FS EAST

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FS EAST Challenge

Test your knowledge in engineering and physics with the FS EAST Quiz! This quiz features ten challenging questions that cover various topics including mechanics, thermodynamics, and electrical engineering.

Whether you're a student looking to assess your understanding or a professional wanting to refresh your skills, this quiz is designed for you. Key features include:

Multiple choice and checkbox questions
Relevant themes from engineering and racing
Instant feedback on answers

10 Questions2 MinutesCreated by CalculatingEngineer732

1.A ballon with a spherical shape and radius 14m is filled with Helium gas (density p = 0.18 kg/m^3). Calculate approximately the maximum load in kg that the balloon can lift given than its skin is 40kg and density of air p = 1.2kg/m^3

11723.45

11683.92

11443.13

11323.34

2.Which of the following are false?

Suspension springs may be changed after technical inspection process

At least one unused and in date fire extinguisher must be present in pre- inspection

During brake test procedure, the driver must deactivate the TS and brake using only the mechanical brakes

Your team uploaded the video 38 hours before the deadline but 82 hours after the deadline received a “fail” for the video and reuploaded it after 235 hours from the notification. Your team gets a penalty of 49 points.

3.A power plant condenser, condenses the steam at temperatures of 80°C. The cooling water enters at 25°C and leaves at 45°C. Which is approximately LMTD of the condenser?

44.25°C

37.2°C

38.3°C

40.2°C

4.What will Young's Modulus be approximately for a 35 mm square bar and with a length of 500mm when it lengthens by 0.7 mm under a load of 50kN?

135GPa

29.15GPa

67.45GPa

74.5GPa

5.A fully charged mobile phone with a 15 V battery is good for a 10 minute talktime. Assume that, during the talk-time the battery delivers a constant current of 2.5 A and its voltage drops linearly from 15 V to 12.5 V as shown in the figure. How much energy does the battery deliver during this talk-time?

13.2kJ

20.625kJ

18.67kJ

16.56kJ

6.A single-degree-freedom spring-mass system is subjected to a sinusoidal force of 15N amplitude and frequency ω along the axis of the spring. The stiffness of the spring is 140N/m, damping factor is 0.4 and the undamped natural frequency is 10 ω. At steady state, the amplitude of vibration (in m) is approximately

0.07

0.08

0.09

0.12

7.The length of the acceleration track is 75 metres. Hypothetically the acceleration of the cars is constant, and linear, without slip. The vehicle starts from the starting line of the Acceleration track and then covers 75 metres. At the finish line, the speed of the racecar is 99km/h. How much time it is needed for the car complete the Acceleration Event and what was the acceleration of the car?

Acceleartion 4.5m/s^2, Time 6.1s

Acceleartion 5.042m/s^2 Time 5.455s

Acceleartion 3.6m/s^2, Time 7.64s

Acceleartion 4.7m/s^2, Time 5.85s

8.Which of the following statements are false?

The inertia switch can be reset by programmable logic.

All vehicles must have a floor closeout made of one or more panels, which separate the driver from the ground and is extended from the front hoop to the firewall.

The DC Link Capacitors must be discharged after an opened HVD.

In slaloms during the Endurance Dynamic Event the cones may be placed in a straight line with 7 m spacing

9.If R=4Ω calculate the total resistance bteween a and b vertices.

5/6Ω

10/3Ω

7/3Ω

7/6Ω

10.Determing the minimum value of relative dielectric constant ε of a dielectric plate with thickness d so that with the prolapse of a wave on one side at an angle θi 45 degrees will restrict the energy of the spreading wave inside plate.

2.3

1.2

1.5

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