Quiz Preparation

1. 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)

2. How many cones do you need to build the skidpad track

3. What does the yellow and red striped flag mean during Endurance and Autocross Event?

4. What is BOM short for?

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

6.

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

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

8.

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

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

10. What is DNF short for?

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

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

3. 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 ?

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

5.

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

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

7.

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

8. Each team must have two 0.8kg fire extinguishers.

9.

The Electrical System Officer must: (Multiple Choice)

10. 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?

11. Which of the following statements are wrong? (Multipel Choice)

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

13. The length of the acceleration track is 75m. Hypothetically the acceleration of the cars is constant, and linear, without slip. The vehicle starts from the starting line of the Acceleration track and then covers 75m. At the finish line, the speed of the racing car is 108 km/h.

How much time (in secs) is needed for the car complete the Acceleration Event and what was the acceleration of the car ( in m/s^2)? Give the answers as whole numbers sparated by a comma (?, ?).

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

15.

The Electrical System Officer must: (Multiple Choice)

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

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

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

19. 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

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.

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

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

3. 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.

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

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

6. 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

7. For this Wheatstone Bridge based NTC temperature measurement circuit, which is the lowest voltage measurement (VAB) that is possible to obtain at 60ºC? (NTC B: 3435 +/-1%) Give answer in Volts rounded to two decimal points.

8. 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.

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

1. 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.

2. A hall with a floor area of 500 m² is to be equipped with underfloor heating, which will be operated at an average temperature of 33°C.

What percentage of the floor area must be used as heating surface in order to ensure an indoor temperature of 18°C when the outside temperature is -15°C?

Result in m^2 as an integer

3. Calculate the force Fc working at point C. Give answer in kN rounded to one decimal place.

Forces at point A: Rax = 3kN, Ray = 9kN, Ma = 10kN/m

4. Calculate the Normal force on the rear left tyre during the first skidpad lap. You can assume, that your vehicle is in a steady-state condition and that there is no longitudinal acceleration. Further it can be assumed, that all 4 wheels have a lateral grip coefficient of 1.4. You can use the centerline radius stated in the rules. Following information regarding the vehicle are given. Give answer to nearest whole number in Newtons.

m = 220 kg

Cl = 3.8

A = 1 m^2

Rho = 1.1 kg/m^3

Wheelbase: L = 1.53

Trackwidth:t = 1.2 m

Height of CG: h = 0.2 m

Weight distribution/COP: 50%

5. 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.

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

7. 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.

8. 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.

9. 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.

10.