Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

1. What is the minimum allowed static ground clearance, including driver?

a. 30 mm

b. 20 mm

c. 35 mm

d. 25 mm

See FSG Rules 2023 T2.2.1

2 / 10

2. 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

3 / 10

3. What is the diameter of the inside skidpad circle?

a. 15 m

b. 15.25 m

c. 15.5 m

d. various between events

See FSG Rules 2023 D4.1.2

4 / 10

4. Are teams allowed to decide whether they drive on rain tires or slicks by themselves?

a. yes, it’s always their decision

b. yes, in damp wheather

c. no

5 / 10

5. 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 judges consider the number of the team members present at the discussion insufficient

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

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

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

See FSG Rules 2023 S3.5.1

6 / 10

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

a. 4

b. 6

c. 5

d. 3

See FSG Rules 2023 D1.1.3

7 / 10

7. What is IMD short for ?

a. Instructing Material Disposition

b. Impact Measuring Device

c. Insulation Monitoring Device

8 / 10

8. What does the red flag mean during the driving disciplines?

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

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

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

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

9 / 10

9. 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

10 / 10

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

a. 2

b. 1

c. Isn’t mentioned in the rules

d. 4

See FSG Rules 2023 T2.6.2

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 63%

Quiz „Intermediate“

1 / 20

The Electrical System Officer must: (Multiple Choice)

a. Not enter the dynamic area

b. Not be part of the static events

c. Be the driver

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

e. Be present during driver change

f. Be the driver if there is another ESO on the team

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

h. Not be the team captain

i. Be contactable by phone from the officials between 8 am and 8 pm during the event

See FSG Rules 2023 A4.3.6, IN9.2.2 (& A4.3.3, A6.7.2), D7.5.2 & A4.4.2

2 / 20

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

a. LVMS

b. TSAL

c. Inertia Switch

d. BOTS

See FSG Rules 2023 EV6.1

3 / 20

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

a. 75 mm

b. 150 mm

c. 100 mm

d. 50 mm

See FSG Rules 2023 T12.2.2

4 / 20

4. Which of these is/are not a penalty during autocross? (Multiple choice)

a. did not finish

b. 2 secs

c. 0.2 secs

d. 5 secs

See FSG Rules 2023 D9.1.7

5 / 20

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

a. Detached master switch

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. Vehicles must be pushed at a normal walking pace by means of a red pushbar, equipped with a fire extingusher

See FSG Rules 2023 A.6.7

6 / 20

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

a. 22 mm

b. 24 mm

c. 20 mm

d. 26 mm

See FSG Rules 2023 11.4.4

7 / 20

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

a. 115

b. 10

c. 60.75

d. 50.0

See FSG Rules 2023 S2.10.1

8 / 20

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

a. 45°

b. 30°

c. 50°

d. 60°

See FSG Rules 2023 IN7.1.3

9 / 20

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

a. DSS

b. SES

c. ESF

d. TVSD

See FSG Rules 2023 S3.4.1

10 / 20

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

11 / 20

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

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

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

See FSG Rules 2023 D2.1.8

12 / 20

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

a. 24 mm

b. 45 mm

c. 41 mm

d. 40 mm

e. 32 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)

13 / 20

13. 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

14 / 20

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

a. False

b. True

See FSG Rules 2023 S3.2

15 / 20

15. 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. Each attachment must support a load of 19.5 kN

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

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

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

See FSG rules 2023: T4.5.3

16 / 20

16.

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. Present whenever work is performed on the Tractive System

d. Not be the team captain

e. Be the one driving the accumulator cart

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

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

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

17 / 20

17. 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. 0.8 m

b. 9.3 dm

c. 1.1 m

d. 1.25 m

See FSG Rules 2023 S3.2

18 / 20

18. For the rain test: (Multiple Choice)

a. All wheels must be removed

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

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

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

e. Must be in ready-to-drive mode

f. The vehicle must have passed the accumulator inspection

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

19 / 20

19. What is the length of the acceleration track?

a. 75 m

b. 50 m

c. 60 m

d. 100 m

See FSG Rules 2023 D5.1.1

20 / 20

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

a. 71

b. There is no lower limit

c. 70

d. 75

See FSG Rules 2023 S1.4.7

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 65%

Quiz „Electrical“

1 / 10

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

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

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

c. Sensors are out of range

d. A sensor input is shorted to Ground

e. Software parameters are set wrong

2 / 10

2. 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

3 / 10

3. 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.

4 / 10

4. 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

5. Which of the following statements is false regarding the difference between Lead-based batteries, Nickel-based batteries and Lithium-based batteries?

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

b. The Nickel based batteries typically have the lowest specific energy

c. The Nickel based batteries have the lowest nominal voltage

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

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

no solution currently

6 / 10

6. Which statements about the travel of the driving pedal is correct

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

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

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

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

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

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

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

FSG Rules 2023: T11.8.1, T11.8.5

7 / 10

7. 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)

8 / 10

8. 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.

9 / 10

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

a. Neither of these

b. Both

c. Only Verilog

d. Only VHDL

10 / 10

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

a. Unarmored plastic brake lines are prohibited

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

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 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

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Quiz „General Engineering“

1 / 10

1. 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. p1=p2=p3

b. p2>p3>p1

c. p2>p1>p3

d. p1>p2>p3

e. p2=p1>p3

2 / 10

2. 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

In a cylinder, air is compressed isothermally at ambient temperature (

θ_U=20∘C)

p_{1} = 0.1 MPa

p_{2} = 0.5 MPa

Calculate the change in the specific entropy of the air in the cylinder.

Round to two decimal numbers sperated by a point. Input in J/(kgK). (Example -365.26)

4 / 10

4. 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

5 / 10

5. 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

6 / 10

6. 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

7 / 10

7. 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

8 / 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. 308,.64°F

b. 177.06°F

c. 254.53°F

9 / 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).

10 / 10

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. 281,7 m^2

b. 314,12 m^2

c. 328,1 m^2

Dein Ergebnis ist

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