2nd FS Checz rules quiz

It is not required to install AIRs in a 48 V accumulator for the tractive system.

Yes

Only if lithium based cells are used

Which measure(s) has/have to be taken if the power to the motors is >10 kW and braking hard is detected for more than 500 ms at the same time? The pedal is driving 0 Nm torque

Open shutdown circuit and 0 Nm torque request to the motor controller

Open shutdown circuit

0 Nm torque request to the motor controller

An electrical load is connected to a 12 V battery via a copper cable, with an inductance of 1 uH and a resistance of 10 Ohm. In steady state (t0 .... t1), the load draws current of 2 A. In t1, the characteristics of the load change and the current starts rising at 2 A/us. What is the voltage across the load in the moment directly after the change?

6.5

9.5

The COP (center of pressure) is 0.1 m behing the COG(center of gravity) and at the same height. Your car has a 50/50 weight distrubution and the height of the COG from the ground is 30 cm. The car is currently driving at 100 km/h. Calculate the normal force of the front tire in N assuming that, that there is no weight transfer. You can use the following values in your calculations: m = 240 kg, cL = 3.2, cD = 1.1, A = 1 m2, ρ = 1.1 kg/m3, wheelbase L = 1.53 m.

698

838

450

890

In the last event you were driving at minimal allowed ground clereance. The COG of your car was 30 cm above the ground. Your suspended mass is 200 kg, while the unsuspended mass is 40 kg. For the next Event you know, that there will be a lot of bumps, therefore you increase the your ground clearance to 50 mm. By how much in mm will the COG of your car change?

17.9

17.0

15.5

Which statements about TSAL are wrong?

Be red in color and flash continiously with a frequency between 2 Hz and 5 Hz if and only if the TS is active.

The entire illuminated surface of the TSAL must be clearly visible, except for small angles which are blocked by the main hoop.

The TSAL and all needed circuitry must be hard wired electronics. Software control is not permitted.

The voltage outside the AC must be measured independantly across DC-Link capacitors in each housing with DC-Link capacitors at the vehicle side of the AIRs inside the AC.

Your slot for electrical inspection is 10:20. You notice a critical error at 10:00 and inform the officials immediatelly (10:02), that you will not be able to attend for your electrical inspection time slot. What are the consequences?

You must queue for the re-inspection when you are ready for electrical inspection.

You receive a new time slot at the end of the inspection order.

You receive a new time slot at the end of the inspection order and 5 points penalty.

You must queue for the re-inspection when you are ready for electrical inspection and you receive a 5 point penalty.

Which of the following is not possible sequence for technical inspection regarding the beginning of the respective inspection?

Accumulator, electrical, mechanical, tilt test, pre-, rain test, brake test.

Accumulator, electrical, pre-, mechanical, tilt test,rain test, brake test.

mechanical, accumulator, pre-, electrical, tilt test,rain test, brake test.

pre-, mechanical, accumulator, electrical, tilt test,rain test, brake test.

A team wants their tyres to be at 1.8bar when they reach 85oC, but the pits are at 30oC, assuming Ideal Gas, at what pressure should they inflate the tyres?

1.64 bar

1.56 bar

1.48 bar

1.52 bar

Finite displacement field in x is given by u=2xˆ2+4yˆ2+6xy. What is the strain in direction x.

4x.

4x+6y.

Isotropic material must have Poisson's ratio in range

-0.5 < ν < 0.5

-1 < ν < 0.5

0 < ν < 1

0 < ν < 0.5