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. as long as the team requires

b. 5 mins

c. 2 mins

d. 3 mins

See FSG Rules 2023 D7.5.4

2 / 10

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

a. 20.25 m

b. 16.25 m

c. 15.25 m

d. 21.25 m

See FSG Rules 2023 D4.1.2

3 / 10

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

4 / 10

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. 1

d. 2

See FSG Rules 2023 T2.6.2

5 / 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. 9.3 dm

c. 0.8 m

d. 1.25 m

See FSG Rules 2023 S3.2

6 / 10

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

a. USD (US Dollar)

b. EUR (Euro)

c. GBP (British Pound)

d. In the team’s national currency

See FSG Rules 2023 S2.6.4

7 / 10

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

a. 100 mm

b. 75 mm

c. 150 mm

d. 50 mm

See FSG Rules 2023 T12.2.2

8 / 10

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

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

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

See FSG Rules 2023 S3.5.1

9 / 10

An EV team without driverless components have 9 parts of scrutineering to pass before being allowed to compete on track.

a. False

b. True

See FSG Rules 2023 IN1.1.1

10 / 10

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

a. 4

b. As many as the team wants

c. 6

d. 5

See FSG Rules 2023 D1.1.1

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 20

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

a. 10 %

b. 20 %

c. 15 %

d. 25 %

See FSG Rules 2023 S1.4.1

2 / 20

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

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

b. Only one team no matter the CV or EV

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

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

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

See FSG Rules 2023 A4.1

3 / 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

4 / 20

Your team recieves 23.9 points for their autocross run. The fastest time overall was 82.3 secs. How long was your team’s fastest run? Round to one decimal place.

See FSG Rules 2023 D6.3.2 & D9.1.7

5 / 20

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

6 / 20

The Electrical System Officer must: (Multiple Choice)

a. Not be the team captain

b. Be present during driver change

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

d. Be one 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. 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

7 / 20

What are requirements of using a standard Impact Attenuator?

a. 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.

b. All of the above.

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

d. 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.

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

8 / 20

An official has the right to remove the scrutineering sticker from the car, if the car is no longer rule compliant.

a. False

b. True

9 / 20

What is the minimum tread depth of the rain tires?

a. 2.4 mm

b. 2.2 mm

c. 2.1 mm

d. 2.3 mm

See FSG Rules 2023 T2.6.1

10 / 20

The length of the acceleration track is 75m. Hypothetically the acceleration of the cars is constant, and linear, without slip. The vehicle starts from the starting line of the Acceleration track and then covers 75m. At the finish line, the speed of the racing car is 108 km/h.

How much time (in secs) is needed for the car complete the Acceleration Event and what was the acceleration of the car ( in m/s^2)? Give the answers as whole numbers sparated by a comma (?, ?).

Calculate acceleration: v^2= u^2+2as
Calculate time: s=ut+1/2 at^2

11 / 20

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

a. 2 mins

b. 5 mins

c. as long as the team requires

d. 3 mins

See FSG Rules 2023 D7.5.4

12 / 20

What is the penatly for driving off course during endurance?

a. 30 secs

b. disqualified

c. 10 secs

d. 2 secs

See FSG Rules 2023 D9.1.7

13 / 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

14 / 20

What is the penatly for driving off course during acceleration?

a. 2 secs

b. 30 secs

c. disqualified

d. did not finish

See FSG Rules 2023 D9.1.7

15 / 20

How many events may a driver drive during a competition?

a. one

b. As many as they like

c. three

d. two

See FSG Rules 2023 D1.1.2

16 / 20

Your team completes their best manual skidpad run in 4.0 secs but knocks down 11 cones. The fastest team overall completed their run in 4.1 secs. How many points did your team recieve for skidpad? Round to one decimal place.

See FSG Rules 2023 D4.4.3

See FSG Rules 2023 S1.4.7

17 / 20

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

18 / 20

The car is tipped to 60° during the tilt test?

a. True

b. False

See FSG Rules 2023 IN7.1.3

19 / 20

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

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

See FSG Rules 2023 D2.1.10

20 / 20

What is the minimum allowed ground clearance, excluding driver?

a. 30 mm

b. 25 mm

c. not defined in rules

d. 35 mm

See FSG Rules 2023 T2.2.1

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

1 / 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.

2 / 10

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

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

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

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

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

e. 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

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

h. NiMH type cells are allowed

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

3 / 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

4 / 10

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

a. Only Verilog

b. Neither of these

c. Only VHDL

d. Both

5 / 10

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

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

b. A device above the segments to prevent arc flashes

c. Every wire used inside of the TSAC

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

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

f. Spare TSAC

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

6 / 10

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

c. Software parameters are set wrong

d. A sensor input is shorted to Ground

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

7 / 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

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 measures least 10 cm2 with an even level of brightness

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

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

d. The brake light must be a red light on a black surface

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

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

See FSG rules 2023: T6.3

9 / 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

10 / 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.

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 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. 254.53°F

b. 177.06°F

c. 308,.64°F

2 / 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

3 / 10

Frage

a. Nein

b. Depends on y

c. Yes

4 / 10

During last year acceleration a top speed of 100 km/h was reached. Due to big improvements in the new drivetrain, the new vehicle reaches a top speed of 120 km/h. The aerodynamics chief has some worries about the stability of the rear wing bracing due to the higher aerodynamics load. Given the geometry below, by how much % does the bearing force in point A change in comparison to last year? (The aerodynamic package did not change and therefore some values can be assumed for both vehicles). Give answer rounded to one decimal place.

CL=3.8 CD=1.2 A=1 m² rho=1.1 kg/m³ L1=50 mm L2= 100 mm H1= 125 mm H2= 165mm

Create an equation with all forces rotated at point B: Fl*L1 + Fd*H2 + Fa*(L2-L1) = 0
Rearrange for Fa
Calculate force Fa with previous year speed
Calculate force Fa with this years speeed
Calculate the change in force in percentage.

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. p2=p1>p3

d. p1=p2=p3

e. p2>p3>p1

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

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

8 / 10

A helicopter of mass 4200 kg is carrying a crate using a light extensible rope. The crate has a total mass of 800 kg, including its contents. The helicopter and crate are accelerating upwards at 2.0 ms^-2. What is the tension in the rope? Use gravititational field strength g is 9,81 N/kg. Air resistance can be ignored. Give answer to nearest whole number in Newtons

Tension = net force -> Tension = m*a (of system) + m*g (of system)

9 / 10

A cantilever is subjected to forces

. Determine the bar force

F_{S 8}

Given F1=F4=F, F2=F3=2F, a

a. -6F

b. 7.27F

c. 2.85F

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. 314,12 m^2

b. 328,1 m^2

c. 281,7 m^2

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%