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Quiz Preparation

20

Quiz „Basics“

1 / 10

1. What is DNF short for?

2 / 10

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

3 / 10

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

4 / 10

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

5 / 10

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

6 / 10

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

7 / 10

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

8 / 10

8. Which of the following certifications for helmets is not allowed?

9 / 10

9.

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

10 / 10

10. Are teams allowed to decide whether they drive on rain tires or slicks by themselves?

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2

Quiz „Electrical“

1 / 10

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

2 / 10

2. 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

3 / 10

3. 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

4 / 10

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

5 / 10

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

6 / 10

6. 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.

7 / 10

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

8 / 10

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 / 10

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

10 / 10

10. You want to drive with a Lithium Polymer Cell with 3.2 Ah and weighing 70 g. Which of the following configurations would be allowed by the rules? Hint: Unorm = 3.7 V, Umax = 4.2 V

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Quiz „General Engineering“

1 / 10

1. 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.

  • p2 = p1 * (V1/V2)^gamma
  • gamma= 1.4

2 / 10

2. An air as an ideal gas expands adiabatic from a volume of V1 = 1,00l with its pressure of p1 = 10^5 Pa to 1/10 of its original pressure. What volume V2 (in litres) does the gas reach after it’s expansion? Round to two decimal places

3 / 10

3. Answer in MJ, round to one decimal number (example 45.7), no unit in the answer

4 / 10

4. Calculate the maximum possible cornering speed (in kph) for the following FSAE car when going through a 20 m radius corner.

m = 260kg; cl *A * Rho = -6 kg/m; Tyre coefficient of friction = 1.5; g = 9.81 m/s^2.

The vehicle can be treated as a point mass, driving resistances neglected. Round to 1 decimal

5 / 10

5. 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.

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6.

An air stream dot{M}_L = 5.5  kg/s, cp_L=1 kJ/(kgK) is to be heated in a plate heat exchanger from θ_L′=20∘C ′ to θ_L′′=150∘C. For this purpose, a flue gas stream dot{M}_R = 7.22, cp_R=1.1 kJ/(kgK) with a temperature of θ_R′=300∘C is available. The overall heat transfer coefficient is k=15 W/(m^2*K).
What is the required heating surface AAA if the fluid streams are arranged in counterflow?

7 / 10

7. 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.

8 / 10

8. 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

9 / 10

9. 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

10 / 10

10. Unit: kg/(m^3), to decimal number seperated by: . (exp. 15.3), write only the number in the field below

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