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FSAE Quiz Challenge

Are you ready to test your knowledge of Formula SAE engineering and rules? This quiz covers various topics, from vehicle dynamics and design regulations to electrical systems and more!

Multiple choice questions
Real-world scenarios
Technical calculations

15 Questions4 MinutesCreated by DrivingEngineer473

1) At the "no help zone" line on he acceleration is a ditch that is 15mm deep and wide enough for your 13" outer diameter tire to completely reach the bottom. The surrounding surface is flat and level. Your wheelbase is as short as possible and the front wing is built to the maximum dimensions alllowed in the Rules. You are rolling slowly so you can assume your suspension to be stiff. What's the minimum ground clearance (in mm) that remains while driving across that ditch ? Please use the following format: 12.34

2) Your car loses a wheel while you are going 72km/h and the wheel continues rolling straight ahead for 40 m with a rolling resistance of 10N before it reaches the press area. How fast is the tire going at that point? (in m/s, rounded to full number) Wheel data: 16.2" outer diameter, mass=5kg, rotational inertia Iyy=0.093Kgm^2 Please use the following format: 12.34

4)A thin-walled brake line made out of steel with the modulus of elasticity 210000MPa, an inner diameter of 4.75mm, and a wall thickness of 1mm is under an internal gauge pressure of 120bar. What are the circumferencial stress (sigma) and the expansion (delta da) of the outer diameter?

A)sigma=285 MPa,delta da=0.00645mm

B)sigma=28.5 MPa,delta da=0.00064mm

C)sigma=285 MPa,delta da=0.00780mm

D)sigma=28.5 MPa,delta da=0.000078mm

5)Calculate the maximum possible cornering speed for the following FSAE car when going through a 20m radius corner(in kph) Overall mass: 260 kg Product of coefficient of lift, frontal area and air density (cl*A*ROH)=-6kg/m; Tire coefficient of friction=1.5 Gravity acc. g=9.81m/s^2 (Hint: The vehicle can be treated as a point mass, driving resistances neglected); Round to 1 decimal Please use the following format: 12.34

6) The front track width of your car is 1240mm. In which range must the rear track width be in order to compliant with the rules ?

A)930mm-1550 mm

B)992mm-1653 mm

C)992mm-1550mm

D)930mm-1653 mm

7) Your car is equipped with a front and rear wing. During the testing phase of your team, you have encountered a magical animal that can produce aerodynamic downforce without raising the car's drag. In which position of the car would you place the aerocat, in order to increase the maximum corner potential of the car in a left turn ?

A)Front wing right side

B)Front wing left side

C)Frront wing middle

8) Your team is offered to do a wind tunnel test in order to validate your CFD-simulation and improve the aerodynamic development process. The resulting wind travel test model is a 60% scale model, featuring all the details of the actual car. At which airspeed (in kph) should you run the wind tunnel in order to directly compare the results with the 80% scale CFD-simulation @ 65kph? Please use the following format: 12.34

9) What is not a 'system' in the Cost Reports Bill of Material ?

A)Electrical

B)Battery

C)Brake system

D)Steering system

10) What is the maximum presentation time during the Bussiness Plan Presentation ?

A)5 minutes

B) 12 minutes

C) 10 minutes

D)There is none

11) You capture this CAN Frame with your scope What happened in the marked section ?

A)It's a CAN FD Transmission

B)During transmission,a collision with another transmitting node occurred

C)There is EMI/Noise coupled onto your CAN bus lines

D)Nothing special,this is a standard CAN 2.0 frame with a bit rate of 1 Mbit/s

E)Probably a broken Transceiver on the sending node

12) A device consumes 30Amps at 12 Volts according to the datasheet (ohmic behavior). The device is supplied by Li-lon accumulator (4s) with 14.4 Volts and an inner resistance of 0.1 Ohm. What is the power loss caused by the inner resistance of the accumulator? (in Watt, 1 decimal) Please use the following format: 12.34

13) The LV system of your car consists of the following electrical consumers: ECU: 2 Amps Water Pump: 6 Amps Fan: 10 Amps other devices: 4 Amps All devices draw constant current, but the fan is only active 75% of the time. Endurance is expected to last exactly 25minutes. What is the absolute minimum battery capacity (in Ah) required in order to finish endurance on battery charge alone? Round to 3 decimals. Pleas use the following format: 12.34

14) You are on the engine dyno adjusting your ECU calibration. To tune the ignition dwell time, you hooked up a current probe to the primary side of coil #1 (yellow trace) and the voltage probe to the ignition output of the ECU (blue trace). What information can you pull from the graph?

A)Your ECU ignition outpout (power stage) is faulty

B)The battery voltage is low

C)Your ignition advance is quite low

D)dwell time could be decreased by-3ms without losing spark energy

E)dwell time should be increased by at keast 2ms

F)You run around 7ms of dwell which is correct

G)you need bigger ignition colls

15) How high is the compression ratio if your engine total volume (displacement plus combustion chamber) 649 ccm and it has a stroke of 15 cm? The gauge pressure inside the cylinder is 80 bar at the highest point, a force of 3.1728*10^4N acting on the piston.

A)11

B)12

C)1/12

D)1/11

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