Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

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

a. 2 mins

b. 3 mins

c. 5 mins

d. as long as the team requires

See FSG Rules 2023 D7.5.4

2 / 10

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

a. 6

b. As many as the team wants

c. 4

d. 5

See FSG Rules 2023 D1.1.1

3 / 10

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

a. TSAL

b. Inertia Switch

c. BOTS

d. LVMS

See FSG Rules 2023 EV6.1

4 / 10

In the event of unsportsmanlike conduct, 25 penalty points will be deducted from the team’s overall score. A second violation will result in an additional 100 penalty points deducted from the team’s overall score.

a. False

b. True

See FSG Rules 2023 A4.3.1

5 / 10

For the Cost and Manufacturing discipline, which statement is correct regarding „bought parts“?

a. Any part purchased from a supplier is a "bought part"

b. Modified bought parts are considered "make parts"

c. Bought parts must include all manufacturing emissions in the calculation

d. Only catalog parts may be designated as "bought parts"

6 / 10

What is the penatly for driving off course during acceleration?

a. 2 secs

b. disqualified

c. did not finish

d. 30 secs

See FSG Rules 2023 D9.1.7

7 / 10

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

a. 50 %

b. 25 %

c. 30 %

d. 40 %

See FSG Rules 2023 S2.10.1

8 / 10

What is the minimum number of points a team recieves for finishing an autocross run?

a. 8

b. 10

c. Depends on the run time

d. 13

See FSG Rules 2023 D6.3.1

9 / 10

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

a. 20.25 m

b. 15.25 m

c. 16.25 m

d. 21.25 m

See FSG Rules 2023 D4.1.2

10 / 10

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

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 20

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

a. 10 secs

b. 0.2 secs

c. 2 secs

d. disqualified

See FSG Rules 2023 D9.1.7

2 / 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

3 / 20

The Electrical System Officer must: (Multiple Choice)

a. Be present during driver change

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

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

d. Not be the team captain

e. Present whenever work is performed on the Tractive System

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

g. Be the one driving the accumulator cart

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

4 / 20

What does the red flag mean during the driving disciplines?

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

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 slow down, something has happened on track. No overtaking unless directed by track marshals

See FSG Rules 2023 D2.1.8

5 / 20

Which of the following requirements is a must for all types of vehicles, when moving the vehicle on the competition site?

a. Vehicles must be pushed at a normal walking pace by means of a red pushbar

b. Detached master switch

c. A registered driver wearing the required driver equipment as defined in T 13.3 including helmet, arm restraints and balaclava having full control of steering and braking

d. Two team members walking on either side of the vehicle

See FSG Rules 2023 A.6.7

6 / 20

The Electrical System Officer must: (Multiple Choice)

a. Be present during driver change

b. Be a valid team member

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

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

e. Be the one driving the accumulator cart

f. Present whenever work is performed on the Tractive System

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

7 / 20

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

8 / 20

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

9 / 20

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

Your team completes their best manual acceleration run in 6.0 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

Hint: if formula gives a negative answer, then the team only recieve the basic 3.5 points

11 / 20

Your team reiceves 59.3 points for their autocross run. The fastest time overall was 71.9 secs. How long was your team’s fastest run? Round to one decimal place.

See FSG Rules 2023 D6.3.2 & 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

12 / 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. (FS 2025 Rules)

13 / 20

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

a. 2

b. 2 with an additional Autonomous System Responsible

c. As many as they like

d. 3

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

f. 4

See FSG Rules 2023 A4.3.1

14 / 20

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

a. 100 mm

b. 75 mm

c. 50 mm

d. 150 mm

See FSG Rules 2023 T12.2.2

15 / 20

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

a. 800

b. 600

c. Is different at each competition

d. 1000

See FSG Rules 2023 A1.2.5

16 / 20

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

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

17 / 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

18 / 20

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. 1.25 m

b. 0.8 m

c. 1.1 m

d. 9.3 dm

See FSG Rules 2023 S3.2

19 / 20

What is the diameter of the inside skidpad circle?

a. 15.5 m

b. 15 m

c. various between events

d. 15.25 m

See FSG Rules 2023 D4.1.2

20 / 20

Can a team be eliminated from the Engineering Design Event by the judges, if every document of theirs was accepted and they are present at the Engineering Design Event?

a. Yes, if the team did not pass any scrutineering prior

b. No, if a team is present at the event, the judges are obligated to evaluate their performance

c. Yes, if the judges consider the number of the team members present at the discussion insufficient

d. Yes, if the judges consider the vehicle to be in unfinished state

See FSG Rules 2023 S3.5.1

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

1 / 10

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

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

b. Spare TSAC

c. A device above the segments to prevent arc flashes

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

e. Every wire used inside of the TSAC

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

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

2 / 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

3 / 10

Which statements about the travel of the driving pedal is correct

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

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

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

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

e. Travel is defined as the angle from resting position to fully applied in degrees

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

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

FSG Rules 2023: T11.8.1, T11.8.5

4 / 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

5 / 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 include overcurrent protection that rips at or below the maximum specified discharge current of the cells

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

d. They must be in a rigid and sturdy casing

See FSG rules 2023 T11.7.7

6 / 10

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

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

b. Unarmored plastic brake lines are prohibited

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. 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

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

8 / 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 typically have the lowest specific energy

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

c. The Nickel based batteries have the lowest nominal voltage

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

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

no solution currently

9 / 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.

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. 4 compartments in series with 6p26s configurations

b. 4 compartments in series with 4p32s configurations

c. 5 compartments in series with 4p22s configurations

d. 6 compartments in series with 4p28s configurations

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 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

2 / 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 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

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

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

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

See FSG rules 2023 T3.2

3 / 10

A metal piece heated to

θ_1,M=1000∘C

with a mass of

M_M=6.5 kg

was cooled in a completely heat-insulated iron container filled with water. The mass of the water in the container is

M_W=10 kg

and the mass of the container is

M_B=2 kg.

The initial temperatures of the water and the container were the same and amounted to

θ_1,W=10∘C

. After complete thermal equilibrium between the immersed metal piece, the water, and the container, a temperature of

was established.
What is the average specific heat capacity of the metal piece

c

in the temperature range between

and

Input the result in kJ/(kg*K), round to 3 decimal numbers sperated by a point (example: 0.136).

4 / 10

Frage

a. Depends on y

b. Nein

c. Yes

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

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

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

An air stream

dot{M}_L = 5.5 kg/s,

cp_L=1 kJ/(kgK)

is to be heated in a plate heat exchanger from

θ_L′=20∘C

θ_L′′=150∘C

. For this purpose, a flue gas stream

dot{M}_R = 7.22

cp_R=1.1 kJ/(kgK)

with a temperature of

θ_R′=300∘C

is available. The overall heat transfer coefficient is

W/(m^2*K)

.
What is the required heating surface AAA if the fluid streams are arranged in counterflow?

a. 328,1 m^2

b. 314,12 m^2

c. 281,7 m^2

9 / 10

A lorry contains an engine with a power of 2.78 J/s. The lorry drives for 36 mins. Calculate the energy transferred in kJ rounded to three decimal places.

P = E/t = W/t

10 / 10

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

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%