Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

What is the penatly for driving off course during endurance?

a. 30 secs

b. 2 secs

c. 10 secs

d. disqualified

See FSG Rules 2023 D9.1.7

2 / 10

What is IMD short for ?

a. Impact Measuring Device

b. Insulation Monitoring Device

c. Instructing Material Disposition

3 / 10

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

a. Animal voices, except goat voices, are forbidden

b. The maximum duration is one secound

c. The used sound must be easily recognisable

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

See FSG Rules 2023 E4.12

4 / 10

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

a. 60 secs

b. 45 secs

c. 120 secs

d. 100 secs

See FSG Rules 2023 IN9.2.7

5 / 10

During the BPP, who is allowed to answer questions from the judges?

a. Only the presenting team member

b. Any team member introduced at the beginning

c. Only the team member who developed the business plan

6 / 10

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

a. 35

b. 35 %

c. 20

d. 13.3 %

See FSG Rules 2023 S3.7.2

7 / 10

How many cones do you need to build the skidpad track

a. 60

b. 64

c. 58

8 / 10

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

9 / 10

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

a. AIRs

b. Cockpit Shutdown Button

c. BOTS

d. RES

See FSG Rules 2023 EV 6.1

10 / 10

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. 1.1 m

b. 0.8 m

c. 1.25 m

d. 9.3 dm

See FSG Rules 2023 S3.2

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 20

What is the minimum allowed ground clearance, excluding driver?

a. not defined in rules

b. 35 mm

c. 30 mm

d. 25 mm

See FSG Rules 2023 T2.2.1

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

2 / 20

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

See FSG Rules 2023 A5.3.2

3 / 20

A team missed the intial deadline for a document and submitted this 49 hours after the deadline. After that the team’s document got accepted. The team will recieve a 10 point penalty.

a. False

b. True

See FSG Rules 2023 A5.3.1

4 / 20

A team missed the intial deadline for a document and submitted this 24 hours after the deadline. After that the team’s document got accepted. The team will recieve a 10 point penalty.

a. False

b. True

5 / 20

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

a. 150 mm

b. 200 mm

c. 50 mm

d. 250 mm

See FSG Rules 2023 T12.2.2 and T12.1.2

6 / 20

What is the penatly for driving off course during endurance?

a. 2 secs

b. disqualified

c. 10 secs

d. 30 secs

See FSG Rules 2023 D9.1.7

See FSG Rules 2023 A1.2.7

7 / 20

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?

8 / 20

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

9 / 20

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

10 / 20

How many teams can be registered per university? (Multiple Choice)

a. Two teams but they cannot attend the same event at the same time

b. Only one team if there are driverless features on the car

c. Two teams but only if no member is actively working in both teams at the same time

d. Only one team no matter the CV or EV

e. Two teams but only if one is CV and one is EV

See FSG Rules 2023 A4.1

11 / 20

The Electrical System Officer must: (Multiple Choice)

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

b. Be present during rain test

c. Be present during accumulator inspection

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

e. Not be part of the static events

f. Not enter the dynamic area

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

12 / 20

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

a. 20 mm

b. 24 mm

c. 26 mm

d. 22 mm

See FSG Rules 2023 11.4.4

13 / 20

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

14 / 20

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. No, because it should be removable during technical inspection

b. No, the button is too small

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

d. No, because its red

e. 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

See FSG Rules 2023 T11.4

15 / 20

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

16 / 20

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

a. As many as the team wants

b. One set per discipline

c. One set including the practice area and brake test

d. One set excluding the practice area and brake test

See FSG Rules 2023 D3.2.4

17 / 20

The Electrical System Officer must: (Multiple Choice)

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

b. Be present during driver change

c. Be the one driving the accumulator cart

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

e. Present whenever work is performed on the Tractive System

f. Be a valid team member

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

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

18 / 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

19 / 20

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

a. 41 mm

b. 40 mm

c. 32 mm

d. 45 mm

e. 24 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)

20 / 20

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

a. 75

b. There is no lower limit

c. 71

d. 70

See FSG Rules 2023 S1.4.7

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

1 / 10

A capacitor with a capacitance of 100 μF is currently charged to a voltage of 199.8V. How much additional energy is needed to charge it to a voltage of 301.4V. Give answer to 4 significant figures in Joules

W = 0.5 * C * U^2

∆W = W_end – W_start = 0.5 * C ((U_end)^2 – (U_start)^2)

2 / 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.

3 / 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

4 / 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. 6 compartments in series with 4p28s configurations

b. 4 compartments in series with 6p26s configurations

c. 5 compartments in series with 4p22s configurations

d. 4 compartments in series with 4p32s configurations

5 / 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)

6 / 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

7 / 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.

8 / 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 a red light on a black surface

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

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

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

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

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

See FSG rules 2023: T6.3

9 / 10

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

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

b. NiMH type cells are allowed

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

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

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

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

h. 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

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

10 / 10

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

a. Unarmored plastic brake lines are prohibited

b. 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

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

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

See FSG rules 2023: T6.1.10

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 10

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

2 / 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

3 / 10

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

4 / 10

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

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. p1>p2>p3

c. p1=p2=p3

d. p2>p3>p1

e. p2>p1>p3

6 / 10

Frage

a. Depends on y

b. Yes

c. Nein

7 / 10

Your team is the first car at the design event during FSN2022 and it’s quite cold for this time of the year, 12 degrees C. To impress the judges, you decide to make some tea for them. What is the minimum required time to prepare the tea, knowing that you have to boil 4 tea cups of 370ml each and you have an electrical heater with a power of 500W. Give your answer to the nearest whole number in secs.

Q= m * c * Δ𝑇
P * t = Q
Sub-in equations and rearrange for t

8 / 10

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

9 / 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

10 / 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)

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%