Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

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

a. LVMS

b. BOTS

c. Inertia Switch

d. TSAL

See FSG Rules 2023 EV6.1

2 / 10

What is the penatly for driving off course during endurance?

a. 10 secs

b. 2 secs

c. 30 secs

d. disqualified

See FSG Rules 2023 D9.1.7

3 / 10

Which of the following requirements are a must for all non DV electric cars with wings, when moving the vehicle on the competition site? (Multiple choice)

a. Autonomes System must be deactivated

b. Detachable key/handle of the tractive system master switch must be removed

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. Two team members walking on either side of the vehicle

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

See FSG Rules 2023 A.6.7

4 / 10

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

5 / 10

What happens if a driver completes more than two runs in a discipline?

a. There is a time penalty

b. The run does not count

c. The team is disqualified

d. The driver is disqualified

6 / 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

7 / 10

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

8 / 10

How far is the car tipped during the tilt test?

a. 30°

b. 60°

c. 50°

d. 45°

See FSG Rules 2023 IN7.1.3

9 / 10

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

10 / 10

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

a. EUR (Euro)

b. GBP (British Pound)

c. In the team’s national currency

d. USD (US Dollar)

See FSG Rules 2023 S2.6.4

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 20

What is the length of the acceleration track?

a. 100 m

b. 75 m

c. 50 m

d. 60 m

See FSG Rules 2023 D5.1.1

See FSG Rules 2023 A1.2.7

2 / 20

As an EV Team without DV, what is your maximum total score of Busniess Plan Presentation, Cost and Manufacturing, Skid Pad, Acceleration and Efficiency together?

3 / 20

The Electrical System Officer must: (Multiple Choice)

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

b. Present whenever work is performed on the Tractive System

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

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

e. Be a valid team member

f. Be present during driver change

g. Be the one driving the accumulator cart

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

4 / 20

Your team reiceves 59.3 points for their autocross run. The fastest time overall was 71.9 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

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. 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

c. Detached master switch

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

See FSG Rules 2023 A.6.7

6 / 20

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

a. 3

b. 5

c. 6

d. 4

See FSG Rules 2023 D1.1.3

7 / 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

8 / 20

How long is water sprayed on the car during the rain test?

a. 120 secs

b. 100 secs

c. 60 secs

d. 45 secs

See FSG Rules 2023 IN9.2.7

9 / 20

What is the total surface area of percy (including connection pieces)? Persume the connection pieces have a width of 20mm. Give answer in miles to one decimal place

See FSG rules 2023:

dimensions: T4.3.4 Figure 14

10 / 20

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

a. 50 %

b. 25 %

c. 40 %

d. 30 %

See FSG Rules 2023 S2.10.1

11 / 20

The Electrical System Officer must: (Multiple Choice)

a. Be the one driving the accumulator cart

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

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

d. Be present during driver change

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

f. Present whenever work is performed on the Tractive System

g. Not be the team captain

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

12 / 20

Your team completes their best manual skidpad run in 5.9 secs. The fastest team overall completed their run in 5.1 secs. How many points did your team recieve for skidpad? Round to one decimal place.

See FSG Rules 2023 D4.4.3

13 / 20

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

a. 5 secs

b. 0.2 secs

c. did not finish

d. 2 secs

See FSG Rules 2023 D9.1.7

14 / 20

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

a. 10

b. Depends on the run time

c. 13

d. 8

See FSG Rules 2023 D6.3.1

15 / 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

16 / 20

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

a. Isn’t mentioned in the rules

b. 2

c. 1

d. 4

See FSG Rules 2023 T2.6.2

17 / 20

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

a. 35 mm

b. 20 mm

c. 25 mm

d. 30 mm

See FSG Rules 2023 T2.2.1

18 / 20

Which system is the content of CCBOM in 2026?

a. Engine and Tractive System

b. Wheels, Wheel Bearings and Tires

c. Autonomous System

d. Chassis and Body

See FSG Rules 2023 S1.4.1

19 / 20

For the rain test: (Multiple Choice)

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

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

c. Must be in ready-to-drive mode

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

e. The vehicle must have passed the accumulator inspection

f. All wheels must be removed

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

20 / 20

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

a. BOTS

b. LVMS

c. Inertia Switch

d. TSAL

See FSG Rules 2023 EV6.1

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 57%

Quiz „Electrical“

1 / 10

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

a. Neither of these

b. Only Verilog

c. Both

d. Only VHDL

2 / 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)

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

c. Spare TSAC

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

e. A device above the segments to prevent arc flashes

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

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

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.

6 / 10

Which statements about the travel of the driving pedal is correct

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

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

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

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

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

FSG Rules 2023: T11.8.1, T11.8.5

7 / 10

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

8 / 10

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

a. 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

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

c. 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

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

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

f. NiMH type cells are allowed

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

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

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

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 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. 4 compartments in series with 6p26s configurations

d. 5 compartments in series with 4p22s configurations

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 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

2 / 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)

3 / 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. 2.85F

c. 7.27F

4 / 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

5 / 10

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

6 / 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

7 / 10

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

8 / 10

A cat of mass 12 kgs ran at 65mph. What is its kinetic energy? Answer in J to the nearest whole number

KE= 0,5 * m * v^2

9 / 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. 308,.64°F

c. 254.53°F

10 / 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

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%