Quiz Preparation

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

2. What is the minimum height of the university name and the car number added together?

3. What does a black flag mean?

4. What does the yellow flag mean during the driving disciplines?

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

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

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

8.

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.

9. How many points are assigned for the pitch video in the Business Plan Presentation Event?

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

1. What are requirements of using a standard Impact Attenuator?

2.

Assuming the skid pad event has only two participants, both EV without driverless. Team A and Team B: calculate the score rounded to two decimals for the team scoring the lower amount of points using the following data.

3. What is the minimum height of the university name and the car number added together?

4. 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.

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

6.

The Electrical System Officer must: (Multiple Choice)

7. 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.

8.

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.

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

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

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

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

13. 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

14. To build your race car you need a part what can be bought on the public market for 400 EUR per piece. Your plan is to sell 950 race cars the next five years. If you will manufacture the part by yourself, you need an investment of 400.000 EUR for the installation. Furthermore, you need to pay 20.000 EUR per year for the machine operator. The material costs are 70 EUR per piece. The machine cannot be sold after the usage. What is the cost of one piece of the own manufactured parts? Give answer as one whole number

15.

The Electrical System Officer must: (Multiple Choice)

16. What is the penatly for driving off course during acceleration?

17. What is the diameter of the outside skidpad circle?

18.

The following items have to be on or attached to the push bar, if you are an EV team. (multiple choice)

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

20. What is the volume of the smallest allowed head restraint? Give answer to two decimal places in m^3

1. Coco, the three-legged cat with a mass of 3.5 kg, is standing still on a horizontal frictionless surface. While playing with a ball of yarn, having a mass of 0.05 kg, Coco kicks it backwards with one of her three legs so hard that the ball of yarn reaches a speed of 2.3 m/s.
The resulting speed of Coco is:

2. Given is a parallel-plate capacitor with area A, separated by a uniform gap of thickness d1 filled with a dielectric with permittivity ε. At time t1, the voltage of the capacitor is V1. The capacitor is not connected to any electrical network.
How much energy is needed to change the plate spacing to d2 = 4 × d1?

3. Mark all true statements according to the FS Rules

4. Fred, the racing alpaca, challenges Coco, the 3-leged cat, to an acceleration event according to D 5.1.1. Being very confident, Fred gives Coco a head start h of 14 m infront of the start line. Both start the same time t=0 s having an initial speed V0 of 0m/s as shown in the figure. Coco accelerates with 6m/s^2. Assume that both are not limited by speed and have a constant acceleraton over the full acceleration event.

Calculate the minimum acceleration Fred needs to achieve to reach the finish line at the same time as Coco. Round to one decimal.

5. For the shown drive train, the input rotational speed is 3600 min-1, and the number of teeth of the sprocket is z1 = 20.
ease note: n2 = n3, n4 = n5, n6 = n7.
The number of teeth of the sprockets are:
z1 = 20, z2 = 45, z3 = 24, z4 = 55, z5 = 30, z6 = 43, z7 = 15, z8 = 53
Calculate the rotational speed in min^-1 for the final sprocket z8 where the driveshafts are mounted. Round to one decimal.

6. In which cases will team members be denied their on-site member pass?
Mark all correct answers!

7. Fred, the racing alpaca, has made a New Year’s resolution to lose weight to improve his time in Acceleration. Assume that the traction force remains the same, is constant over the entire Acceleration, and that drag or other resistances can be neglected.
How much weight must he lose at least to improve his time by 13 %? Answer in % and round to the nearest one.

8. You want to use a photo from media.formulastudent.de.
Mark the correct answer.

9. In the following there are multiple statements abount the rules. Which statements are correct?

10. The TS of an EV can be simplified to be
an ideal TS energy storage and
an unshielded TS cable running through free air.

The ideal TS energy storage consists of the following parts:
an ideal voltage source V0 supplying 600 V DC at any load
an ideal resistor Ri of 28.5 mΩ which combines all resistances in the high current path of the TS energy storage, such as the cell, contact, busbar, wiring, fuse, and outlet connector resistances
an ideal circuit-breaker as the main fuse having an appropriate DC voltage rating and a characteristic such that the instantaneous tripping current is 10 times the rated current

The TS cable has the following properties:
the cross-section A is 2×6 mm2
the length l is 10 m
the specific conductivity κ is 56 m/(Ω*mm2)
a 30 % increase in the wire’s resistance covers the thermal behavior and all other effects during a short-circuit event
Select the rated current In and breaking capability Icn of the TS energy storage circuit-breaker, such that
a short circuit event at any point of the TS wire triggers instantaneous tripping
a short circuit event at any point of the TS wire can be interrupted
the maximum possible rated current is chosen, although the value might be well above the typical continuous current rating of the cable
available values for the rated current In have a step of 10 A (e.g. 10 A, 20 A, 30 A)
the minimum possible breaking capability is chosen
available values of the breaking capability Icn have a step of 10 kA (e.g. 40 kA, 50 kA, 60 kA)
Give the rated current In in A and the breaking capability Icn in kA in the following format: In, Icn e.g. 123, 456

1. According to the FS Rules and the competition handbook: Which statements are true?

2. Mark all true statements according to the FS Rules

3. In which cases will team members be denied their on-site member pass?
Mark all correct answers!

4. In the following there are multiple statements abount the rules. Which statements are correct?

1. 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.

2. The previous season you could recuperate only 27% of your initially stored energy, but this season a big improvement in your drivetrain allows you to recuperate 69% of the initially stored energy.  Knowing that you had 6.3 kWh of energy in your accumulator during the last season, how much energy must your new accumulator have, if you assume, that it’s the same length and speed? Give answer in kWh

3. 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

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

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

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

7. How much current flows when 99 C passes down a wire in 11 s? Give answer in amps as a whole number.

8. 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

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

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

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

2. 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.

3. 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

4. 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.

5. Before the endurance you pump nitorgen in your tires at a temperature of 20°C and 0.7 bar relative pressure. Knowing, that during the endurance the maximal tyre temperature will be around 60°C, what will be the maximal relative pressure of the tyre? Give answer in bar to two decimal places.

6. A lorry contains an engine with a power of 0.255 W. The lorry drives for 51 s. Calculate the energy transferred in Joules and round to one decimal places.

7. An object is fired vertically upwards from the ground at time t = 0 s in still air at a speed of 8.0 m/s. On the way up, what is the height of the object above the ground when it has a speed of 2.0 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.

8. 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.

9. 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)

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: