Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

Which of the following parts are not part of the Shutdown Circuit? (Multiple choice)

a. BOTS

b. TSAL

c. Inertia Switch

d. LVMS

See FSG Rules 2023 EV6.1

2 / 10

2. What is the maximum length of time allowed for the driver change in endurance, in order to recieve no penatly?

a. 3 mins

b. 2 mins

c. 5 mins

d. as long as the team requires

See FSG Rules 2023 D7.5.4

3 / 10

3. What is the minimum tread depth of the rain tires?

a. 2.1 mm

b. 2.4 mm

c. 2.3 mm

d. 2.2 mm

See FSG Rules 2023 T2.6.1

4 / 10

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

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

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

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

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

See FSG Rules 2023 D2.1.9

5 / 10

5. What does a black flag mean?

a. driver must immediately pull over on track

b. driver must stop in driver change area for a mechanical inspection

c. session has been completed

d. driver must stop in the driver change area for a discussion with an official

See FSG Rules 2023 D2.1.3

6 / 10

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

a. As many as they like

b. one

c. three

d. two

See FSG Rules 2023 D1.1.2

7 / 10

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

a. 30 mm

b. 25 mm

c. 35 mm

d. not defined in rules

See FSG Rules 2023 T2.2.1

8 / 10

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

a. False

b. True

9 / 10

9. What is the maximum number of drivers allowed to compete at an event?

a. As many as the team wants

b. 4

c. 6

d. 5

See FSG Rules 2023 D1.1.1

10 / 10

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

a. 35

b. 13.3 %

c. 35 %

d. 20

See FSG Rules 2023 S3.7.2

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 20

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

a. one

b. As many as they like

c. two

d. three

See FSG Rules 2023 D1.1.2

2 / 20

Which of the following parts are not part of the Shutdown Circuit? (Multiple choice)

a. TSAL

b. BOTS

c. Inertia Switch

d. LVMS

See FSG Rules 2023 EV6.1

3 / 20

3. What is the maximum number of drivers allowed to compete at an event?

a. 5

b. 6

c. As many as the team wants

d. 4

See FSG Rules 2023 D1.1.1

4 / 20

4. Your team completes their best manual acceleration run in 3.3 secs, but at the end of the run knocks over one cone. The fastest team overall completed their run in 4.1 secs. How many points did your team recieve for acceleration? Round to one decimal place.

See FSG Rules 2023 D5.4.2

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

5 / 20

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)

6 / 20

6. Which statement about the Ready-To-Drive sound is correct?

a. It can be similar to the road noise, but must be louder

b. The used sound must be easily recognisable

c. The maximum duration is one secound

d. Animal voices, except goat voices, are forbidden

See FSG Rules 2023 E4.12

7 / 20

7. What is the maximum hight for aerodynamic devices rearward of a vertical plane through the rearmost portion of
the front face of the driver head restraint support ?

a. 9.3 dm

b. 1.1 m

c. 1.25 m

d. 0.8 m

See FSG Rules 2023 S3.2

8 / 20

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

a. 3

b. 1

c. 2

See FSG Rules 2023 S1.4.6

9 / 20

9. 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

10 / 20

10.

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. Switch off the Tractive System Master Switch during driver change

c. Be on of the members pushing the car with the push bar

d. Be present during driver change

e. Be a valid team member

f. Present whenever work is performed on the Tractive System

g. Be the one driving the accumulator cart

See FSG Rules 2023 A6.10.2, D7.5.2, D7.5.6, A4.3.4 & A4.4.2

11 / 20

11.

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

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

b. 4

c. As many as they like

d. 2 with an additional Autonomous System Responsible

e. 2

f. 3

See FSG Rules 2023 A4.3.1

12 / 20

12. What is the diameter of the outside skidpad circle?

a. 21.25 m

b. 15.25 m

c. 20 m

d. various between events

See FSG Rules 2023 D4.1.2

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

installation cost: 400.000 EUR
machine cost: 20.000 EUR x 5 years = 100.000 EUR
material cost: 50 EUR x 1200 cars = 60.000 EUR
Total cost: 560.000 EUR
Cost per car: 560.000 EUR /1200 = 560 EUR

14 / 20

14. To build your race car you need a part what can be bought on the public market for 450 EUR per piece. Your plan is to sell 1200 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

15 / 20

15. 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

16 / 20

16. The team at an event with the highest points in the Buisness Plan Presentation but not reaching the finals has 65 points. Your team received 61 points but your team missed their timeslot for BPP. What is your Business Plan Presentation Score? Round to one decimal place

See FSG Rules 2023 S1.4.6 & S1.2.5

17 / 20

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

a. 35 mm

b. 30 mm

c. 25 mm

d. 20 mm

See FSG Rules 2023 T2.2.1

18 / 20

18.

The Electrical System Officer must: (Multiple Choice)

a. Not be the team captain

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

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

d. Not be part of the static events

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

f. Be present during driver change

g. Not enter the dynamic area

h. Be the driver

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

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

19 / 20

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

a. True

b. False

See FSG Rules 2023 IN7.1.3

20 / 20

20. Your team recieves 14.7 points for their autocross run. The fastest time overall was 69.1 secs. How long was your team’s fastest run? Round to one decimal place.

See FSG Rules 2023 D6.3.2 & D9.1.7

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

1 / 10

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

a. TS current when the LVS is active

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

c. Cell temperatures of 30% most thermally critical cells

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

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

f. All cell voltages that are SCS

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

2 / 10

2. Which of the following statements about LV battery packs with lithium based chemistry other than LiFePo4 is not true?

a. They must be in a rigid and sturdy casing

b. They must include overcurrent protection that rips at or below the maximum specified discharge current of the cells

c. They must be enclosed in a non-conductive, waterproof and acid resistant container

d. They must be protected from short circuits, not more than 100 mm from ungrounded terminals

See FSG rules 2023 T11.7.7

3 / 10

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

a. Every wire used inside of the TSAC

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

c. Spare TSAC

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

e. A device above the segments to prevent arc flashes

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

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

4 / 10

4. 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.

5 / 10

5. 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

6 / 10

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

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

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

c. 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

d. NiMH type cells are allowed

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

f. 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

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

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

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

7 / 10

7. 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)

8 / 10

8. 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.

9 / 10

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

a. Neither of these

b. Only Verilog

c. Both

d. Only VHDL

10 / 10

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

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

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

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

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

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

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

See FSG rules 2023: T6.3

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 10

1. Calculate the force Fc working at point C.

Rax = 4kN, Ray = 10 kN

Rbx =5 kN, Rby = 8 kN

Moment equation around point D:

0 = -Fc x 1m + Rby x 2.5 m – 60 kN x 4 m + Ray x 5.5 m

Fc = -165 000 N

Fc = – 165 kN

2 / 10

2. A 30 lbs model helicopter flying at 51 mph, calculate its kinetic energy. Answer in J to 3 significant figures.

KE=0,5 * m * v^2

3 / 10

What temperature would occur at the stagnation point of an aircraft flying at a speed of

V_{1} = 2000 km/h

, assuming that the air behaves as an ideal gas under these conditions? The temperature of the undisturbed air is theta_1 = -30°C.

a. 254.53°F

b. 177.06°F

c. 308,.64°F

4 / 10

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

5 / 10

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

6 / 10

6. 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

7 / 10

7. Before the endurance you pump nitorgen in your tires at a temperature of 20°C and 0.7 bar relative pressure. Knowing, that during the endurance the maximal tyre temperature will be around 60°C, what will be the maximal relative pressure of the tyre? Give answer in bar to two decimal places.

p2 = p1 * (T2/T1)

8 / 10

8. 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 = 230mph, μF = 0.17, 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

9 / 10

9. in cm^3, round to decimal numbers sperated by point (13.5) no unit int the answer

10 / 10

10. A spring in a car’s suspension has elastic potential energy store 226 J. If the spring constant is 8.1N/mm, find the extension. Give answer in meters to three significant figures.

E = 0.5 * k * e^2

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%