Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 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

2 / 10

What does the yellow flag mean during the driving disciplines?

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

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

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

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

See FSG Rules 2023 D2.1.9

3 / 10

What does a black flag mean?

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

b. driver must immediately pull over on track

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

d. session has been completed

See FSG Rules 2023 D2.1.3

4 / 10

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

a. Cockpit Shutdown Button

b. AIRs

c. RES

d. BOTS

See FSG Rules 2023 EV 6.1

5 / 10

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

a. Only dry tires and wheels

b. Consumables

c. All fasteners

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

6 / 10

How many different tyre sizes can be used on a car during an Autocross run?

a. 2

b. Isn't mentioned in the rules

c. 4

d. 1

See FSG Rules 2023 T2.6.2

7 / 10

How many manual dynamic events can one team compete in during a competition?

a. 5

b. 6

c. 4

d. 3

See FSG Rules 2023 D1.1.3

8 / 10

Which of the following documents is directly evaluated during Engineering Design Event?

a. DSS

b. SES

c. TVSD

d. ESF

See FSG Rules 2023 S3.4.1

9 / 10

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

10 / 10

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

a. In the team’s national currency

b. EUR (Euro)

c. GBP (British Pound)

d. USD (US Dollar)

See FSG Rules 2023 S2.6.4

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 20

The Electrical System Officer must: (Multiple Choice)

a. Be present during accumulator inspection

b. Not be part of the static events

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

d. Be present during rain test

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

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

2 / 20

What is the area of the cockpit opening template (including the area allowed for the steering) in square inches rounded to one decimal place?

See FSG rules 2023: T4.2.1

Area: 282500mm -> convert to inch ^2

3 / 20

How far is the car tipped during the tilt test?

a. 50°

b. 60°

c. 45°

d. 30°

See FSG Rules 2023 IN7.1.3

4 / 20

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

a. 50 mm

b. 75 mm

c. 100 mm

d. 150 mm

See FSG Rules 2023 T12.2.2

5 / 20

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

a. 50 %

b. 30 %

c. 25 %

d. 40 %

See FSG Rules 2023 S2.10.1

6 / 20

How many different tyre sizes can be used on a car during an Autocross run?

a. 4

b. Isn't mentioned in the rules

c. 2

d. 1

See FSG Rules 2023 T2.6.2

7 / 20

What is the length of the acceleration track?

a. 75 m

b. 100 m

c. 60 m

d. 50 m

See FSG Rules 2023 D5.1.1

8 / 20

What are requirements of using a standard Impact Attenuator?

a. All of the above.

b. 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.

c. 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.

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

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

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

9 / 20

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

10 / 20

What is the minimum tread depth of the rain tires?

a. 2.2 mm

b. 2.3 mm

c. 2.1 mm

d. 2.4 mm

See FSG Rules 2023 T2.6.1

See FSG Rules 2023 A5.3.1

11 / 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

12 / 20

Which of the following statements are correct? (Multiple Choice)

a. Missing two gates of a slalom will result in two off-course penalties

b. If the driver fails to obey to a flag waved at him, a minute will be added to the time

c. The officials do not have to be informed if a team wants to change tyres during driver change

d. If the driver runs over debris outside of the track which results in a puncture, the team will be scored as DNF for the endurance

e. Missing a gate of a slalom will result in an off-course penalty

See FSG Rules 2023 D7.6.6 (& D7.6.7, D7.6.8), D9.1.5 & D9.1.12

13 / 20

The Electrical System Officer must: (Multiple Choice)

a. Not be the team captain

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. Be the one driving the accumulator cart

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 present during driver change

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

14 / 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. Two team members walking on either side of the vehicle

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. Detached master switch

See FSG Rules 2023 A.6.7

15 / 20

What is the penatly for driving off course during endurance?

a. 2 secs

b. 10 secs

c. 30 secs

d. disqualified

See FSG Rules 2023 D9.1.7

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

16 / 20

Which statements are correct? (multiple choice)

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

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

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

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

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

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

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

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

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

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

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

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

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

17 / 20

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

a. 35 %

b. 35

c. 13.3 %

d. 20

See FSG Rules 2023 S3.7.2

18 / 20

What does the yellow 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 driver must slow down, something has happened on track. No overtaking unless directed by track marshals

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

See FSG Rules 2023 D2.1.9

19 / 20

Your team completes their best autocross run in 84.0 secs but knocks down five cones. The fastest team overall completed their run in 1 min 13 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

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

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

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

a. Every wire used inside of the TSAC

b. A device above the segments to prevent arc flashes

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

d. Spare TSAC

e. A dividing element between the main fuse, the AIRs and the rest 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

4 / 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.

5 / 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

6 / 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.

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 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

9 / 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)

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. 5 compartments in series with 4p22s 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

You would like to drink a cup of very hot coffee with milk early in the morning, but you
are in a hurry and have only 5 minutes until you have to leave for work. At which time
after brewing should you add the cold milk to the coffee and stir in order to decrease the
temperature of the mixture as much as possible:
a) 0 minutes (immediately),
b) 2 minutes, or
c) 4 minutes?
Suppose that the stirring can be done instantaneously and that you need the last one
minute for drinking.

brew temperature C = 80 ◦C, temperature of milk = M = 10 ◦C, room temperature
0 = 20 ◦C, volume of coffee VC = 300 ml, volume of milk VM = 100 ml, specific heat
capacity of coffee cC = 4180 J/(kgK), specific heat capacity of milk cM = 3500 J/(kgK).

Please enter only the letter of the corresponding answer

a. 4 mins

b. 0 mins

c. 2 mins

The driving „force“ for the cooling of the coffee is the temperature difference between the warm coffee and the environment (room temperature), which leads to an exponential drop in coffee temperature. The temperature difference is greatest immediately after brewing. The later we stir in the milk, the lower the coffee temperature has already dropped. On the other hand, lowering the temperature by the milk becomes smaller the longer we wait.
So we let the coffee cool down on its own for as long as possible in order to bring about the temperature reduction by the cold milk at the end. The greatest possible cooling is therefore achieved when the milk is added after 4 minutes.

2 / 10

The kinetic energy of a 8 lbs 4 oz box as it was dropped reaching ground is 10125J. Determine the speed as it lands. Give answer to one decimal place in m/s.

KE = 0.5 * m * v^2

3 / 10

The Wet Skid Pad World Record was set at FSN2019 by TU Delft. They managed to set a time of 4.901 for the left circle and a time of 5.031 for the right circle. Assume the run was completed perfectly along the center line of the circles. What was their average speed during this record run? Give answer to two decimal places in mph.

Runtime (Rule D4.4.1) = (4.901+5.031)/2
Distance (Rule D4.1.2) = 18.25 * π
Speed = d/t

4 / 10

A refrigeration unit cools water of mass 3 kg by 33 °C. Find the thermal energy removed from the water. The specific heat capacity of water is 4186 J/kg celsius. Give answer to three significant figures in kJ.

density (rho) = m / V

5 / 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. 314,12 m^2

b. 328,1 m^2

c. 281,7 m^2

6 / 10

in m, to decimal numbers seperated by a point (example: 150.00), no unit requirment for the solution

7 / 10

In a gas pipe, the gas pressure pG is measured using a U-tube manometer connected at the bottom. Above the meniscus of the measuring liquid (mercury with density ρQ) on the gas side, there is a column of water with height h₂ and density ρW.
Question:
What negative pressure △pU (vacuum) exists in the pipe compared to the external pressure p₀?

Result in Pa, two decimal numbers seperated by a point (exp. 15.3). Do not put the Unit in the field below.

8 / 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 steel tube has a thickness of 2 mm, and a 0.26% in carbon and 1.7% manganese content

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

d. 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

See FSG rules 2023 T3.2

9 / 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 = 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

10 / 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).

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%