Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

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

a. 24 mm

b. 26 mm

c. 22 mm

d. 20 mm

See FSG Rules 2023 11.4.4

2 / 10

2. How many points are assigned for the Overall Vehicle Concept in the Engineering Design Event? (Multiple choice)

a. 13.3 %

b. 35 %

c. 20

d. 35

See FSG Rules 2023 S3.7.2

3 / 10

3. What is allowed regarding telemetry during a run?

a. Receiving data from the vehicle

b. Sending commands via the RES

c. Sending commands to the vehicle via W-Lan

d. Software changes to the vehicle

4 / 10

4. Which of the following statements about the dynamic disciplines is correct?

a. Burnouts are allowed

b. The vehicle must be able to start and restart without external assistance

c. Drivers may leave the vehicle during the run

d. Push starts are allowed

5 / 10

5. How many sets of dry tyres are allowed to be used in the manual dynamic disciplines during one event?

a. One set per discipline

b. One set including the practice area and brake test

c. One set excluding the practice area and brake test

d. As many as the team wants

See FSG Rules 2023 D3.2.4

6 / 10

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

a. As many as they like

b. three

c. one

d. two

See FSG Rules 2023 D1.1.2

7 / 10

7. What is BOM short for?

a. Beginning of Mission

b. Basics of Mechanics

c. Bill of Material

8 / 10

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

a. 50 %

b. 40 %

c. 25 %

d. 30 %

See FSG Rules 2023 S2.10.1

9 / 10

9. The car is tipped to 60° during the tilt test?

a. True

b. False

See FSG Rules 2023 IN7.1.3

10 / 10

10. How many drivers are allowed to drive in each discipline?

a. 1

b. 2

c. 4

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 65%

Quiz „Intermediate“

1 / 20

1. What is the minimum diameter of a shutdown button placed on the side of the vehicle behind the driver’s compartment?

a. 45 mm

b. 40 mm

c. 41 mm

d. 24 mm

e. 32 mm

DOO Penatly in autocross is 2 secs per cone

Re-arrange formula from FSG Rules 2023 D6.3.2

Plug values into formula (don’t forget that Tmax is 1.25x the best time from all teams including penalties)

2 / 20

2. The car is tipped to 60° during the tilt test?

a. False

b. True

See FSG Rules 2023 IN7.1.3

3 / 20

3. 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

4 / 20

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

a. 2

b. 3

c. 1

See FSG Rules 2023 S1.4.6

5 / 20

5. For the rain test: (Multiple Choice)

a. The vehicle will be sprayed for 2 mins at first and again for an additional 2 mins if the officials decide so

b. The water spray can be in front and behind the car

c. Components may be used to protect the vehicle from water during rain test

d. The vehicle must have passed the accumulator inspection

e. All wheels must be removed

f. Must be in ready-to-drive mode

See FSG Rules 2023 IN9.2.6, IN9.1.1 (& IN4.1.2) & IN9.2.1

6 / 20

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

a. 1

b. 4

c. 2

d. Isn’t mentioned in the rules

See FSG Rules 2023 T2.6.2

7 / 20

7. Your team completes their best manual acceleration run in 5.3 secs. The fastest team overall completed their run in 3.9 secs. How many points did your team recieve for acceleration? Round to one decimal place.

See FSG Rules 2023 D5.4.2

8 / 20

8. Your team recieves 23.9 points for their autocross run. The fastest time overall was 82.3 secs. How long was your team’s fastest run? Round to one decimal place.

See FSG Rules 2023 D6.3.2 & D9.1.7

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

9 / 20

9. 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

10 / 20

10. An official has the right to remove the scrutineering sticker from the car, if the car is no longer rule compliant.

a. True

b. False

11 / 20

11. What is the length of the acceleration track?

a. 75 m

b. 50 m

c. 100 m

d. 60 m

See FSG Rules 2023 D5.1.1

12 / 20

12. Your team completes their best manual acceleration run in 4.1 secs. The fastest team overall completed their run in 3.2 secs. How many points did your team recieve for acceleration? Round to one decimal place.

See FSG Rules 2023 D5.4.2

13 / 20

13. Your team completes their best manual skidpad run in 5.1 secs but goes off course. The fastest team overall completed their run in 4.6 secs. How many points did your team recieve for skidpad? Round to one decimal place.

See FSG Rules 2023 D4.4.3 & D9.1.7

14 / 20

14.

The Electrical System Officer must: (Multiple Choice)

a. Be the driver

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

c. Be at least 18 years old

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

e. Be a valid team member

f. Be present during all scrutineerings

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

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

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

15 / 20

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

a. Electrical

b. Steering System

c. Aerodynamics

d. Brake System

See FSG Rules 2023 S2.4.4

16 / 20

16. What is the penatly for driving off course during endurance?

a. 30 secs

b. 10 secs

c. 2 secs

d. disqualified

See FSG Rules 2023 D9.1.7

17 / 20

17. The team at an event with the highest points in the Buisness Plan Presentation but not reaching the finals has 69 points. Your team received 33 points. What is your Business Plan Presentation Score? Round to one decimal place & don’t forget to use a point instead of comma

See FSG Rules 2023 S1.4.6

18 / 20

18. How many percentage of points are the Finances in the Business Plan Presentation Event?

a. 15 %

b. 25 %

c. 10 %

d. 20 %

See FSG Rules 2023 S1.4.1

19 / 20

19.

The Electrical System Officer must: (Multiple Choice)

a. be replaced by the ASR if the vehicle has autonomous features and only one ESO is at the event

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

c. Not enter the dynamic area

d. Be present during driver change

e. Not be the team captain

f. Be the driver

g. Accompany the vehicle whenever it is moved around on the competition side

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

i. Not be part of the static events

See FSG Rules 2023 A4.3.6, IN9.2.2 (& A4.3.3, A6.7.2), D7.5.2 & A4.4.2

20 / 20

20. Which of these is/are not a penalty during autocross? (Multiple choice)

a. did not finish

b. 5 secs

c. 2 secs

d. 0.2 secs

See FSG Rules 2023 D9.1.7

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 58%

Quiz „Electrical“

1 / 10

1. Which of the following requirements of the brake light assembly must be met to be rules compliant? (multiple choice)

a. The brake light must be illuminated when driving into the driver change area

b. Clearly visible from the back at bright sunlight with a viewing angle of at least 30°

c. The shape of the break light can be a square or a circle

d. The brake light must be functioning even if HV- or LV-power supply failed or is being disconnected

e. The brake light must be a red light on a black surface

f. The brake light measures least 10 cm2 with an even level of brightness

See FSG rules 2023: T6.3

2 / 10

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

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

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

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

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

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

FSG Rules 2023: T11.8.1, T11.8.5

3 / 10

3. Your team is considering two languages, Verilog and VHDL, for programming an FPGA. Which languages could be used?

a. Only VHDL

b. Both

c. Only Verilog

d. Neither of these

4 / 10

4. How much current flows when 99 C passes down a wire in 11 s? Give answer in amps as a whole number.

Q = I * t

5 / 10

5. Your head of powertrain has found a battery cell with excellent specifications and yet cheap. He decides upon a 142s2p accumulator configuration using the cells with a capacity of 5.8 Ah. The manufacturer specifies an internal impedance of 1.5 mOhm. However, after a while you notice the cells are of horrible quality and their real capacity varies significantly leading to an unbalanced accumulator.

He performed experiements to find an approximation of the cells SoC relation to their open-circuit voltage (EMF) as shown in the following figure:

Assume due to imbalance, exactly half of the accumulators cells are at 40% SoC and half at 80% SoC. What current will be drawn at the maximum allowed power usage? Give answer in Amps to nearest whole number

40% SoC -> 3.7V and 1.6 mΩ and 80% SoC -> 3.8V and 1.2 mΩ, total open-circuit voltage

71*3.7 + 71*3.8 = 532.5V

Total impedance = 71 * (1.6m/2) + 71*(1.2m/2) = 99.4mΩ

V*I = I^2*R * 80kW

I = 155 A

6 / 10

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

a. 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

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

c. Unarmored plastic brake lines are prohibited

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

7 / 10

7. Which of the following statements about the Tractive System Accumulator are wrong? (Multiple choice)

a. All electrical safety items used for working on the accumulator must be rated for 1000 VDC

b. The TSAC can be protected from rear impact by a square tube with an edge length of and a wall thickness of 1.2 mm

c. The maximum temperature limit for LiFePo4 cells is 60°C

d. If carried out correctly, a three-point bending test is sufficient to prove adequate strength of composite material used for a TSAC if the data and photos are provided in the SES

e. NiMH type cells are allowed

f. Accumulator container attachments can be made of 1 mm thick steel

g. There must be inspection holes in the side wall and the bottom of the TSAC if the wall thickness cannot be determined otherwise

h. The ESO’s name and phone number can be displayed in characters with a height of 25 mm on the TSAC’s lid

See FSG rules 2023. Correct answers:

EV5.5.5
T 3.2.1, T 3.15, 5.5.2, Asquare tube=90.24 mm²
EV 5.5.14
IN 3.2.2 only for TS voltage

8 / 10

8. The following processes have to be measured by the AMS. (Multiple choice)

a. Cell temperatures of 30% most thermally critical cells

b. TS current but only if it can be displayed during technical inspection

c. All cell voltages that are SCS

d. TS current when the LVS is active

e. Cell voltages when the charger is connected to the accumulator

f. Cell temperatures of at least 30% of all cells distributed in at least 75% of all segments

See FSG rules 2023: EV5.8.1, EV5.8.1 & EV5.8.3, EV5.8.10

9 / 10

9. Your BSPD has been triggered although the driver did not touch the driving pedal. What could have gone wrong? (multiple choice)

a. A sensor input is shorted to Ground

b. Software parameters are set wrong

c. Sensors are out of range

d. The AMS signals a power of over 5kW and triggers the BSPD

e. The springs from the driving pedal are torn in two

10 / 10

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

a. The Nickel based batteries have the lowest nominal voltage

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

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

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

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

no solution currently

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 10

1. A racing car rolls to a stop on a horizontal course with an initial speed of v. It decelerates
only by friction with a rolling resistance of μF, which is supposed to be independent of
the current velocity.
What is the distance s the car needs to stop?
v = 300 km/h, μF = 0.15, g = 9.81 m/s2.
Give your answer in meters, rounded to four significant places.

Ekin = 0.5*m*v^2
W = Fr*s = μ*m*g*s
Kinetic energy of the car is completely converted by friction into heat and deformation work W. -> Ekin = W
s= v^2/2*μ*g

2 / 10

2. The magnitude of the manifold reaction force FK is to be determined. In Newton, integer, no unit in the answer

3 / 10

3. 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

4 / 10

4. 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

5 / 10

5. If the density of aluminium is 2.71 kg/m^3, find the volume of a 0.888 kg of aluminium. Give answer in m^3 with two decimal places.

density (rho) = m / V

6 / 10

6. An object is fired vertically upwards from the ground at time t = 0 s in still air at a speed of 8.0 m/s. On the way up, what is the height of the object above the ground when it has a speed of 2.0 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“ -> 3.1m
use same formula again to calculate the maximum height the object reaches -> 3.3m
then use this formula to calculate the time the object takes to reach maximum: „v=u + at“ -> 0.8s
calculate the time taken for the object to fall from the maximum height to 3.1m (first answer): „s =2at^2“-> 0.2s
add together the two calculated times -> 1.0s

7 / 10

7. Frage

a. Yes

b. Nein

c. Depends on y

8 / 10

8. 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

9 / 10

9. A lorry contains an engine with a power of 0.255 W. The lorry drives for 51 s. Calculate the energy transferred in Joules and round to one decimal places.

P = E/t = W/t

10 / 10

10.

A cantilever is subjected to forces

. Determine the bar force

F_{S 8}

Given F1=F4=F, F2=F3=2F, a

a. -6F

b. 2.85F

c. 7.27F

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%