Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

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

a. USD (US Dollar)

b. EUR (Euro)

c. In the team’s national currency

d. GBP (British Pound)

See FSG Rules 2023 S2.6.4

2 / 10

What is the minimum number of drivers allowed for each team at an event?

a. 1

b. 3

c. 4

d. 2

3 / 10

Which of the following must be included in the Bill of Material (BOM)?

a. Only dry tires and wheels

b. All parts fitted to the prototype vehicle at any time during the event

c. All fasteners

d. Consumables

4 / 10

The following parts are part of the Shutdown Circuit (Multiple choice)

a. AIRs

b. BOTS

c. RES

d. Cockpit Shutdown Button

See FSG Rules 2023 EV 6.1

5 / 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

6 / 10

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

7 / 10

What is the minimum height of the university name on both sides of the car?

a. 50 mm

b. 75 mm

c. 150 mm

d. 100 mm

See FSG Rules 2023 T12.2.2

8 / 10

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

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

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

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

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

See FSG Rules 2023 D2.1.10

9 / 10

What is the minimum height of the university name and the car number added together?

a. 50 mm

b. 150 mm

c. 200 mm

d. 250 mm

See FSG Rules 2023 T12.2.2 and T12.1.2

10 / 10

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

a. 6

b. 5

c. As many as the team wants

d. 4

See FSG Rules 2023 D1.1.1

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 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

2 / 20

Your team completes their best autocross run in 84.0 secs but knocks down one cone. The fastest team overall completed their run in 75.7 secs but knocked down three cones. How many points did your team recieve for autocross? Round to one decimal place.

See FSG Rules 2023 D6.3.2 & D9.1.7

3 / 20

What is the minimum tread depth of the rain tires?

a. 2.4 mm

b. 2.3 mm

c. 2.1 mm

d. 2.2 mm

See FSG Rules 2023 T2.6.1

4 / 20

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

a. BOTS

b. LVMS

c. Inertia Switch

d. TSAL

See FSG Rules 2023 EV6.1

5 / 20

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

a. 71

b. 75

c. There is no lower limit

d. 70

See FSG Rules 2023 S1.4.7

6 / 20

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

a. 35 %

b. 20

c. 35

d. 13.3 %

See FSG Rules 2023 S3.7.2

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

7 / 20

Which statements are correct? (multiple choice)

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

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

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

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

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

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

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

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

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

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

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

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

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

8 / 20

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 / 20

What does a black flag mean?

a. driver must immediately pull over on track

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

c. session has been completed

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

See FSG Rules 2023 D2.1.3

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

10 / 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

11 / 20

Your team completes their best manual acceleration run in 4.2 secs. 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 2026 D5.4.2

12 / 20

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

a. 20 %

b. 10 %

c. 15 %

d. 25 %

See FSG Rules 2023 S1.4.1

13 / 20

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

a. 5

b. 4

c. As many as the team wants

d. 6

See FSG Rules 2023 D1.1.1

14 / 20

For the rain test: (Multiple Choice)

a. All wheels must be removed

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

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

d. The vehicle must have passed the accumulator inspection

e. Must be in ready-to-drive mode

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

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

15 / 20

The Electrical System Officer must: (Multiple Choice)

a. Not enter the dynamic area

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

c. Not be part of the static events

d. Be present during accumulator inspection

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

f. Be present during rain test

See FSG Rules 2023 A4.3.6, A6.11.2 (& IN 1.4.1), IN9.2.2 (& A4.3.3, A6.7.2) & A4.4.2

16 / 20

What are requirements of using a standard Impact Attenuator?

a. Test data must be provided that the energy absorbed meets or exceeds 7350 J.

b. All of the above.

c. Vehicles with aerodynamic devices and/or sensors in front of the front bulkhead must not exceed the peak deceleration for the combination of the IA assembly and the non-crushable object and prove the design does not exceed 120 kN.

d. Test data must be provided by teams that the vehicle will be decelerated at a rate not exceeding 20 g average and 40 g peak.

See FSG rules 2023: T3.19.1 & T3.19.4

17 / 20

How many points are assigned for the BOM discussion in the Cost and Manufacturing Event?

a. 60.75

b. 50.0

c. 10

d. 115

See FSG Rules 2023 S2.10.1

18 / 20

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

a. Aerodynamics

b. Steering System

c. Electrical

d. Brake System

See FSG Rules 2023 S2.4.4

19 / 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

20 / 20

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

a. 10 secs

b. disqualified

c. 0.2 secs

d. 2 secs

See FSG Rules 2023 D9.1.7

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

1 / 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. Unarmored plastic brake lines are prohibited

d. 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

See FSG rules 2023: T6.1.10

2 / 10

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)

3 / 10

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. Only VHDL

d. Both

4 / 10

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

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

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 enclosed in a non-conductive, waterproof and acid resistant container

See FSG rules 2023 T11.7.7

5 / 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.

6 / 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.

7 / 10

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

8 / 10

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

a. 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

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

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

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

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

f. 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

g. NiMH type cells are allowed

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

9 / 10

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.

10 / 10

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

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 10

A team is in the process of validating the compliance of the shoulder harness bar used in their car. Choose the part in which their configuration is incompliant:

a. The attachments are positioned 220 mm apart, measured center to center, and have a thickness of 1.7 mm

b. The bar is bent (not straight) and the team uses an analysis method of inducing 7kN to each attachment in the horizontal plane to prove compliance

c. The steel tube has a thickness of 2 mm, and a 0.26% in carbon and 1.7% manganese content

d. From the driver’s shoulders rearwards to the mounting point or structural guide, the shoulder harness is 8° above the horizontal

See FSG rules 2023 T3.2

2 / 10

For a horizontally positioned, non-insulated steam pipe with a length of l=3 m and a diameter of d_a=0.1 the convective heat loss Q_point is to be calculated. The temperature of the surrounding air is θ_f=30∘C and that of the outer wall surface is θ_w=170∘C.

Input the result in kW and round to two decimal numbers seperated by a point without thr unit (example: 145.35)

3 / 10

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

4 / 10

A hall with a floor area of 500 m² is to be equipped with underfloor heating, which will be operated at an average temperature of 33°C.

What percentage of the floor area must be used as heating surface in order to ensure an indoor temperature of 18°C when the outside temperature is -15°C?

Result in m^2 as an integer

5 / 10

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

6 / 10

Calculate the cornering speed during Skidpad (you can use the centerline radius in the rules) using following information:

μ_y = 1.4, m = 240 kg, c_L = 3.2, A = 1 m^2, ρ = 1.1 kg/m^3

It is assumed, that there is no weight transfer and all 4 tires are at the optimal grip level. Answer in m/s rounded to one decimal place.

Formula for max corning speed:
(m*g + 0.5*rho*A*Cl*v^2)*μ = m * (v^2)/R

7 / 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

8 / 10

The previous season you could recuperate only 25% of your initially stored energy, but this season a big improvement in your drivetrain allows you to recuperate 63% of the initially stored energy. Knowing that you had 9.6 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 to one decimal place.

E_new = E_old * (1+0.25)/(1+0.63)

9 / 10

Calculate the maximum possible cornering speed (in kph) for the following FSAE car when going through a 20 m radius corner.

m = 260kg; cl *A * Rho = -6 kg/m; Tyre coefficient of friction = 1.5; g = 9.81 m/s^2.

The vehicle can be treated as a point mass, driving resistances neglected. Round to 1 decimal

Formula for max corning speed:
(m*g + 0.5*rho*A*Cl*v^2)*μ = m * (v^2)/R

10 / 10

Frage

a. Depends on y

b. Nein

c. Yes

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%