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Protection
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Cell Balancing
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Both (a) and (b)
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None of the above
Correct Answer
A. Both (a) and (b)Explanation
The BMS (Battery Management System) of the battery is required for both protection and cell balancing. Protection refers to the monitoring and control of various parameters such as voltage, current, and temperature to prevent overcharging, over-discharging, and overheating, which can damage the battery or pose safety risks. Cell balancing, on the other hand, involves equalizing the charge levels of individual cells within a battery pack to ensure optimal performance and longevity. Therefore, the correct answer is both (a) and (b).Rate this question:
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- 7.
Which of the following is not a Li-ion Chemistry.
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NMC
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LFP
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VRLA
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LMO
Correct Answer
A. VRLAExplanation
VRLA (Valve Regulated Lead Acid) is not a Li-ion (Lithium-ion) chemistry. Li-ion batteries use lithium ions to store and release energy, whereas VRLA batteries use lead-acid chemistry. NMC (Nickel Manganese Cobalt), LFP (Lithium Iron Phosphate), and LMO (Lithium Manganese Oxide) are all examples of Li-ion chemistries commonly used in rechargeable batteries.Rate this question:
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- 8.
For a Battery Pack, if 14 cells of 3.7v 24 Ah are connected in series, what will be the resultant Voltage and Ah of Battery Pack.
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51v 24Ah
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51v 48Ah
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60v 12Ah
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51v 12Ah
Correct Answer
A. 51v 24AhExplanation
When cells are connected in series, the voltage of the battery pack increases while the capacity remains the same. In this case, since there are 14 cells of 3.7v each connected in series, the resultant voltage of the battery pack will be 14 x 3.7v = 51v. The capacity of each cell is 24 Ah, and since the cells are connected in series, the capacity of the battery pack will remain the same at 24 Ah. Therefore, the correct answer is 51v 24Ah.Rate this question:
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- 9.
Which of the following terms are related to Battery
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SOC
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SOH
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DOD
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All of the above
Correct Answer
A. All of the aboveExplanation
SOC stands for State of Charge, which refers to the current amount of charge present in a battery relative to its maximum capacity. SOH stands for State of Health, which represents the overall condition and performance capability of a battery. DOD stands for Depth of Discharge, which indicates the amount of battery capacity that has been used relative to its maximum capacity. All of these terms are related to batteries and are used to measure and assess their performance and capacity.Rate this question:
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- 10.
If a Motor rated at 48v draws 17A current from the battery, the Mechanical output of the motor at 85% efficiency is
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816 Watt
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694 Watt
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690 Watt
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800 Watt
Correct Answer
A. 694 WattExplanation
The mechanical output of the motor can be calculated by multiplying the voltage (48V) by the current (17A) and the efficiency (85%). Therefore, the calculation would be: 48V x 17A x 0.85 = 694 Watt.Rate this question:
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- 11.
Which of the Following sensors are used in BLDC motor for detecting Direction
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Hall sensor
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Torque Sensor
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Accelerometer
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None of the above
Correct Answer
A. Hall sensorExplanation
Hall sensor is used in BLDC motors for detecting the direction.Rate this question:
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- 12.
Which certifying Body in India certifies Electric Vehicles?
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ARAI
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ICAT
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BIS
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Both a & b
Correct Answer
A. Both a & bExplanation
Both ARAI and ICAT are certifying bodies in India that certify electric vehicles.Rate this question:
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- 13.
In Electric Vehicles DC-DC converter is used for
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Lights
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Controlling Motor
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Both (a) and (b)
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None of the above
Correct Answer
A. LightsExplanation
The DC-DC converter in electric vehicles is used for controlling lights. This converter is responsible for converting the high voltage DC power from the battery into the lower voltage DC power required for operating the lights in the vehicle. It ensures that the lights receive the appropriate voltage and current for their operation, thereby enabling efficient and reliable lighting functionality in electric vehicles.Rate this question:
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- 14.
If the Wheel rpm of a scooter is 470rpm, what will be the Speed assuming a tyre radius of 201mm
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35.5kmph
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37.5 kmph
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40kmph
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45kmph
Correct Answer
A. 35.5kmphExplanation
The speed of the scooter can be calculated using the formula: Speed = 2πr × RPM, where r is the radius of the tire and RPM is the wheel rpm. Substituting the given values, we get Speed = 2 × 3.14 × 0.201 × 470 = 35.5 kmph.Rate this question:
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- 15.
The full form of MCB is
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Mono Circuit Breaker
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Miniature Circuit Breaker
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Multi Circuit Breaker
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None of the above
Correct Answer
A. Miniature Circuit BreakerExplanation
MCB stands for Miniature Circuit Breaker. This device is used to protect electrical circuits from overloads and short circuits. It automatically interrupts the flow of electricity when it detects a fault, preventing damage to the circuit and potential hazards such as fire or electrocution. MCBs are compact in size and are commonly used in residential and commercial buildings. They are designed to trip quickly in case of an electrical fault, providing efficient and reliable protection for electrical systems.Rate this question:
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- 16.
Which Scheme in India was created for promoting electric Vehicles?
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SWAYAM
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FAME
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Both (a) and (b)
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None of the above
Correct Answer
A. FAMEExplanation
FAME (Faster Adoption and Manufacturing of (Hybrid &) Electric Vehicles) is a scheme in India that was created for promoting electric vehicles. It provides financial incentives to both buyers and manufacturers of electric vehicles in order to accelerate their adoption and manufacturing in the country. The scheme aims to reduce dependence on fossil fuels, decrease vehicular emissions, and contribute to a cleaner and greener environment.Rate this question:
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- 17.
Two wheeler safety norms in the current year include following
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ABS
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CBS
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Day Light running
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All of above
Correct Answer
A. All of aboveExplanation
The correct answer is "All of above" because two-wheeler safety norms in the current year include all of the mentioned features - ABS (Anti-lock Braking System), CBS (Combined Braking System), and Daylight Running lights. These safety features are implemented to enhance the safety of two-wheeler riders and reduce the risk of accidents. ABS prevents the wheels from locking up during sudden braking, CBS distributes braking force between front and rear wheels, and Daylight Running lights improve visibility of the vehicle during daytime.Rate this question:
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- 18.
CVT Transmission has following benefits
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Acceleration
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Good cornering
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Good braking
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Bad Fuel Economy
Correct Answer
A. AccelerationExplanation
CVT transmission provides better acceleration compared to traditional transmissions because it allows for seamless gear shifting, ensuring that the engine operates at its optimal RPM range. This enables the vehicle to accelerate more quickly and smoothly.Rate this question:
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- 19.
LED Lamps used in Automotive for following
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Low Power consumption
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Day time Running
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Style
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All of above
Correct Answer
A. All of aboveExplanation
LED lamps used in automotive have several advantages, including low power consumption, which helps to conserve energy and extend the battery life of the vehicle. They are also commonly used for daytime running lights, providing increased visibility and safety on the road. Additionally, LED lamps offer a stylish and modern look to the vehicle, enhancing its overall appearance. Therefore, the correct answer is that LED lamps are used in automotive for all of the above reasons.Rate this question:
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- 20.
The Indian driving cycle for 2 & 3 Wheeler have speed capping at
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90 kmph
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50 kmph
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42 kmph
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140 kmph
Correct Answer
A. 42 kmphExplanation
The Indian driving cycle for 2 & 3 wheelers has a speed capping at 42 kmph. This means that the maximum speed allowed for these vehicles during the driving cycle is 42 kmph. This speed limit is imposed to ensure safety on the roads and to prevent accidents. By setting a lower speed limit, it reduces the risk of accidents and allows for better control and maneuverability of these vehicles.Rate this question:
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- 21.
Vehicle weight has an impact on
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Power consumption
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Braking
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Pickup
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All above
Correct Answer
A. All aboveExplanation
The weight of a vehicle affects power consumption, braking, and pickup. A heavier vehicle requires more power to move, resulting in increased power consumption. Additionally, the weight affects the braking distance, as a heavier vehicle takes longer to stop. Lastly, a lighter vehicle typically has better pickup or acceleration compared to a heavier vehicle. Therefore, all of the mentioned options are impacted by the weight of the vehicle.Rate this question:
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- 22.
Higher Voltage in Automotive has following problems
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Higher cable cross section
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EMI/ EMC
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High Shock value
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Non of the above
Correct Answer
A. EMI/ EMCExplanation
The higher voltage in automotive systems can lead to EMI/EMC issues. EMI (Electromagnetic Interference) refers to the disturbance caused by electromagnetic radiation from an external source, which can interfere with the proper functioning of electronic devices. EMC (Electromagnetic Compatibility) is the ability of electronic devices to operate without being affected or causing interference to other devices in their electromagnetic environment. Higher voltage levels can generate more electromagnetic radiation, increasing the risk of EMI/EMC problems. Therefore, EMI/EMC is a valid concern when dealing with higher voltage in automotive systems.Rate this question:
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- 23.
Ola / Uber operate on following
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GSM & GPS
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RFID
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Bluetooth
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E Sim
Correct Answer
A. GSM & GPSExplanation
Ola and Uber operate on GSM (Global System for Mobile Communications) and GPS (Global Positioning System). GSM is a standard for mobile communication that allows these ride-hailing services to connect with their drivers and passengers through mobile networks. GPS is used to track the location of the vehicles and provide real-time navigation for drivers and accurate pick-up and drop-off locations for passengers. These technologies enable efficient and reliable operations for Ola and Uber, ensuring seamless communication and effective transportation services.Rate this question:
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- 24.
Following cars have online Fuel Economy
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Swift
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Honda
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I10
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Figo
Correct Answer
A. HondaExplanation
The given information states that the cars Swift, Honda, I10, and Figo have online Fuel Economy. Out of these options, Honda is the correct answer.Rate this question:
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- 25.
Speedometer in most of 2 Wheeler has following measurement
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GPS/GSM
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Wheel Speed
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Gear Speed
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Fuel Flow
Correct Answer
A. Wheel SpeedExplanation
The correct answer is "Wheel Speed" because the speedometer in most two-wheelers measures the speed of the vehicle based on the rotation of the wheels. This is typically done using a sensor that detects the rotation of the wheel and calculates the speed based on the number of rotations per unit of time. This measurement is important for the rider to know how fast they are traveling and to maintain a safe and controlled speed while riding.Rate this question:
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- 26.
Brake lamp glows when
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Vehicle is turn on
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Brake is pressed
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Turn indicator is on
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Hazard switch is on
Correct Answer
A. Brake is pressedExplanation
The correct answer is "Brake is pressed" because when the brake pedal is pressed, it activates the brake light switch, which in turn illuminates the brake lamp. This is an important safety feature as it alerts drivers behind the vehicle that the brakes are being applied, indicating that the vehicle is slowing down or coming to a stop.Rate this question:
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- 27.
Bigger Wheel size is recommended for following
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Fuel economy
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Looks
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Better Ride
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Slim Tyre usage
Correct Answer
A. Better RideExplanation
A bigger wheel size is recommended for a better ride because larger wheels have a larger contact patch with the road, resulting in improved stability and smoother handling. The increased wheel diameter also helps to absorb bumps and vibrations, providing a more comfortable driving experience. Additionally, bigger wheels can enhance the overall appearance of the vehicle, giving it a more stylish and aggressive look.Rate this question:
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- 28.
Scooters are fatigue tested for following g value
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1 g
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0.2 g
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0.5 g
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3 g
Correct Answer
A. 3 gExplanation
Scooters are fatigue tested to determine their durability and performance under different conditions. The given options represent the values of g-forces that the scooters are tested for. The correct answer is 3 g, which means that the scooters are subjected to a force equivalent to three times the acceleration due to gravity. This test helps ensure that the scooters can withstand high levels of stress and vibrations during operation without experiencing any structural or mechanical failures.Rate this question:
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- 29.
Electric car has battery placed in following area
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Bonnet
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Roof top
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Dicke
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Under Seat
Correct Answer
A. Under SeatExplanation
The correct answer is "Under Seat". Electric cars typically have their batteries placed under the seat. This location allows for better weight distribution and stability, as well as maximizing interior space. Placing the battery under the seat also helps to lower the car's center of gravity, which improves handling and overall driving dynamics. Additionally, this location helps protect the battery from external elements and potential damage.Rate this question:
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- 30.
In Ideal case, the Charging current for 200Ah battery would be _________ ?
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0.5C
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2C
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4C
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None of the above
Correct Answer
A. 0.5CExplanation
In an ideal case, the charging current for a 200Ah battery would be 0.5C. The "C" in this context refers to the battery's capacity, so 0.5C means half the battery's capacity. Therefore, for a 200Ah battery, the ideal charging current would be 100A (0.5 x 200 = 100).Rate this question:
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Mar 20, 2023Quiz Edited by
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Feb 06, 2019Quiz Created by
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