Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

What is the diameter of the outside skidpad circle?

a. 21.25 m

b. 20 m

c. 15.25 m

d. various between events

See FSG Rules 2023 D4.1.2

2 / 10

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

a. 20 mm

b. 25 mm

c. 35 mm

d. 30 mm

See FSG Rules 2023 T2.2.1

3 / 10

What is BOM short for?

a. Bill of Material

b. Basics of Mechanics

c. Beginning of Mission

4 / 10

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

a. LVMS

b. TSAL

c. BOTS

d. Inertia Switch

See FSG Rules 2023 EV6.1

5 / 10

How many drivers are allowed to drive in each discipline?

a. 4

b. 1

c. 2

6 / 10

What are not the diameter of the skidpad circles? (Multiple choice)

a. 16.25 m

b. 15.25 m

c. 21.25 m

d. 20.25 m

See FSG Rules 2023 D4.1.2

7 / 10

What is the maximum amount of points a EV team can recieve at an event?

a. 800

b. 600

c. 1000

d. Is different at each competition

See FSG Rules 2023 A1.2.5

8 / 10

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

a. 20 mm

b. 26 mm

c. 22 mm

d. 24 mm

See FSG Rules 2023 11.4.4

9 / 10

What is the minimum height of the characters of the car number?

a. Large enough to read it from 20 m distance

b. 150 mm

c. 200 mm

d. 100 mm

See FSG Rules 2023 T12.1.2

10 / 10

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 be prepared to overtake a slower car on the racing line

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

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

See FSG Rules 2023 D2.1.9

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

installation cost: 400.000 EUR
machine cost: 20.000 EUR x 5 years = 100.000 EUR
material cost: 70 EUR x 950 cars = 66.500 EUR
Total cost: 566.500 EUR
Cost per car: 566.500 EUR /950 = 596 EUR

1 / 20

To build your race car you need a part what can be bought on the public market for 400 EUR per piece. Your plan is to sell 950 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 70 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

2 / 20

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

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

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

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

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

See FSG Rules 2023 D2.1.10

3 / 20

In which currency must the costs be displayed in the CBOM?

a. USD (US Dollar)

b. GBP (British Pound)

c. EUR (Euro)

d. In the team’s national currency

See FSG Rules 2023 S2.6.4

4 / 20

What is the maximum amount of points a EV team can recieve at an event?

a. Is different at each competition

b. 600

c. 800

d. 1000

See FSG Rules 2023 A1.2.5

5 / 20

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

6 / 20

What is the total surface area of percy (including connection pieces)? Persume the connection pieces have a width of 20mm. Give answer in miles to one decimal place

See FSG rules 2023:

dimensions: T4.3.4 Figure 14

7 / 20

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

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

8 / 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)

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

9 / 20

Which statements are correct? (multiple choice)

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

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

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

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

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

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

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

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

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

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

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

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

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

10 / 20

What is the minium number of points your team can get when participating in th BPP finals?

See FSG Rules 2023 S1.4.6

11 / 20

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

a. 26 mm

b. 22 mm

c. 24 mm

d. 20 mm

See FSG Rules 2023 11.4.4

12 / 20

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

a. Steering System

b. Electrical

c. Aerodynamics

d. Brake System

See FSG Rules 2023 S2.4.4

13 / 20

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

14 / 20

How long is water sprayed on the car during the rain test?

a. 120 secs

b. 60 secs

c. 45 secs

d. 100 secs

See FSG Rules 2023 IN9.2.7

15 / 20

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

16 / 20

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

17 / 20

The Electrical System Officer must: (Multiple Choice)

a. Attend a separate ESO meeting on the first day of the competition

b. Switch off the Tractive System Master Switch during driver change

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

d. Be the one driving the accumulator cart

e. Present whenever work is performed on the Tractive System

f. Not be the team captain

g. Be present during driver change

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

18 / 20

Your team completes their best autocross run in 71.2 secs. The fastest team overall completed their run in 71 secs. How many points did your team recieve for autocross? Round to one decimal place.

See FSG Rules 2023 D6.3.2 & D9.1.7

19 / 20

What is the penatly for driving off course during acceleration?

a. 2 secs

b. did not finish

c. disqualified

d. 30 secs

See FSG Rules 2023 D9.1.7

20 / 20

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

a. 0.2 secs

b. 5 secs

c. 2 secs

d. did not finish

See FSG Rules 2023 D9.1.7

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

1 / 10

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.

2 / 10

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 functioning even if HV- or LV-power supply failed or is being disconnected

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

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

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

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

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

See FSG rules 2023: T6.3

3 / 10

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

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

b. They must be in a rigid and sturdy casing

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

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

See FSG rules 2023 T11.7.7

4 / 10

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

a. A device above the segments to prevent arc flashes

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. An LV energy storage with a lithium iron phosphate chemistry

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

5 / 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. Travel is defined by the Perimeter at the widest radius

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

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

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

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

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

FSG Rules 2023: T11.8.1, T11.8.5

6 / 10

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

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

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. Unarmored plastic brake lines are prohibited

See FSG rules 2023: T6.1.10

7 / 10

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.

8 / 10

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

9 / 10

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

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

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

c. TS current when the LVS is active

d. Cell temperatures of 30% most thermally critical cells

e. All cell voltages that are SCS

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

10 / 10

You want to drive with a Lithium Polymer Cell with 3.2 Ah and weighing 70 g. Which of the following configurations would be allowed by the rules? Hint: Unorm = 3.7 V, Umax = 4.2 V

a. 5 compartments in series with 4p22s configurations

b. 4 compartments in series with 6p26s configurations

c. 6 compartments in series with 4p28s configurations

d. 4 compartments in series with 4p32s configurations

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 10

Calculate delta_h1 and delta_h2 in mm (integers), seprate the value with a comma, no space in between, delta_h1 is the first value (exp.: 126,4)

2 / 10

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)

3 / 10

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

4 / 10

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

5 / 10

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

6 / 10

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

7 / 10

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

8 / 10

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

9 / 10

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

10 / 10

A spring in a church clock has a spring constant of 10 N/m. What is its elastic potential energy store if it is stretched 8 m? Give answer in Joules to three significant figures.

E = 0.5 * k * e^2

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%