Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

1. What must the Technical Vehicle System Documentation include?

a. A written description

b. Three technical drawings showing the vehicle from the front, top, and side

c. A video presentation

2 / 10

2. Teams who remove their vehicle from the event site after
the event has begun will be disqualified from the event.

a. True

b. False

See FSG Rules 2023 S3.2

3 / 10

3. 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

4 / 10

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

a. 10 %

b. 25 %

c. 20 %

d. 15 %

See FSG Rules 2023 S1.4.1

5 / 10

5. What is BSPD short for?

a. Beer Supply Performance Distinction

b. Brake System Plausability Design

c. Brake System Plausibility Device

6 / 10

6. What is BOM short for?

a. Basics of Mechanics

b. Bill of Material

c. Beginning of Mission

7 / 10

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

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

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

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

See FSG Rules 2023 S3.5.1

8 / 10

8. 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

9 / 10

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

a. 3 mins

b. as long as the team requires

c. 5 mins

d. 2 mins

See FSG Rules 2023 D7.5.4

10 / 10

10. How far is the car tipped during the tilt test?

a. 60°

b. 45°

c. 50°

d. 30°

See FSG Rules 2023 IN7.1.3

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 20

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

a. Cockpit Shutdown Button

b. AIRs

c. BOTS

d. RES

See FSG Rules 2023 EV 6.1

2 / 20

2. 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

3 / 20

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

a. 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

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

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

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

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

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

4 / 20

4. What is the minimum tread depth of the rain tires?

a. 2.1 mm

b. 2.3 mm

c. 2.2 mm

d. 2.4 mm

See FSG Rules 2023 T2.6.1

5 / 20

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

a. 2 with an additional Autonomous System Responsible

b. 2

c. 3

d. As many as they like

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

f. 4

See FSG Rules 2023 A4.3.1

6 / 20

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

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

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

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

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

See FSG Rules 2023 D2.1.10

7 / 20

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

a. 150 mm

b. Large enough to read it from 20 m distance

c. 100 mm

d. 200 mm

See FSG Rules 2023 T12.1.2

8 / 20

The following items have to be on or attached to the push bar, if you are an EV team. (multiple choice)

a. A spare key for the Tractive System Low Voltage Master Switch

b. An additional pair of drivers gloves and a spare balaclava

c. Car number with a character height of at least 20 mm

d. A shutdown button with a minimum diameter of 24 mm

e. University name written on high contrast background

f. Contact details of the team captain

g. A multimeter with test leads rated for 600V CAT III or better

h. Two pairs of safety glasses

i. Red paint

j. All ESOQs printed out

k. An approved fire extinguisher

l. Two pairs of high voltage insulating gloves

See FSG 2023 Rules T13.1

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

9. 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

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

a. 150 mm

b. 50 mm

c. 200 mm

d. 250 mm

See FSG Rules 2023 T12.2.2 and T12.1.2

11 / 20

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

a. 100 mm

b. 150 mm

c. 75 mm

d. 50 mm

See FSG Rules 2023 T12.2.2

12 / 20

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

a. 3

b. 5

c. 4

d. 6

See FSG Rules 2023 D1.1.3

13 / 20

13.

The Electrical System Officer must: (Multiple Choice)

a. Be the one driving the accumulator cart

b. Be present during driver change

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

d. Present whenever work is performed on the Tractive System

e. Be a valid team member

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

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

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

14 / 20

14. 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

15 / 20

15.

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

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

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

c. Two teams but they cannot attend the same event 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

16 / 20

16. Your team completes their best autocross run in 84.9 secs and that was the fastest overall time. How many points did your team recieve for autocross? Round to one decimal place.

See FSG Rules 2023 A1.1.3, D6.3.2 & D9.1.7

17 / 20

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

a. 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

b. Detached master switch

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

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

See FSG Rules 2023 A.6.7

18 / 20

18. 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 including the practice area and brake test

c. One set per discipline

d. One set excluding the practice area and brake test

See FSG Rules 2023 D3.2.4

19 / 20

19. Your Team Sponsor offers you a Driver’s Harness. After examining the harness and the rules, an engineer in your team reports that the attachment of the harness can not be welded to the chassis structure. Furthermore, the engineer makes 4 statements. Which of these statements is true?

a. Lap and anti-submarine belts can be attached further than 100mm apart

b. The strength of all attachment points must be proven by physical testing

c. Each attachment must support a load of 19.5 kN

d. Harness attachments must use 10mm metric grade 8.8 bolts at minimum

See FSG rules 2023: T4.5.3

20 / 20

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

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

1 / 10

1. 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

2 / 10

2. 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

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

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

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

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

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

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

FSG Rules 2023: T11.8.1, T11.8.5

4 / 10

4. 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.

5 / 10

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

a. Spare TSAC

b. Every wire used inside of the TSAC

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

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

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

f. A device above the segments to prevent arc flashes

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

6 / 10

6. 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 4p32s configurations

c. 5 compartments in series with 4p22s configurations

d. 4 compartments in series with 6p26s configurations

7 / 10

7. 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.

8 / 10

8. Your team is considering two languages, Verilog and VHDL, for programming an FPGA. Which languages could be used?

a. Both

b. Only VHDL

c. Neither of these

d. Only Verilog

9 / 10

9. Your BSPD has been triggered although the driver did not touch the driving pedal. What could have gone wrong? (multiple choice)

a. Sensors are out of range

b. Software parameters are set wrong

c. The springs from the driving pedal are torn in two

d. The AMS signals a power of over 5kW and triggers the BSPD

e. A sensor input is shorted to Ground

10 / 10

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)

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 10

1. 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

2 / 10

2. 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

3 / 10

3. 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)

4 / 10

4. 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

5 / 10

5. 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

6 / 10

6. 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. 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 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

7 / 10

What temperature would occur at the stagnation point of an aircraft flying at a speed of

V_{1} = 2000 km/h

, assuming that the air behaves as an ideal gas under these conditions? The temperature of the undisturbed air is theta_1 = -30°C.

a. 177.06°F

b. 254.53°F

c. 308,.64°F

8 / 10

8. Frage

a. Yes

b. Depends on y

c. Nein

9 / 10

9. A ball at a height of 20ft on Earth with a gravitational field strength of 9.81 N/kg, gained 284 J of gravitational potential energy. Calculate the mass of the ball. Give answer to two decimal place in kg.

E = m * g * h

10 / 10

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

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%