FSN#2022

An engineer in your team is performing calculations on fluid mechanics. They ask you what the reciprocal of compressibility is. Which is true?

Bulk modulus of elasticity

Young’s modulus of elasticity

Shear modulus of elasticity

Any of the above.

Your team is the first car at the design event during FSN2022 and it’s quite cold for this time of the year, 12 degrees C. To impress the judges, you decide to make some tea for them. What is the minimum required time to prepare the tea, knowing that you have to boil 4 tea cups of 370ml each and you have an electrical heater with a power of 500W

1150 seconds

1190 seconds

990 seconds

1090 seconds

An air as an ideal gas expands adiabatic from a volume of V1 = 1,00l with its pressure of p1 = 10^5 Pa to 1/10 of its original pressure. What volume V2 does the gas reach after it’s expansion? (Round to two decimal places)

5,18 l

10,00 l

0,10 l

0,19 l

What are requirements of using a standard Impact Attenuator?

Test data must be provided by teams that the vehicle will be decelerated at a rate not exceeding 20 g average and 40 g peak.

Test data must be provided that the energy absorbed meets or exceeds 7350 J.

Vehicles with aerodynamic devices and/or sensors in front of the front bulkhead must not exceed the peak deceleration for the combination of the IA assembly and the non-crushable object and prove the design does not exceed 120 kN.

All of the above.

Your team has developed an FS vehicle with a mass of 231.6 kg. For your weekly technical meeting you have stocked 5 beers of 6 kg each. Before you drink the beer, you decide to balance the car and the beers on a lever. The distance between the car and the lever is 1m. What should be the length of the arm supporting the beer to balance the beer and the car?

7.52 m

7.32 m

6.72 m

7.72 m

Your Team Sponsor offers you a Driver’s Harness. After examining the harness and the rules, an engineer in your team reports that the attachment of the harness can not be welded to the chassis structure. Furthermore, the engineer makes 4 statements. Which of these statements is true?

Each attachment must support a load of 19.5 kN

The strenght of all attachment points must be proven by physical testing

Lap and anti-submarine belts can be attached further than 100mm apart

Harness attachments must use 10mm metric grade 8.8 bolts at minimum

One of the most common errors found during the technical inspection process at Formula Student Netherlands is the use of positive locking mechanisms. Which of the following is not allowed?

DIN 6923 Jet Nuts

DIN 463 Tab Washer

DIN 934 Hex Nut

DIN 11024 Cotter Pin

What is true about the Cost & Manufacturing Event?

A negative score can occur in the BOM Discussion if more than 7 assemblies miss from the BOM.

Costs for CFD analysis must be included in the CBOM for the Aerodynamic System

To obtain at least 1 point in the C&M event in 2022, the maximum cost of a vehicle can not exceed EUR 68.972

An assembly may be broken down into parts or sub-assemblies

During Autocross, the driver of Team A misses one gate in the first slalom and one gate in the second slalom. The driver of Team B misses the last two gates in the first slalom. Which penalties are assigned to these teams as a consequence of missing the gates?

10 seconds for both teams

10 seconds for Team A, 20 seconds for Team B

20 seconds for Team A, 10 seconds for Team B

20 seconds for both teams

The figure shows an epicyclic gear train with gears A and B having 40 and 50 teeth, respectively. If the arm C rotates at 200 rpm in anticlockwise direction about the center of gear A which is fixed, then speed of revolution of gear B in rpm would be:

160

250

360

450

Two similar laminates are used in a chassis. The only difference is the core material. What is allowed?

Two different core materials are used with the same ply stacking. Testing the laminate with the core that has the highest shear strength and using the results for both panels is allowed to prove equivalency for both panels.

Two laminates are used with the same core and the ply stacking is doubled. Testing the laminate with the single ply stacking and using the result for both panels (using twice the thickness in the SES for the thicker laminate) is allowed to prove equivalency.

Two laminates with the same ply stacking and the core is doubled. Testing the laminate with the thicker core and using the results for both panels (using half the core thickness for the thinner laminate) is allowed to prove equivalency.

None of the above.

A rear-wheel driven Formula Student vehicle with a limited-slip differential must at least contain the following components within the hydraulic brake system:

Two hydraulic circuits, three brakes, a ‘Brake-by-wire’ system, armored brake lines and a machined steel, aluminum or titanium brake pedal.

One hydraulic circuit, four brakes, armored brake lines and a machined metal brake pedal.

Two hydraulic circuits, four brakes, armored brake lines and a machined steel, aluminum or titanium brake pedal.

Two hydraulic circuits, three brakes, armored brake lines and a machined steel, aluminum or titanium brake pedal.

FSN#2022

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