Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

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1. What is BOM short for?

a. Bill of Material

b. Basics of Mechanics

c. Beginning of Mission

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2. What does the yellow and red striped flag mean during Endurance and Autocross Event?

a. The driver must be prepared to overtake a slower car on the racing line

b. The track is slippery. The driver must be prepared for evasive maneuvers to avoid the situation

c. The driver must pull into the driver change area for discussion with the officials

d. The driver must pull into the driver change area for a mechanical inspection of the vehicle

See FSG Rules 2023 D2.1.10

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3. How many events may a driver drive during a competition?

a. one

b. two

c. As many as they like

d. three

See FSG Rules 2023 D1.1.2

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4. What is not a ’system‘ in the Cost Reports Bill of Material?

a. Steering System

b. Brake System

c. Aerodynamics

d. Electrical

See FSG Rules 2023 S2.4.4

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5. What is the minimum allowed static ground clearance, including driver?

a. 25 mm

b. 20 mm

c. 30 mm

d. 35 mm

See FSG Rules 2023 T2.2.1

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6. How many different tyre sizes can be used on a car during an Autocross run?

a. 1

b. Isn’t mentioned in the rules

c. 2

d. 4

See FSG Rules 2023 T2.6.2

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7. What is the penatly for hitting over a cone during skidpad?

a. disqualified

b. 2 secs

c. 10 secs

d. 0.2 secs

See FSG Rules 2023 D9.1.7

8 / 10

8. How many cones do you need to build the skidpad track

a. 64

b. 60

c. 58

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9. An EV team without driverless components have 9 parts of scrutineering to pass before being allowed to compete on track.

a. False

b. True

See FSG Rules 2023 IN1.1.1

10 / 10

10. What is AMS short for?

a. Alternative Manufacturing Solution

b. Autonomous Models Summary

c. Accumulator Management System

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Quiz „Intermediate“

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1. Your team completes their best manual skidpad run in 4.3 secs but knocks down 5 cones. The fastest team overall completed their run in 4.9 secs. How many points did your team recieve for skidpad? Round to one decimal place.

See FSG Rules 2023 D4.4.3

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2. Each team must have two 0.8kg fire extinguishers.

a. False

b. True

See FSG Rules 2022 T13.4.1

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3. What is the volume of the smallest allowed head restraint? Give answer to two decimal places in m^3

See FSG rules 2023:

Minimum dimensions: T5.7.2

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4. Which of the following requirements are a must for all non DV electric cars with wings, when moving the vehicle on the competition site? (Multiple choice)

a. Vehicles must be pushed at a normal walking pace by means of a red pushbar

b. Autonomes System must be deactivated

c. Detachable key/handle of the tractive system master switch must be removed

d. Two team members walking on either side of the vehicle

e. A registered driver wearing the required driver equipment as defined in T 13.3 including helmet, arm restraints and balaclava having full control of steering and braking

See FSG Rules 2023 A.6.7

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5. You want to use this shutdown button left and right between the main hoop and the main hoop bracings. Is this application rules compliant?

a. Yes, if the buttons are within a 30 mm range at the same height measure from the bottom to the centre line of the buttons

b. No, because its red

c. No, because it should be removable during technical inspection

d. No, the button is not allowed to have a yellow background ring

e. No, the button is too small

See FSG Rules 2023 T11.4

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6. How far is the car tipped during the tilt test?

a. 30°

b. 45°

c. 50°

d. 60°

See FSG Rules 2023 IN7.1.3

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7. What does the yellow flag mean during the driving disciplines?

a. The driver must slow down, something has happened on track. No overtaking unless directed by track marshals

b. The driver must immediate stop on track in a safe and controlled way

c. The driver must be prepared to overtake a slower car on the racing line

d. The track is slippery. The driver must be prepared for evasive maneuvers to avoid the situation

See FSG Rules 2023 D2.1.9

installation cost: 400.000 EUR
machine cost: 20.000 EUR x 5 years = 100.000 EUR
material cost: 50 EUR x 1000 cars = 50.000 EUR
Total cost: 550.000 EUR
Cost per car: 550.000 EUR /1000 = 550 EUR

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8. To build your race car you need a part what can be bought on the public market for 250 EUR per piece. Your plan is to sell 1000 race cars the next five years. If you will manufacture the part by yourself, you need an investment of 400.000 EUR for the installation. Furthermore, you need to pay 20.000 EUR per year for the machine operator. The material costs are 50 EUR per piece. The machine cannot be sold after the usage. What is the cost of one piece of the own manufactured parts? Give answer as one whole number

9 / 20

The following items have to be on or attached to the push bar, if you are an EV team. (multiple choice)

a. A multimeter with test leads rated for 600V CAT III or better

b. Car number with a character height of at least 20 mm

c. Two pairs of high voltage insulating gloves

d. Red paint

e. University name written on high contrast background

f. Two pairs of safety glasses

g. A shutdown button with a minimum diameter of 24 mm

h. An approved fire extinguisher

i. All ESOQs printed out

j. An additional pair of drivers gloves and a spare balaclava

k. Contact details of the team captain

l. A spare key for the Tractive System Low Voltage Master Switch

See FSG 2023 Rules T13.1

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10. What is the minimum allowed ground clearance, excluding driver?

a. 30 mm

b. not defined in rules

c. 25 mm

d. 35 mm

See FSG Rules 2023 T2.2.1

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11. What is the minimum diameter of the shutdown button in the cockpit?

a. 24 mm

b. 26 mm

c. 20 mm

d. 22 mm

See FSG Rules 2023 11.4.4

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12. What is the minimum amount of ASR needed at the Event when being a DV Team?

a. 1

b. 3

c. 2

See FSG Rules 2023 S1.4.6

Steps:

calculate average time between left circle and right circle for each run
add any penalties to these times
decide on the best time of Team A and Team B
slowest time between these two best times is T_team
fastest time between these two best times gets multipled by 1.25 and is T_max
use formula from FSG Rules 2023 D4.4.3

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13.

Assuming the skid pad event has only two participants, both EV without driverless. Team A and Team B: calculate the score rounded to two decimals for the team scoring the lower amount of points using the following data. (FS2025 Rules)

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14. How many percentage of points is the Cost Understanding in the Overall Cost and Manufacturing Event?

a. 25 %

b. 40 %

c. 50 %

d. 30 %

See FSG Rules 2023 S2.10.1

See FSG Rules 2023. Correct answers:

A5.3.2 -> deadlines
T12.2.3 -> tyre types
T2.61 -> dry tyres
T12.2.2 -> size of uni name
T2.6.2 -> tyre types

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15. Which statements are correct? (multiple choice)

a. All tyres on the same vehicle must have the same manufacturer and compound

b. Submission of the IAD 50h after the deadline will result in a 10 points penalty

c. All tyres on the same axle must have the same manufacturer, size and compound

d. Characters on the university name must be at least 50 mm high on both side of the vehicle

e. The tyres on the vehicle when it is presented for technical inspection are defined as its "wet tyres"

f. Teams, that submit the CRD 50h after the deadline will recieve a 20 points penalty

g. Teams, that submit the SES 170h after the deadline will be de-registered

h. The tyres on the vehicle when it is presented for technical inspection are defined as its "dry tyres"

i. Stroke width and spacing between numbers of the university name must be at least 20 mm

j. All tyres on the same vehicle must have the same manuafcturer, size and compound

k. The university name needs to be either black on a white background or white on a black background

l. The university name needs to be placed on a high contrast background

m. The university name needs to be written in Comic-Sans MS

16 / 20

16. What is the minimum score for the third place in the Business Plan finals (with three finalists)?

a. 75

b. 70

c. 71

d. There is no lower limit

See FSG Rules 2023 S1.4.7

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17.

A team can register up to how many Electrical System Officers?

a. 3

b. As many as they like

c. 2

d. 4

e. 4 but one of them has to be a driver

f. 2 with an additional Autonomous System Responsible

See FSG Rules 2023 A4.3.1

See FSG Rules 2023 A1.2.7

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18. As an EV Team without DV, what is your maximum total score of Busniess Plan Presentation, Cost and Manufacturing, Skid Pad, Acceleration and Efficiency together?

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19. Teams who remove their vehicle from the event site after
the event has begun will be disqualified from the event.

a. False

b. True

See FSG Rules 2023 S3.2

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20.

The Electrical System Officer must: (Multiple Choice)

a. Be contactable by phone from the officials between 8 am and 8 pm during the event

b. Be at least 18 years old

c. Be a valid team member

d. Have attended an event as a non-ESO in the year prior

e. Be present during all scrutineerings

f. Be the driver

g. Be the driver if there is another ESO on the team

h. Meet the qualification of working on HV power systems after DGUV 209-093 2E/3E

See FSG Rules 2023 A4.2.9, A4.3.4 & A4.3.8

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

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1. Which of these HV- and LV-components have to be fire-retardant? (Multiple Choice)

a. An LV energy storage with a lithium iron phosphate chemistry

b. A dividing element between the main fuse, the AIRs and the rest of the TSAC

c. Every wire used inside of the TSAC

d. A device above the segments to prevent arc flashes

e. Both layers of the fire wall including the material that bonds them together

f. Spare TSAC

See FSG rules 2023: EV5.3.4, EV5.4.6, EV5.5.12

2 / 10

2. Which of the following statements regarding the Brake System is false?

a. Unarmored plastic brake lines are prohibited

b. The brake over travel-switch must be of the type single pole, single throw switch

c. The first 90 % of the brake pedal travel may be used to regenerate brake energy without actuating the hydraulic brake system. The remaining brake pedal travel must directly actuate the hydraulic brake system, but brake energy regeneration must not remain active

d. The brake pedal and its mounting must be designed to withstand a force of 2kN without any failure of the brake system

See FSG rules 2023: T6.1.10

3 / 10

3. You have an electric car with these specifications:

ten 12V batteries
constant velocity of 80 km/h
flat road (friction 1.2kN -> aerodynamic load included)
load for battery 160 Ah
efficiency of 80% (Motor)

How far can you drive with one load? Give answer to nearest whol number in km.

4 / 10

4. Three inductors are connected as shown in the following figure:

Given that L1 = 2L2, find L1 and L2 such that the equivalence inductance is L = 0.7 H.
Give your answers in Henry, rounded to three decimal places separated by a comma (L1, L2)

series connection: L = 0.5 H + (L1*L2)/(L1 + L2) = 0.7 H
sub-in and rearrange to Solve for L2: (2L2)^2/(3L2) = 0.2 H
sub-in L2 to find L1

5 / 10

5. A thin circular, isolated wire made of copper with radius R lies on a table with its ends
connected to a Volt meter. Another, straight wire lies exactly along a diameter of the
circular wire, connected to an alternate current source i(t) = I0 sin(wt).
The experimental setup is shown in the following Figure:

Which effective voltage Ueff does the Volt meter display?
R = 10 cm, maximum current I0 = 1 A, f = 50 Hz.
Give your answer in Volts with three decimal places

The magnetic field lines H around the straight, current-carrying wire run in concentric circles, with their centres lying on the wire axis. The field lines thus enter the wire perpendicularly in one half of the circle and leave it perpendicularly in the opposite half. This means that one semicircle of the induction loop is penetrated by the time-varying magnetic flux (t), while the opposite semicircle is penetrated by exactly the opposite flux -(t) for reasons of symmetry. The total flux at any time is zero at all times, which means that no induction voltage and thus no effective voltage Ueff is indicated at any time. The specification of the data in the task was therefore completely superfluous.

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6. The previous season you could recuperate only 27% of your initially stored energy, but this season a big improvement in your drivetrain allows you to recuperate 69% of the initially stored energy. Knowing that you had 6.3 kWh of energy in your accumulator during the last season, how much energy must your new accumulator have, if you assume, that it’s the same length and speed? Give answer in kWh

E_new = E_old * (1+0.27)/(1+0.69)

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7. For this Wheatstone Bridge based NTC temperature measurement circuit, which is the lowest voltage measurement (VAB) that is possible to obtain at 60ºC? (NTC B: 3435 +/-1%) Give answer in Volts rounded to two decimal points.

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8. How long will it take to discharge C1 below 60V using the following constant current sink if it is initially charged at 565V? (MOSFET’s VGSth: 4V) Give answer to two decimal places in secs.

Circuit’s current: MOSFET will operate in linear zone, close to the activation voltage. Therefore, as VGSth is 4V, VS can be taken as 8V. From these 8V and the 47R current limiting resistor, the discharge current of the circuit will be 8/47->0,17A
As the constant current discharge of a capacitor depends on capacity, as V=i·t/C->
t=V·C/i=(565-60)·0,0012/0,17=3,56s

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9. Which of the following statements is false regarding the difference between Lead-based batteries, Nickel-based batteries and Lithium-based batteries?

a. The Lead based batteries typically have a nominal voltage of 2V

b. The Lithium-based batteries can achieve specific energies of over 200 Wh/kg

c. The Nickel based batteries have the lowest nominal voltage

d. The Lithium-based batteries typically have the highest specific energy

e. The Nickel based batteries typically have the lowest specific energy

no solution currently

10 / 10

10. Which statements about the travel of the driving pedal is correct

a. Travel is defined as the angle from resting position to fully applied in degrees

b. At least two separate sensors must measure the position of the driving pedal

c. Travel is defined by the Perimeter at the widest radius

d. The Power to the motors may not exceed 5kW when pedal is in resting position

e. Maximum power is being utilized when the driving pedal is fully applied

f. Travel is defined as a value from 0 to 1

g. Travel is defined by the Torque needed to actuate the pedal

FSG Rules 2023: T11.8.1, T11.8.5

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Quiz „General Engineering“

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1. Answer in MJ, round to one decimal number (example 45.7), no unit in the answer

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2. An object is fired vertically upwards from the ground at time t = 0 s in still air at a speed of 9.6 m/s. On the way up, what is the height of the object above the ground when it has a speed of 1.9 m/s. At what time does it reach this height on the way down? Give both answers separated by a comma to one decimal place.

Possible solution:

use this formula to calculate the required height: „v^2 = u^2 + 2as“ -> 4.513m
use same formula again to calculate the maximum height the object reaches -> 4.697m
then use this formula to calculate the time the object takes to reach maximum: „v=u + at“ -> 0.785s
calculate the time taken for the object to fall from the maximum height to 4.5m (first answer): „s =1/2at^2“-> 0.194s
add together the two calculated times -> 1.0s

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3. in m, to decimal numbers seperated by a point (example: 150.00), no unit requirment for the solution

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4. Calculate the gravitational potential energy of a 4 kg object at 15 m above Earth’s surface with gravitational field strength of 9.81 N/kg. Give answer to three significant figures in J.

E = m * g * h

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5. The given gearbox consists of two gear sets with wheels 1, 2 and 3, 4 respectively. The wheels are fixed to their shafts. Calculate the drive speed (in rpm) of wheel 4?

Given: n1=600 rpm, z1=18, z2=90, z3=24, z4=120

Calculate gear ratio of gear 1 to gear 2: ratio: no. of teeth gear 1/no. of teeth gear2 -> ratio: z1/z2
Calculate output speed of gear 2: output speed = input speed * gear ratio
Gear 3 turns at same speed as gear 2
Calculate gear ratio of gear 3 to gear 4: ratio:z3/z4
Calculate output speed of gear 4: output speed = input speed * gear ratio = 24

6 / 10

6. A water tank under a pressure of p = 117.72 kPa has three pipes connected to it, which are sealed 5 meters below the water surface by three plates with areas A₁, A₂, and A₃.
Task:
Sort the pressures p₁, p₂, and p₃ according to their magnitude.

a. p2=p1>p3

b. p2>p3>p1

c. p1=p2=p3

d. p1>p2>p3

e. p2>p1>p3

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7. A cat of mass 12 kgs ran at 65mph. What is its kinetic energy? Answer in J to the nearest whole number

KE= 0,5 * m * v^2

8 / 10

8. Frage

a. Nein

b. Yes

c. Depends on y

p2 = p1 * (V1/V2)^gamma
gamma= 1.4

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9. An air as an ideal gas expands adiabatic from a volume of V1 = 1,00l with its pressure of p1 = 10^5 Pa to 1/10 of its original pressure. What volume V2 (in litres) does the gas reach after it’s expansion? Round to two decimal places

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10. Calculate the pull force on the plate in Newton. Round to 2 numbers seperated by a point (exanple: 9.13)

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