FSC Registration Quiz #8 (Alumni-fragen)

1. A car with 60kW of power is driving up a slope with 10% incline. It has a cross sectional area of 2 sqm. It's coefficient of drag is 0.38. If the car weighs 195 kilograms and car and track have a coefficient of friction of 0.2, how fast can it go? (25° C)

154 km/h

143 km/h

165 km/h

132 km/h

140 km/h

125 km/h

The given question requires calculating the maximum speed at which the car can go up the slope. To calculate this, we can use the power equation: Power = Force x Velocity. The force can be calculated by adding the force due to gravity (weight of the car) and the force due to friction. The force due to friction can be calculated by multiplying the coefficient of friction with the weight of the car. The velocity can be calculated by dividing the power by the force. By substituting the given values into the equation and solving for velocity, we find that the maximum speed the car can go is 154 km/h.

Explanation

The given question requires calculating the maximum speed at which the car can go up the slope. To calculate this, we can use the power equation: Power = Force x Velocity. The force can be calculated by adding the force due to gravity (weight of the car) and the force due to friction. The force due to friction can be calculated by multiplying the coefficient of friction with the weight of the car. The velocity can be calculated by dividing the power by the force. By substituting the given values into the equation and solving for velocity, we find that the maximum speed the car can go is 154 km/h.

2. Which kind of underclothing do the drivers have to wear during the dynamic events?

Long pants and long sleeve t-shirt certified to SFI 3.3 or FIA 8856-2000

Fireresistant short pants and t-shirt

They do not have to. But it is highly recommended.

Any kind of long, cotton-made underwear.

Bikini

Drivers are required to wear long pants and a long sleeve t-shirt that are certified to either SFI 3.3 or FIA 8856-2000 standards during the dynamic events. This is because these certifications ensure that the clothing is fire-resistant, which is crucial for the safety of the drivers in case of any fire-related incidents. Wearing such clothing provides an additional layer of protection and reduces the risk of severe burns or injuries. Therefore, it is necessary for drivers to wear these specific types of underclothing during the dynamic events.

Explanation

Drivers are required to wear long pants and a long sleeve t-shirt that are certified to either SFI 3.3 or FIA 8856-2000 standards during the dynamic events. This is because these certifications ensure that the clothing is fire-resistant, which is crucial for the safety of the drivers in case of any fire-related incidents. Wearing such clothing provides an additional layer of protection and reduces the risk of severe burns or injuries. Therefore, it is necessary for drivers to wear these specific types of underclothing during the dynamic events.

3. During endurance an addional stop

Is not prohibited to ensure operating ability of the vehicle, if the team members want to check the car.

An additional stop needs to be announced to the tech scrutineers.

Is prohibted to change tyres if track conditions are declared wet (former dry).

Must be carried out within 15 minutes.

If a driver makes an additional stop during endurance, it will result in a Did Not Finish (DNF) if the driver comes in voluntarily and not because of the meatball-flag. The meatball-flag, which is an orange dot on a black background, is used to indicate a mechanical issue or other problem with the car that requires the driver to come into the pit. However, if the driver chooses to make an additional stop on their own, it will result in a DNF.

Explanation

If a driver makes an additional stop during endurance, it will result in a Did Not Finish (DNF) if the driver comes in voluntarily and not because of the meatball-flag. The meatball-flag, which is an orange dot on a black background, is used to indicate a mechanical issue or other problem with the car that requires the driver to come into the pit. However, if the driver chooses to make an additional stop on their own, it will result in a DNF.

4. Critical fasteners need to

Be visible to technical inspectors and team members.

Be secured with an anti-vibration feature.

Must have at least 3 full threads visible.

Need to be marked with paint, to detect loosening early.

Need to be checked every evening.

Will be inspected during driver change by the first driver.

The correct answer is "be visible to technical inspectors and team members." This is because critical fasteners need to be easily seen by inspectors and team members to ensure that they are properly secured and functioning. Visibility allows for regular inspections and maintenance to prevent any potential issues or failures.

Explanation

The correct answer is "be visible to technical inspectors and team members." This is because critical fasteners need to be easily seen by inspectors and team members to ensure that they are properly secured and functioning. Visibility allows for regular inspections and maintenance to prevent any potential issues or failures.

5. A car is driving a Skidpad in the middle of the track. The car weights 250kg (incl. Driver) and produces addition 2kN of downforce at a speed of 100kph. The friction-coefficient is 1,4. What minimum time is achievable?

4,77s

4,44s

4,55s

4,66s

4,88s

4,99s

5,11s

5,22s

The minimum time achievable can be calculated using the formula: time = 2π√(mass/friction × downforce). In this case, the mass (including the driver) is 250kg, the friction coefficient is 1.4, and the downforce is 2kN. Plugging these values into the formula gives a time of approximately 4.77 seconds.

Explanation

The minimum time achievable can be calculated using the formula: time = 2π√(mass/friction × downforce). In this case, the mass (including the driver) is 250kg, the friction coefficient is 1.4, and the downforce is 2kN. Plugging these values into the formula gives a time of approximately 4.77 seconds.

6. An engine with a maximum speed of 7500rpm is equipped with a starter/alternator combination. The used motor is an IPMSM with U_((eff,Str)/1000rpm)=1,633V an directly attached to the crankshaft. What is the maximum voltage which could be present within the LV system if the power electronic shuts down due to an error (no current is applied to the motor)? Note: Losses within the system don't have to be taken into account. The IGBT module is also considered to be loss-free.

30V

21.21V

20V

42.42V

36.74V

25V

not-available-via-ai

Explanation

not-available-via-ai

7. What is allowed on eventside?

Walking in front of "wing-cars".

Drinking responsible, this means not driving a fs car afterwards.

Grinding in the pits with eye protection only.

Grinding in the pits with full protection and a sufficient clamping of the part.

Excessive unloading of trucks over several hours.

Running

Walking in front of "wing-cars" is allowed on eventside.

Explanation

Walking in front of "wing-cars" is allowed on eventside.

8. At which maximum speed will the specified engine be tested during noise test. Non-industrial, single cylinder, displacement: 500cm^3, bore-stroke-ratio: 1/1 (NOT ROUNDED)

5315 RPM

5302 RPM

5319 RPM

5302 RPM

5299 RPM

5295 RPM

5331 RPM

5337 RPM

The specified engine will be tested at a maximum speed of 5315 RPM during the noise test.

Explanation

The specified engine will be tested at a maximum speed of 5315 RPM during the noise test.

9. How long can a straight with wide turns on both ends be at endurance?

61.0m

77.0m

60.0m

45.0m

90.0m

The correct answer is 61.0m. This means that a straight with wide turns on both ends can be a maximum length of 61.0m at endurance.

Explanation

The correct answer is 61.0m. This means that a straight with wide turns on both ends can be a maximum length of 61.0m at endurance.

10. Concerning a given vectorfield A, which statement is correct?

Div(rot(A)) = 0

Div(grad(A)) = 0

Rot(div(A)) = 0

Rot(grad(A)) = 0

Grad(rot(A)) = 0

Grad(div(A)) = 0

None

The statement "div(rot(A)) = 0" is correct because the divergence of the curl of a vector field is always zero. This is a consequence of the vector calculus identity known as the "curl of a curl" theorem, which states that the curl of the curl of a vector field is equal to the negative of the gradient of the divergence of that vector field. Since the divergence of a vector field is a scalar function, its gradient is always zero, resulting in the statement "div(rot(A)) = 0".

Explanation

The statement "div(rot(A)) = 0" is correct because the divergence of the curl of a vector field is always zero. This is a consequence of the vector calculus identity known as the "curl of a curl" theorem, which states that the curl of the curl of a vector field is equal to the negative of the gradient of the divergence of that vector field. Since the divergence of a vector field is a scalar function, its gradient is always zero, resulting in the statement "div(rot(A)) = 0".