Quiz Preparation – UMD Racing e.V.

Quiz „Basics“

1 / 10

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

a. Depends on the run time

b. 13

c. 8

d. 10

See FSG Rules 2023 D6.3.1

2 / 10

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

a. TSAL

b. Inertia Switch

c. LVMS

d. BOTS

See FSG Rules 2023 EV6.1

3 / 10

What penalty is given for a doo in Skidpad?

a. 0.2 seconds

b. 2 seconds

c. DQ

d. 10 seconds

4 / 10

Which statement about the Ready-To-Drive sound is correct?

a. The used sound must be easily recognisable

b. It can be similar to the road noise, but must be louder

c. Animal voices, except goat voices, are forbidden

d. The maximum duration is one secound

See FSG Rules 2023 E4.12

5 / 10

Which of the following must be included in the Bill of Material (BOM)?

a. All fasteners

b. Consumables

c. All parts fitted to the prototype vehicle at any time during the event

d. Only dry tires and wheels

6 / 10

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

a. 30 mm

b. 20 mm

c. 25 mm

d. 35 mm

See FSG Rules 2023 T2.2.1

7 / 10

What is true about the Cones & Markings for Autonomous Running?

a. Details of the cones used and more detailed track layout figures can be found in the Event Handbook

b. The cones and markings must be also visible at night

c. The cones must have a minimum distance of 5 meters

8 / 10

What is the resulting time of a SkidPad run?

a. time of the left circle plus penalties

b. average of the time of the left and the time of right circle plus penalties

c. time of the right circle plus penalties

9 / 10

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

a. ESF

b. SES

c. TVSD

d. DSS

See FSG Rules 2023 S3.4.1

10 / 10

How many numbers of skidpad runs does a team have?

a. 4

b. 2

c. 1

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 64%

Quiz „Intermediate“

1 / 20

What is the diameter of the inside skidpad circle?

a. 15 m

b. 15.5 m

c. various between events

d. 15.25 m

See FSG Rules 2023 D4.1.2

2 / 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

3 / 20

What is the length of the acceleration track?

a. 60 m

b. 75 m

c. 50 m

d. 100 m

See FSG Rules 2023 D5.1.1

4 / 20

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

a. 115

b. 60.75

c. 10

d. 50.0

See FSG Rules 2023 S2.10.1

5 / 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

6 / 20

Your team completes their best manual acceleration run in 4.1 secs. The fastest team overall completed their run in 3.2 secs. How many points did your team recieve for acceleration? Round to one decimal place.

See FSG Rules 2023 D5.4.2

7 / 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

8 / 20

The Electrical System Officer must: (Multiple Choice)

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

b. Not enter the dynamic area

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

d. Not be part of the static events

e. Be present during rain test

f. Be present during accumulator inspection

See FSG Rules 2023 A4.3.6, A6.11.2 (& IN 1.4.1), IN9.2.2 (& A4.3.3, A6.7.2) & A4.4.2

9 / 20

Your team completes their best manual acceleration run in 6.0 secs. The fastest team overall completed their run in 3.9 secs. How many points did your team recieve for acceleration? Round to one decimal place.

See FSG Rules 2023 D5.4.2

Hint: if formula gives a negative answer, then the team only recieve the basic 3.5 points

10 / 20

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

a. 25 %

b. 50 %

c. 30 %

d. 40 %

See FSG Rules 2023 S2.10.1

11 / 20

The Electrical System Officer must: (Multiple Choice)

a. Present whenever work is performed on the Tractive System

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

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 the one driving the accumulator cart

f. Be a valid team member

g. Be present during driver change

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

12 / 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

13 / 20

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

b. Each attachment must support a load of 19.5 kN

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

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

See FSG rules 2023: T4.5.3

14 / 20

What is the penatly for driving off course during acceleration?

a. disqualified

b. did not finish

c. 2 secs

d. 30 secs

See FSG Rules 2023 D9.1.7

15 / 20

What is the maximum duration of the Business Plan Presentation?

a. 15 mins

b. As long as the team requires

c. 5 mins

d. 10 mins

See FSG Rules 2023 S1.2.1

16 / 20

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. Two team members walking on either side of the vehicle

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

c. Autonomes System must be deactivated

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

e. 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

See FSG Rules 2023 A.6.7

17 / 20

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

a. 45 secs

b. 100 secs

c. 120 secs

d. 60 secs

See FSG Rules 2023 IN9.2.7

18 / 20

For the rain test: (Multiple Choice)

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

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 vehicle must have passed the accumulator inspection

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

f. All wheels must be removed

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

19 / 20

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

a. AIRs

b. BOTS

c. RES

d. Cockpit Shutdown Button

See FSG Rules 2023 EV 6.1

20 / 20

Your team completes their best autocross run in 84.0 secs but knocks down one cone. The fastest team overall completed their run in 75.7 secs but knocked down three cones. How many points did your team recieve for autocross? Round to one decimal place.

See FSG Rules 2023 D6.3.2 & D9.1.7

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 VHDL

c. Only Verilog

d. Both

2 / 10

Which statements about the travel of the driving pedal is correct

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

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

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

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

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

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

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

FSG Rules 2023: T11.8.1, T11.8.5

3 / 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

4 / 10

Which of the following requirements of the brake light assembly must be met to be rules compliant? (multiple choice)

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

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

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

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

e. The brake light measures least 10 cm2 with an even level of brightness

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

See FSG rules 2023: T6.3

5 / 10

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

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

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

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

d. The Nickel based batteries have the lowest nominal voltage

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

no solution currently

6 / 10

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

a. A device above the segments to prevent arc flashes

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

c. Spare TSAC

d. Every wire used inside of the TSAC

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

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

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

7 / 10

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

a. NiMH type cells are allowed

b. 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

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

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

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

g. 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

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

8 / 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)

9 / 10

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

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

b. The brake pedal and its mounting must be designed to withstand a force of 2kN without any failure of the brake system

c. Unarmored plastic brake lines are prohibited

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

10 / 10

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

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

b. Software parameters are set wrong

c. A sensor input is shorted to Ground

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

e. Sensors are out of range

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 30%

Quiz „General Engineering“

1 / 10

You would like to drink a cup of very hot coffee with milk early in the morning, but you
are in a hurry and have only 5 minutes until you have to leave for work. At which time
after brewing should you add the cold milk to the coffee and stir in order to decrease the
temperature of the mixture as much as possible:
a) 0 minutes (immediately),
b) 2 minutes, or
c) 4 minutes?
Suppose that the stirring can be done instantaneously and that you need the last one
minute for drinking.

brew temperature C = 80 ◦C, temperature of milk = M = 10 ◦C, room temperature
0 = 20 ◦C, volume of coffee VC = 300 ml, volume of milk VM = 100 ml, specific heat
capacity of coffee cC = 4180 J/(kgK), specific heat capacity of milk cM = 3500 J/(kgK).

Please enter only the letter of the corresponding answer

a. 0 mins

b. 4 mins

c. 2 mins

The driving „force“ for the cooling of the coffee is the temperature difference between the warm coffee and the environment (room temperature), which leads to an exponential drop in coffee temperature. The temperature difference is greatest immediately after brewing. The later we stir in the milk, the lower the coffee temperature has already dropped. On the other hand, lowering the temperature by the milk becomes smaller the longer we wait.
So we let the coffee cool down on its own for as long as possible in order to bring about the temperature reduction by the cold milk at the end. The greatest possible cooling is therefore achieved when the milk is added after 4 minutes.

2 / 10

A cantilever is subjected to forces

. Determine the bar force

F_{S 8}

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

a. 7.27F

b. -6F

c. 2.85F

3 / 10

In a gas pipe, the gas pressure pG is measured using a U-tube manometer connected at the bottom. Above the meniscus of the measuring liquid (mercury with density ρQ) on the gas side, there is a column of water with height h₂ and density ρW.
Question:
What negative pressure △pU (vacuum) exists in the pipe compared to the external pressure p₀?

Result in Pa, two decimal numbers seperated by a point (exp. 15.3). Do not put the Unit in the field below.

4 / 10

Calculate the force Fc working at point C.

Rax = 4kN, Ray = 10 kN

Rbx =5 kN, Rby = 8 kN

Moment equation around point D:

0 = -Fc x 1m + Rby x 2.5 m – 60 kN x 4 m + Ray x 5.5 m

Fc = -165 000 N

Fc = – 165 kN

5 / 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. 254.53°F

c. 177.06°F

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 = 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

7 / 10

An object is fired vertically upwards from the ground at time t = 0 s in still air at a speed of 9.6 m/s. On the way up, what is the height of the object above the ground when it has a speed of 1.9 m/s. At what time does it reach this height on the way down? Give both answers separated by a comma to one decimal place.

Possible solution:

use this formula to calculate the required height: „v^2 = u^2 + 2as“ -> 4.513m
use same formula again to calculate the maximum height the object reaches -> 4.697m
then use this formula to calculate the time the object takes to reach maximum: „v=u + at“ -> 0.785s
calculate the time taken for the object to fall from the maximum height to 4.5m (first answer): „s =1/2at^2“-> 0.194s
add together the two calculated times -> 1.0s

8 / 10

Calculate the gravitational potential energy of a 4 kg object at 15 m above Earth’s surface with gravitational field strength of 9.81 N/kg. Give answer to three significant figures in J.

E = m * g * h

9 / 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.

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. p1>p2>p3

b. p1=p2=p3

c. p2>p1>p3

d. p2=p1>p3

e. p2>p3>p1

Dein Ergebnis ist

Die durchschnittliche Punktzahl beträgt 0%