Formula Student Quiz
Inside the car, we have a really important fluid in a Little square box with no top. If the box contains 1L of fluid and it’s height is 2cm, which of these is the minimum high of the walls of the box to be rules compliant according to IN7?
9,5 cm
11,3 cm
8,5 cm
10,2 cm
7,1 cm
A coin is over a sphere at 1.5m on it’s vertical and from the center of the sphere. If the sphere is charged whith 4uC and the coin is charged with 2uC, which is the mass of the coin? g=9,8 m/s^2
1,55 g
4,32 g
3,26 g
2,54 g
2,61 g
What is the horizontal displacement of point P (to the right)? Assume that the bar stays in the linear region. The section consists of a circular tube with a radial moment of inertia I.
P*L^3/(3EI)
2*P*L^3/(3EI)
3*P*L^3/(3EI)
4*P*L^3/(3EI)
5*P*L^3/(3EI)
During an autocross run of an electric vehicle, the BMS opens the shutdown circuit due to a high discharge current. The driver, who quickly notices the fail, presses a dedicated button and proceeds to reactivate the tractive system once again. Is the mentioned car rules compliant:
Yes, It is.
No, power cycling the TSMS is needed.
No, to reactivate the tractive system a person who is not the driver has to reset it manually.
No, power cycling the GLVMS is the only way of reactivating the TS.
Your team is getting the vehicle ready for the cost and manufacturing event. Which of the following is true?
The vehicles do not have to be in finished conditions, but you will receive less points for that.
Your vehicle must pass technical inspection in order to be judged.
The judges may remove covers to analyse components of your car.
Your vehicle may be presented without having passed technical inspection, but it will affect your final score.
Due to an error in the braking system, only the front brakes do brake. What is the maximum deceleration your car can achieve without losing contact between the rear wheels and ground. Mass of the car and pilot 280kg. Height of the COG 300mm. Wheel base 1530mm. Weight distribution with pilot 54% rear. Assume infinite friction coefficient. Neglect aerodynamic effects.
12 m/s^2
15 m/s^2
18 m/s^2
21 m/s^2
24 m/s^2
27 m/s^2
In order to determine the parameters of your electric motor you perform a test with an stopped rotor. You also measure some data shown in the graph below. The phase shift between the two waves is (in absolute value) 45 degrees. Which are the values for the resistance and inductance of each winding (assume that the motor windings behave like a balanced and symmetric load)?
R=0,1732; L=450,16uH;
R=0,1232; L=391,5uH;
R=0,1414; L=450,16uH;
R=0,1893; L=601,6uH;
In an aerodynamic profile located in an air current, the transition of the boundary layer can be delayed by:
Increasing the roughness of the surface.
Increasing the area where local acceleration is positive.
Increasing the turbulence of the current.
Increasing the pressure of the current.
We want to do an essay in an innovative cooling system, using the venturi of the figure where air circulates in the atmosphere by section 2, to raise paint from a container r. Not considering the loss of load, determine from what flow of air, in liters / second, will beginvto arrive to the venturi. D1 = D2 = 0.1m, Dgola = 0.02m, h = 20 cm, air (density 1.2 kg / m3, viscosity 10-5 m2 / s), paint (density 1300 kg / m3, viscosity 10-2 m2 / s).
20,5 l/s
23,3 l/s
19,5 l/s
18 l/s
21,4 l/s
26,1 l/s
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