Quiz Preparation

1. What is the penatly for driving off course during endurance?

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

3. What is the minimum number of points a team recieves for finishing an acceleration run?

4. 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?

5. What does a black flag mean?

6. How far is the car tipped during the tilt test?

7.

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

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

9.

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

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

1. Ten pages of text are allowed in the Engineering Design Report

2. 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.

3.

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

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

5. How many events may a driver drive during a competition?

6. Which of the following statements are correct? (Multiple Choice)

7. How many points are assigned for the Overall Vehicle Concept in the Engineering Design Event? (Multiple choice)

8.

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

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

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

11. What is the minimum allowed ground clearance, excluding driver?

12. Your team recieves 4.7 points for their autocross run. The fastest time overall was 69.1 secs. How long was your team’s fastest run? Round to one decimal place.

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

14. 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 59 points. What is your Business Plan Presentation Score? Round to one decimal place & don’t forget to use a point instead of comma

15. 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

16. What is the maximum duration of the Business Plan Presentation?

17. How far is the car tipped during the tilt test?

18. Your team completes their best manual skidpad run in 4.3 secs but knocks down 5 cones. The fastest team overall completed their run in 4.9 secs. How many points did your team recieve for skidpad? Round to one decimal place.

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

20.

The Electrical System Officer must: (Multiple Choice)

1. A horizontal pipe increases from cross-section 1 with A1 = 2.55 cm2 to cross-section 2 with A2 = 7.1 cm2. In cross-section 1 there is a pressure of p1 = 1.2 bar and a flow rate of v1 = 5 m/s. The density of water is 997 kg/m3.
Calculate the pressure in bar in cross-section 2 for the flowing water. Round to two decimals.

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

3. 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.

4. Which of the following statements regarding the rules are correct (2024)?
Mark all correct answers.

5. The truss structure shown in the figure is loaded with the forces F1, F2 and F3. The truss structure is supported in points A and B, as shown. Each segment of the truss structure is assumed to have no mass and infinite stiffness.
a = 2 m, F1 = 6 kN, F2 = 13 kN, F3 = 13 kN
Calculate the force in A and B in y-direction in kN. Enter the higher value. Round to one decimal.
(answer can be positiv or negativ but only negativ answers will be accepted)

6. Your vehicle has its right-hand base coordinate frame defined with the x-axis pointing forward into the driving direction and the z-axis upwards.
A camera is positioned on the vehicle as follows, in the vehicle coordinate frame:
x = 500 mm, y = 160 mm, z = 1140 mm
and the Euler angles ZY′X′′
roll = 100°, pitch = 0°, yaw = 90°
Assume the camera has no distortion, a resolution of 1280 px × 1080 px, and the principal point (cx and cy) and the focal lengths (fx and fy) are given by:
cx = 636 px, cy = 548 px, fx = 241 px, fy = 238 px
The point (u, v)0 is defined to be (u, v)0 = (-cx, -cy) as commonly used.
Within the camera image plane, z-axis in viewing direction, an object center is detected at pixel:
u = 795 px, v = 467 px
Another sensor determines the euclidian distance of the object to the camera frame as:
d = 2.7 m
Calculate the 3D position of the object in the vehicle coordinate frame in meter. Round to three decimals. Give the solution in the following format: x, y, z, e.g. 1.234, 5.678, 9.012

7. Mark all true statements according to the FS Rules

8. 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.

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

10. You built a cannon to impress your friends with a basketball trickshot. It has a railgun-style accelerator with a length / of 1 m. Your cannon is tilted upwards by an angle a of 77.25° and is placed as depicted with the lower part in the origin of the coordinate system. The cannonball has a mass m of 0.567 kg. Assume that the capacitors have a total capacity C of 33 mF, that the standard acceleration due to gravity 9, is 980.665 cm/s^2 and that there is no friction and no energy loss.
What voltage do you need to charge the capacitors supplying the railgun to, in order to hit the basket at (4.191 m, 3.05 m). Round to the nearest one.

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

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

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

4. Mark all true statements according to the FS Rules

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

2. 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

3. 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.

4. 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.

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

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

7. Which statements about the travel of the driving pedal is correct

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. 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

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

1. The kinetic energy of a 8 lbs 4 oz box as it was dropped reaching ground is 10125J. Determine the speed as it lands. Give answer to one decimal place in m/s.

2. 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

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

4. A refrigeration unit cools water of mass 3 kg by 33 °C. Find the thermal energy removed from the water. The specific heat capacity of water is 4186 J/kg celsius. Give answer to three significant figures in kJ.

5. A vehicle with the mass 190kg, wheelbase 1,56m and tyre static radius 222mm is weighed. Scales measure 83kg (front) and 107kg (rear) when the car measured on the perfectly flat ground and the same values when the front axle is elevated by 0,85m. What is the car’s COG height? Give answer to the nearest whole number in mm

6. Calculate the force Fc working at point C.

Rax = 4kN, Ray = 10 kN

Rbx =5 kN, Rby = 8 kN

7. 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.

8. 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.

9. 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.

10. Your team is the first car at the design event during FSN2022 and it’s quite cold for this time of the year, 12 degrees C. To impress the judges, you decide to make some tea for them. What is the minimum required time to prepare the tea, knowing that you have to boil 4 tea cups of 370ml each and you have an electrical heater with a power of 500W. Give your answer to the nearest whole number in secs.