FSG#114_DONE 20.12.2020

1.How much Energy is absorbed by an object traveling at 7m/s (8m/s) with a mass of 300kg (330kg) when completely halted in 1.7s (1.5s)?

a. 7340J (10562J)

b. 7320J (10561J)

c. 7350J (10560J)

d. 7353J (10550J)

2.The steering wheel is connected to the wheels through a cardan shaft ending into a steering rack with a transmission ratio of 0,2094 mm/°. The input shaft gets a rotation of α=80° and the bend angle is β=60°. What is the stroke at the left tie rod?

a. 13,4016mm

b. 15,703mm

c. 11,2mm

d. 23,902mm

3.The CL value of a wing being blown with 35m/s, that creates 330 N downforce with a surface area of 0,18 m² is 2,401. How cold is it when the medium around the wing is air?

a. 20°C

b. 35°C

c. 30°C

d. 10°C

4.What is the CL value of a wing being blown with 53 m/s, that creates 420 N downforce with a surface area of 0,06 m² in a medium with an air density of 1,1839 kg/m³?

a. 3,9

b. 3,3

c. 2.4

d. 4,2

5.A car has its rear and front wings mounted in the highest positions allowed by the regulations. The distance - measured on the symmetry plane of the car - between the highest point of the rear wing (point A - the most rearward point of the car) and the highest point of the front wing (point B - the most forward point of the car) is 3.156358 yards. Given that both points are positioned as far as allowed by the regulations (forward and rearward) from the tyres and the car is fitted with four 150/65R13 tyres, what is the car’s wheelbase? Answer in yards and round to 2 decimal digits.

a. 1.54

b. 1.48

c. 1.62

d. 1.75

6.Which students are not allowed to participate on the event:

a) students doing a Master

b) students doing a bachelor

c) students doing a PhD

8.The top of the steering wheel is 1.929134 inches above the point where the front hoop bracing structure is attached to the front hoop when the wheels are pointing straight. Also, the front hoop bracing structure is attached 0.0541339 yards below the top-most surface of the front hoop. Is the car rule compliant?

A) Yes.

B) No.

C) There is not enough information.

9.Your car has a weight distribution of 55% on the front axle and a Wheelbase of 1650mm. You change something in your car and your CoG moves 20 mm backwards. Which answer is right:

a) your weight distribution is now 53,79%

b) your weight distribution is now 56,21%

c) your weight distribution is now 43,79%

d) your weight distribution is now 46,21%

10.Your car has a smooth and a hard spring and they are both not onto the block. Which spring stiffness has your car?c1=20N/mm c2=45N/mm

a)25N/mm

b)65N/mm

c)13,8 N/mm

d)36 N/mm

11.A vehicle with m=250kg and 4springs with 40N/mm on each wheel drive over a road with a sinus shape with a period of 5m. At which speed, the vehicle is in its natural frequency.Simplifications: The vehicle can be simplified as 1 mass and 1 Spring

a) 20m/s

b) 72.5km/h

c) 10.1m/s

d) 63.2m/s

12.Which of the following components are not a primary structure:

a) Main hoop

b) Front bulkhead

c) Roll hoop bracing

d) Firewall

13.A team is using a braking system where the braking power is transmitted from the brake pedal to the wheels via four bowden cables without any electronic means. Each bowden cable consists of a flexible tube inside of which there is a thick steel wire. Is this team braking ruleT 6.1.4?

A) Yes.

B) No.

C) There is not enough information.

14.A car has its rear wing mounted in the highest position allowed by the regulations and it is fitted with four identical tyres of type x/62R13. The vertical distance between the highest point of the rear wing and the centerline of the tyres is 37.0338583 inches. Find x. Answer in millimeters and round to 0 decimal digits.

a. 151

b. 152

c. 153

d. 154

15.What is the x-coordinate of the local Maximum of the following Term? 3x^2+((35)^2)x - (3/2)x³

(3/2)+√(818/3)

(2/3)+√(818/2)

(3/2)+√(828/3)

(2/3)+√(818/3)