FSG#312

1.The noise test will be measured...

a)fast weighting, dB(A)

b)slow weighting, dB(C)

c)slow weighting, dB(A)

d)fast weighting, dB(C)

2.A car using 190/55 R10 tyres finishes the acceleration with a constant slip of 10%.How many revolutions will a driven wheel have done at the end of the run?

a)73.2

b)56.7

c)33.3

d)102.6

3.Any system on the vehicle that uses a compressed gas as an actuating medium must comply with the following requirements:

a)A pressure regulator must be used and mounted directly onto the water cylinder/tank.

b)The gas lines and fittings must be appropriate for 20% of the possible operating pressure of the system

c)The gas cylinder/tank must be securely mounted to the chassis, engine or transmission

d)The gas lines and fittings must be appropriate for 50% of the possible operating pressure of the system.

4. What statement about the fuel station is NOT correct?

a)Refueling is only allowed at the fuel station.

b)All fuel containers must be DIN approved.

c)Open fuel containers are not permitted at the competition.

d)Waste oil is to be taken to the fuel station for disposal.

5. A car with a wheelbase of 1555 mm and a mass of 305 kg breakes with its maximum deceleration. The friction coefficient of the tires is 1.4. The weight distribution is 42% on the rear axis. The COG is 235 mm over the road surface.Aero forces are not to be concidered. (g=10m/s^2)How much normal force is applied to the front axis?

6.All drivers have to wear fire resistant shoes certified to

a)SFI 3.3 or FIA 8856-2000

b)SFI 3.2 or FIA 8856-3000

c)SFI 3.3 or FIA 8856-3000

d)SFI 3.2 or FIA 8856-2000

7. An isochoric state change of air from 1 bar to 2 bar. The ambient temperature is T = 27°C. What is the temperature after the change of state?

a)327°C

b)54°C

c)30°C

d)400°C

8)Assume the following piece with the middle crack. Given that b=2.362205 inches, thickness=5.2 mm, a tensile load P=63 kN, Kic=30MPa*sqrt(m), σ0=41MPa and a=10mm, calculate the stress intensity factor. Round to 1 decimal.

9) Centaurus Racing Teams’ expenses are 15.692€. At the same time, due to the pandemic, the team’s income this year is 43% lower than the last year. What is the team’s cash flow right now? (Last year’s income was 95.438)

10)A composite material consisting of 40% Carbon Fiber twill 2x2 TC-33 3K from Easy Composites and 60% Polyester Infusion Resin from Easy Composites. If the cross sectional area is 320 mm^2 and the stress of 40 MPa is applied in the longitudinal direction, calculate the magnitude of the load carried by the matrix. (Round to 0 decimals and N)