E-bike Design And Manufacturing Test

30 Questions | By KLUCC | Last updated: Mar 18, 2022 | Total Attempts: 234

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1.

What is the cell voltage of Lead-Acid battery?
- A.
  
  2.0V
- B.
  
  3.6V
- C.
  
  9V
- D.
  
  12V
2.

For a 48V powertrain, consisting of 3.7V nominal cells with 3.2V and 4.2V as extreme voltages, what will be the charging voltage?
- A.
  
  48V
- B.
  
  52V
- C.
  
  55V
- D.
  
  60V
3.

For an SLA battery, the capacity is 20Ah in C10 rating. What will be the capacity in C20?
- A.
  
  Will be more
- B.
  
  Will be Less
- C.
  
  Will be same
- D.
  
  Will double
4.

Which is not a function of BMS?
- A.
  
  Cell Balancing
- B.
  
  Voltage Protection
- C.
  
  Battery Cooling
- D.
  
  Current Monitoring
5.

A 48V 3kWh pack can discharge 250A peak current. What is the rating of motor?
- A.
  
  3kW
- B.
  
  6kW
- C.
  
  9kW
- D.
  
  12kW
6.

BLDC motors are powered by
- A.
  
  Direct Current
- B.
  
  Single Phase AC
- C.
  
  Two Phase AC
- D.
  
  Three Phase AC
7.

Speed of the motors are controlled by
- A.
  
  Current
- B.
  
  Voltage
- C.
  
  Power
- D.
  
  Capacity
8.

Torque of motor is controlled by
- A.
  
  Current
- B.
  
  Voltage
- C.
  
  Power
- D.
  
  Capacity
9.

A 200kg motorcycle with rider needs to accelerate 0-60kph in 10 seconds. What should be the motor rating?
- A.
  
  3kW
- B.
  
  6kW
- C.
  
  9kW
- D.
  
  12kW
10.

A Diesel locomotive powertrain consists of
- A.
  
  Series Hybrid Architecture
- B.
  
  Parallel Hybrid Architecture
- C.
  
  Series Parallel Hybrid Architecture
- D.
  
  Plugin Hybrid Architecture
11.

Why gearboxes are used for ICE vehicles?
- A.
  
  Inefficiency
- B.
  
  Narrow torque band
- C.
  
  Limited speed
- D.
  
  Idling losses
12.

Automatic Scooters have
- A.
  
  Centrifugal Clutch
- B.
  
  Continuous Variable Transmission
- C.
  
  Belt Drive
- D.
  
  All of the above
13.

How can the life of the battery of an EV be increased?
- A.
  
  Fast Charging
- B.
  
  Use 100% DoD
- C.
  
  Use mid part of charge
- D.
  
  Deep discharge
14.

Which among the following is not load on motor in an EV?
- A.
  
  Vehicle and rider weight
- B.
  
  Wind speed
- C.
  
  Terrain Gradient
- D.
  
  Rolling Resistance
15.

For a 48V 20Ah battery pack, how many 9Wh cells be required?
- A.
  
  92
- B.
  
  97
- C.
  
  102
- D.
  
  107
16.

Which among is a characteristic of a streetfighter motorcycle?
- A.
  
  Shorter Wheelbase
- B.
  
  Aggressive Rake
- C.
  
  Stiffer Suspension
- D.
  
  All of the above
17.

What is the advantage of higher voltage powertrain?
- A.
  
  Higher Current
- B.
  
  More Power
- C.
  
  Cooler Electricals
- D.
  
  Higher Efficiency
18.

Which among these is not an Electric Motorcycle Manufacturer?
- A.
  
  Ultraviolette
- B.
  
  Orxa
- C.
  
  Tork
- D.
  
  Ather
19.

A 200kg motorcycle with rider needs to accelerate 0-60kph in 10 seconds. if you have a motor producing 50Nm, what should be the drive ratio for the wheel diameter of 640mm?
- A.
  
  4.2
- B.
  
  4.7
- C.
  
  5.2
- D.
  
  5.7
20.

For electricity-water analogy, voltage is denoted by
- A.
  
  Pressure Head
- B.
  
  Pressure Head
- C.
  
  Potential Head
- D.
  
  None of the above
21.

Which among the following is not a major component in Electric powertrain?
- A.
  
  Battery
- B.
  
  Motor
- C.
  
  Controller
- D.
  
  Charger
22.

EV level 1 charger is
- A.
  
  Single Phase AC
- B.
  
  Three Phase AC
- C.
  
  High Voltage DC
- D.
  
  None of the above
23.

Fast charging stations are
- A.
  
  Single Phase AC
- B.
  
  Three Phase AC
- C.
  
  High Voltage DC
- D.
  
  None of the above
24.

Smart batteries have
- A.
  
  IoT
- B.
  
  CAN
- C.
  
  RFID
- D.
  
  Ethernet
25.

In any EV, with sophisticated algorithm, the highest power is delivered at
- A.
  
  Initial Pickup
- B.
  
  Midrange Cruising
- C.
  
  Top Speed
- D.
  
  Equal power throughout