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Quiz Preparation

30

Quiz „Basics“

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

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2.

What is the minimum number of drivers allowed for each team at an event?

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

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4. What is the penatly for driving off course during endurance?

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5. How many sets of dry tyres are allowed to be used in the manual dynamic disciplines during one event?

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

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

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8. What is the length of the acceleration track?

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9. What does a black flag mean?

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10. What is the minimum height of the university name and the car number added together?

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Quiz „Intermediate“

Steps:

  • calculate average time between left circle and right circle for each run
  • add any penalties to these times
  • decide on the best time of Team A and Team B
  • slowest time between these two best times is T_team
  • fastest time between these two best times gets multipled by 1.25 and is T_max
  • use formula from FSG Rules 2023 D4.4.3

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1.

Assuming the skid pad event has only two participants, both EV without driverless. Team A and Team B: calculate the score rounded to two decimals for the team scoring the lower amount of points using the following data. (FS 2025 Rules)

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2. Teams who remove their vehicle from the event site after
the event has begun will be disqualified from the event.

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3. 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.

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4. 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 ?

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

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6. An official has the right to remove the scrutineering sticker from the car, if the car is no longer rule compliant.

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7. What is the penatly for driving off course during endurance?

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8. 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 but knocked down three cones. How many points did your team recieve for autocross? Round to one decimal place.

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9. What does a black flag mean?

See FSG Rules 2023 A1.2.7

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10. As a DV-EV Team not competing in DC, what is your maximum total score of Busniess Plan Presentation, Cost and Manufacturing, Skid Pad, Acceleration and Efficiency together?

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11.

The Electrical System Officer must: (Multiple Choice)

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12. 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

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

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14.

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

See FSG Rules 2023 A5.3.2

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15. A team missed the intial deadline for a document and submitted this 49 hours after the deadline. After that the team’s document got accepted. The team will recieve a 10 point penalty.

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16. Your team completes their best manual skidpad run in 5.9 secs. The fastest team overall completed their run in 5.1 secs. How many points did your team recieve for skidpad? Round to one decimal place.

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17. What is the minium number of points your team can get when participating in th BPP finals?

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

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

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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.

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Quiz „Electrical“

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1. 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

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2. 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.

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3. 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

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4. 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

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

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

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7. 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)

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

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9. 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.

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

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Quiz „General Engineering“

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1. 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.

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2.

How high (in m) can a column of liquid be lifted by a reciprocating piston, neglecting leakage and losses, if the air pressure is 101300 Pa and the pressure p₁ approaches zero?

Example Input 14.3 (use a point, no unit)

Strömungslehre Aufgabensammulung

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3. 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

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4.

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?

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5. 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%

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6. 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).

 

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

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8. 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.

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9.

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.

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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.

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