Quiz Preparation

For the Cost and Manufacturing discipline, which statement is correct regarding „bought parts“?

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

What is the minimum tread depth of the rain tires?

Which of the following must be included in the Bill of Material (BOM)?

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

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

What is the diameter of the outside skidpad circle?

What does the yellow flag mean during the driving disciplines?

What needs to be considered when entering the Dynamic Area?

What is not a ’system‘ in the Cost Reports Bill of Material?

Your team recieves 14.7 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.

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

The Electrical System Officer must: (Multiple Choice)

What is the penatly for driving off course during acceleration?

What is the diameter of the outside skidpad circle?

Your team completes their best autocross run in 84.0 secs but knocks down five cones. The fastest team overall completed their run in 1 min 13 secs. How many points did your team recieve for autocross? Round to one decimal place.

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

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

Which statements are correct? (multiple choice)

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

What is the minimum diameter of a shutdown button placed on the side of the vehicle behind the driver’s compartment?

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

A team missed the intial deadline for a document and submitted this 24 hours after the deadline. After that the team’s document got accepted. The team will recieve a 10 point penalty.

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)

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.

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 (?, ?).

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

What is the minimum height of the university name on both sides of the car?

What does a black flag mean?

What is the minimum tread depth of the rain tires?

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

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

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

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.

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.

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

Which of the following statements is false regarding the difference between Lead-based batteries, Nickel-based batteries and Lithium-based batteries?

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

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

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)

An object is fired vertically upwards from the ground at time t = 0 s in still air at a speed of 8.0 m/s. On the way up, what is the height of the object above the ground when it has a speed of 2.0 m/s. At what time does it reach this height on the way down? Give both answers separated by a comma to one decimal place.

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.

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.

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

A helicopter of mass 4200 kg is carrying a crate using a light extensible rope. The crate has a total mass of 800 kg, including its contents. The helicopter and crate are accelerating upwards at 2.0 ms^-2. What is the tension in the rope? Use gravititational field strength g is 9,81 N/kg. Air resistance can be ignored. Give answer to nearest whole number in Newtons

Calculate the pull force on the plate in Newton. Round to 2 numbers seperated by a point (exanple: 9.13)

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).

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

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

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)