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Competition entry quiz

Total questions: 10

Worksheet time: 19mins

Name
Class
Date
1.

Who is allowed to declare the car electrically safe?

a)

The Race team lead

b)

The Chief mechanic

c)

The ESO

d)

The Faculty Advisor

2.

 

Calculate the total resistance in Ohm of the shown electrical circuit between point A and B if each of the shown resistors have a value of R = 3Ω.

a)

9.3Ω

b)

3.3Ω

c)

d)

2.2Ω

3.

What is the minimum static ground clearance for any part of the car, including the driver? Excludes tyres

a)

25mm

b)

30mm

c)

35mm

d)

40mm

4.

A car of mass 170kg and with 50:50 weight distribution has un-sprung front and rear wings added with no mass penalty. If the front wing produces 1000N of downforce and the rear 750N of downforce, what is the new force distribution assuming g = 9.81. Give your answer to 1 decimal place in percentage, in the format front value,*rear value*

a)

53.7,46.3

b)

55,45

c)

52.4,47.6

d)

53.657,46.343

e)

55.7,44.3

5.

What must the thickness of a solid steel AIP be when integrated into the Impact Attenuator

a)

1.8mm

b)

1.5mm

c)

2mm

d)

3mm

e)

2.4mm

6.

A steel bar is 1.75m long and has a rectangular cross-section 38mm x 50mm. It is carried in ball joints at each end and is subjected to axial compression. The modulus elasticity is 206GPa and the yield stress in compression is 228 MPa. Determine: (a) the critical buckling load (b) the critical end-load intensity

a)

151.79 kN

b)

199.72 kN

c)

105.11 Mpa

d)

79.9 Mpa

7.

If the shutdown circuit is opened by the AMS or the IMD, it has to be latched open by a non-programmable logic that can only be manually reset by a person at the vehicle who is not the driver.

a)

True

b)

False

8.

During charging, the IMD opens the safety circuit and charging is interrupted. What is true regarding automatic resume?

a)

Automatic error mitigation strategies must be detailed in the FMEA

b)

The charger may resume charging if the safety circuit is closed again (i.e. when/if the IMD error goes away)

c)

The charger is not allowed to automatically resume charging

d)

None of the above

9.

Calculate the potential difference across the 15 Ω resistor.

a)

5.0V

b)

6.0V

c)

3.6V

d)

4.2V

e)

Data not sufficient

10.

Which Dynamic Event carries the most points?

a)

Autocross

b)

Skid Pad

c)

Endurance

d)

Acceleration