Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

What is the maximum duration of the Business Plan Presentation?

a. 5 mins

b. 10 mins

c. 15 mins

d. As long as the team requires

See FSG Rules 2023 S1.2.1

2 / 10

What is AMS short for?

a. Alternative Manufacturing Solution

b. Accumulator Management System

c. Autonomous Models Summary

3 / 10

During the BPP, who is allowed to answer questions from the judges?

a. Only the presenting team member

b. Only the team member who developed the business plan

c. Any team member introduced at the beginning

4 / 10

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

a. 50 %

b. 30 %

c. 40 %

d. 25 %

See FSG Rules 2023 S2.10.1

5 / 10

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

a. 70

b. 75

c. 71

d. There is no lower limit

See FSG Rules 2023 S1.4.7

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

What must the Technical Vehicle System Documentation include?

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

b. A written description

c. A video presentation

8 / 10

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

a. 200 mm

b. 100 mm

c. 150 mm

d. Large enough to read it from 20 m distance

See FSG Rules 2023 T12.1.2

9 / 10

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

a. 50.0

b. 115

c. 10

d. 60.75

See FSG Rules 2023 S2.10.1

10 / 10

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

a. 800

b. 1000

c. 600

d. Is different at each competition

See FSG Rules 2023 A1.2.5

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 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. as long as the team requires

c. 5 mins

d. 3 mins

See FSG Rules 2023 D7.5.4

2 / 20

You want to use this shutdown button left and right between the main hoop and the main hoop bracings. Is this application rules compliant?

a. No, the button is too small

b. No, because its red

c. Yes, if the buttons are within a 30 mm range at the same height measure from the bottom to the centre line of the buttons

d. No, because it should be removable during technical inspection

e. No, the button is not allowed to have a yellow background ring

See FSG Rules 2023 T11.4

3 / 20

What is not a ’system‘ in the Cost Reports Bill of Material?

a. Brake System

b. Steering System

c. Electrical

d. Aerodynamics

See FSG Rules 2023 S2.4.4

4 / 20

The team at an event with the highest points in the Buisness Plan Presentation but not reaching the finals has 67 points. Your team received 29 points but the topic of your team’s BPP didn’t meet the requirements defined in the rules. What is your Business Plan Presentation Score? Round to one decimal place

See FSG Rules 2023 S1.4.6 & S1.4.2

5 / 20

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

a. 2

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

c. 2 with an additional Autonomous System Responsible

d. 4

e. As many as they like

f. 3

See FSG Rules 2023 A4.3.1

6 / 20

What is the maximum duration of the Business Plan Presentation?

a. 15 mins

b. As long as the team requires

c. 10 mins

d. 5 mins

See FSG Rules 2023 S1.2.1

7 / 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. 1.1 m

b. 9.3 dm

c. 0.8 m

d. 1.25 m

See FSG Rules 2023 S3.2

8 / 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

9 / 20

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

a. 13

b. 10

c. Depends on the run time

d. 8

See FSG Rules 2023 D6.3.1

10 / 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

11 / 20

What is the minimum amount of ASR needed at the Event when being a DV Team?

a. 3

b. 1

c. 2

See FSG Rules 2023 S1.4.6

12 / 20

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

13 / 20

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

a. True

b. False

See FSG Rules 2023 IN1.1.1

14 / 20

What is the minimum allowed ground clearance, excluding driver?

a. 35 mm

b. 25 mm

c. not defined in rules

d. 30 mm

See FSG Rules 2023 T2.2.1

15 / 20

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

a. 16.25 m

b. 15.25 m

c. 21.25 m

d. 20.25 m

See FSG Rules 2023 D4.1.2

16 / 20

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

a. 24 mm

b. 20 mm

c. 26 mm

d. 22 mm

See FSG Rules 2023 11.4.4

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

c. 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

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

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

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

18 / 20

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

a. 800

b. Is different at each competition

c. 1000

d. 600

See FSG Rules 2023 A1.2.5

19 / 20

What is the minium number of points your team can get when participating in th BPP finals?

See FSG Rules 2023 S1.4.6

20 / 20

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

a. 50.0

b. 10

c. 115

d. 60.75

See FSG Rules 2023 S2.10.1

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

1 / 10

Which of the following statements about LV battery packs with lithium based chemistry other than LiFePo4 is not true?

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

b. They must be in a rigid and sturdy casing

c. They must include overcurrent protection that rips at or below the maximum specified discharge current of the cells

d. They must be enclosed in a non-conductive, waterproof and acid resistant container

See FSG rules 2023 T11.7.7

2 / 10

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. Travel is defined as a value from 0 to 1

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

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

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

FSG Rules 2023: T11.8.1, T11.8.5

3 / 10

The following processes have to be measured by the AMS. (Multiple choice)

a. Cell temperatures of at least 30% of all cells distributed in at least 75% of all segments

b. Cell voltages when the charger is connected to the accumulator

c. TS current when the LVS is active

d. Cell temperatures of 30% most thermally critical cells

e. All cell voltages that are SCS

f. TS current but only if it can be displayed during technical inspection

See FSG rules 2023: EV5.8.1, EV5.8.1 & EV5.8.3, EV5.8.10

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

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.

6 / 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

7 / 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)

8 / 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

9 / 10

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

a. 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

b. NiMH type cells are allowed

c. 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

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

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

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

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

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

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

10 / 10

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

a. A sensor input is shorted to Ground

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

c. Sensors are out of range

d. Software parameters are set wrong

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

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

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

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

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

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

2 / 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)

3 / 10

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

4 / 10

A 30 lbs model helicopter flying at 51 mph, calculate its kinetic energy. Answer in J to 3 significant figures.

KE=0,5 * m * v^2

5 / 10

The given gearbox consists of two gear sets with wheels 1, 2 and 3, 4 respectively. The wheels are fixed to their shafts. Calculate the drive speed (in rpm) of wheel 4?

Given: n1=600 rpm, z1=18, z2=90, z3=24, z4=120

Calculate gear ratio of gear 1 to gear 2: ratio: no. of teeth gear 1/no. of teeth gear2 -> ratio: z1/z2
Calculate output speed of gear 2: output speed = input speed * gear ratio
Gear 3 turns at same speed as gear 2
Calculate gear ratio of gear 3 to gear 4: ratio:z3/z4
Calculate output speed of gear 4: output speed = input speed * gear ratio = 24

6 / 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

7 / 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

8 / 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. p2>p3>p1

e. p1>p2>p3

9 / 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)

10 / 10

Answer in MJ, round to one decimal number (example 45.7), no unit in the answer

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%