Quiz Preparation

1. What is IMD short for ?

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

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

4. How many percentage of points are the Finances in the Business Plan Presentation Event?

5. What penalty is given for a doo in Skidpad?

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

7. What does a black flag mean?

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

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

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

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

2. 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.

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

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

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

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

7. The following processes have to be measured by the AMS. (Multiple choice)

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. 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.

10. Which of the following statements about LV battery packs with lithium based chemistry other than LiFePo4 is not true?

1. The magnitude of the manifold reaction force FK is to be determined. In Newton, integer, no unit in the answer

2. 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:

3. Using an indicator, the cylinder pressure can be plotted as a curve over the piston stroke. The curve recorded for the compression stroke of an internal combustion engine can be approximated by the relationship p⋅V^n=const..
What is the amount of work done by the volume change if the following values are given?

given: V_1=10^-3 m^3; p_1=0.1 MPa; p_2=3 MPa; n=1.3

Round to one decimal number seperated by a point. Input in Joul without writing the unit in the field below (example: 152.9).

4. A spring in a car’s suspension has elastic potential energy store 226 J. If the spring constant is 8.1N/mm, find the extension. Give answer in meters to three significant figures.

5. A lorry contains an engine with a power of 2.78 J/s. The lorry drives for 36 mins. Calculate the energy transferred in kJ rounded to three decimal places.

6. 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.

7. 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.

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

9. 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

10. The previous season you could recuperate only 25% of your initially stored energy, but this season a big improvement in your drivetrain allows you to recuperate 63% of the initially stored energy.  Knowing that you had 9.6 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 to one decimal place.