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Quiz Preparation

36

Quiz „Basics“

1 / 10

What needs to be considered when entering the Dynamic Area?

2 / 10

What is BOM short for?

3 / 10

What is the minimum allowed ground clearance, excluding driver?

4 / 10

Situation during the Endurance: A driver spins with the car and is driving in reverse to get back on track. What is wrong in this situation?

5 / 10

What is the diameter of the outside skidpad circle?

6 / 10

What happens if a driver completes more than two runs in a discipline?

7 / 10

Each team must have two 0.8kg fire extinguishers.

8 / 10

During the BPP, who is allowed to answer questions from the judges?

9 / 10

What is the penatly for driving off course during endurance?

10 / 10

What is AMS short for?

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49

Quiz „Intermediate“

1 / 20

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.

2 / 20

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

3 / 20

What is the length of the acceleration track?

4 / 20

What is the penatly for hitting over a cone during skidpad?

5 / 20

What is the minimum tread depth of the rain tires?

6 / 20

What is the maximum number of drivers allowed to compete at an event?

  • installation cost: 400.000 EUR
  • machine cost: 20.000 EUR x 5 years = 100.000 EUR
  • material cost: 50 EUR x 1200 cars = 60.000 EUR
  • Total cost: 560.000 EUR
  • Cost per car: 560.000 EUR /1200 = 560 EUR

7 / 20

To build your race car you need a part what can be bought on the public market for 450 EUR per piece. Your plan is to sell 1200 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 50 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

8 / 20

How far is the car tipped during the tilt test?

9 / 20

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)

10 / 20

The Electrical System Officer must: (Multiple Choice)

11 / 20

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

12 / 20

What is the maximum duration of the Business Plan Presentation?

13 / 20

Your team completes their best manual skidpad run in 4.0 secs but knocks down 11 cones. The fastest team overall completed their run in 4.1 secs. How many points did your team recieve for skidpad? Round to one decimal place.

14 / 20

What is the diameter of the inside skidpad circle?

15 / 20

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?

16 / 20

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

17 / 20

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

18 / 20

Your team completes their best manual acceleration run in 4.2 secs. The fastest team overall completed their run in 4.1 secs. How many points did your team recieve for acceleration? Round to one decimal place.

19 / 20

The Electrical System Officer must: (Multiple Choice)

20 / 20

Each team must have two 0.8kg fire extinguishers.

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4

Quiz „Electrical“

1 / 10

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

2 / 10

Which statements about the travel of the driving pedal is correct

3 / 10

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

4 / 10

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

5 / 10

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

6 / 10

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.

7 / 10

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

8 / 10

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

9 / 10

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 / 10

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

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Quiz „General Engineering“

1 / 10

Calculate the cornering speed during Skidpad (you can use the centerline radius in the rules) using following information:

μ_y = 1.4,  m = 240 kg,  c_L = 3.2,  A = 1 m^2,  ρ = 1.1  kg/m^3

It is assumed, that there is no weight transfer and all 4 tires are at the optimal grip level. Answer in m/s rounded to one decimal place.

2 / 10

What temperature would occur at the stagnation point of an aircraft flying at a speed of , assuming that the air behaves as an ideal gas under these conditions? The temperature of the undisturbed air is theta_1 = -30°C.

3 / 10

Frage

Strömungslehre Aufgabensammlung

4 / 10

In a cylinder, air is compressed isothermally at ambient temperature (θ_U=20∘C) to .
Calculate the change in the specific entropy of the air in the cylinder.
Round to two decimal numbers sperated by a point. Input in J/(kgK). (Example -365.26)

5 / 10

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.

6 / 10

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.

7 / 10

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%

8 / 10

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

9 / 10

Calculate delta_h1 and delta_h2 in mm (integers), seprate the value with a comma, no space in between, delta_h1 is the first value (exp.: 126,4)

10 / 10

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.

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