Quiz Preparation

Which of the following requirements are a must for all non DV electric cars with wings, when moving the vehicle on the competition site? (Multiple choice)

How many sets of dry tyres are allowed to be used in the manual dynamic disciplines during one event?

Can a team be eliminated from the Engineering Design Event by the judges, if every document of theirs was accepted and they are present at the Engineering Design Event?

In the event of unsportsmanlike conduct, 25 penalty points will be deducted from the team’s overall score. A second violation will result in an additional 100 penalty points deducted from the team’s overall score.

What is the length of the acceleration track?

What is the minimum number of points a team recieves for finishing an autocross run?

What is the minimum allowed ground clearance, excluding driver?

How many points are assigned for the Overall Vehicle Concept in the Engineering Design Event? (Multiple choice)

How many numbers of skidpad runs does a team have?

What happens if a driver completes more than two runs in a discipline?

What is the minimum diameter of a shutdown button placed on the side of the vehicle behind the driver’s compartment?

The following parts are part of the Shutdown Circuit (Multiple choice)

Teams who remove their vehicle from the event site after
the event has begun will be disqualified from the event.

What is the minimum amount of ASR needed at the Event when being a DV Team?

Which of the following requirements is a must for all types of vehicles, when moving the vehicle on the competition site?

A team missed the intial deadline for a document and submitted this 24 hours after the deadline. After that the team’s document got accepted. The team will recieve a 10 point penalty.

What does the yellow flag mean during the driving disciplines?

What is the area of the cockpit opening template (including the area allowed for the steering) in square inches rounded to one decimal place?

To build your race car you need a part what can be bought on the public market for 450 EUR per piece. Your plan is to sell 1200 race cars the next five years. If you will manufacture the part by yourself, you need an investment of 400.000 EUR for the installation. Furthermore, you need to pay 20.000 EUR per year for the machine operator. The material costs are 50 EUR per piece. The machine cannot be sold after the usage. What is the cost of one piece of the own manufactured parts? Give answer as one whole number

Each team must have two 0.8kg fire extinguishers.

What is the minimum height of the characters of the car number?

What is the minimum diameter of the shutdown button in the cockpit?

How long is water sprayed on the car during the rain test?

What is the minimum tread depth of the rain tires?

What is the penatly for hitting over a cone during skidpad?

What is the diameter of the outside skidpad circle?

Your team completes their best autocross run in 84.9 secs and that was the fastest overall time. How many points did your team recieve for autocross? Round to one decimal place.

What is the minimum allowed static ground clearance, including driver?

Your team recieves 14.7 points for their autocross run. The fastest time overall was 69.1 secs. How long was your team’s fastest run? Round to one decimal place.

Your team completes their best manual acceleration run in 3.3 secs, but at the end of the run knocks over one cone. The fastest team overall completed their run in 4.1 secs. How many points did your team recieve for acceleration? Round to one decimal place.

Which of the following statements about LV battery packs with lithium based chemistry other than LiFePo4 is not true?

How long will it take to discharge C1 below 60V using the following constant current sink if it is initially charged at 565V? (MOSFET’s VGSth: 4V) Give answer to two decimal places in secs.

Three inductors are connected as shown in the following figure:

Given that L1 = 2L2, find L1 and L2 such that the equivalence inductance is L = 0.7 H.
Give your answers in Henry, rounded to three decimal places separated by a comma (L1, L2)

How much current flows when 99 C passes down a wire in 11 s? Give answer in amps as a whole number.

You have an electric car with these specifications:

• ten 12V batteries
• constant velocity of 80 km/h
• flat road (friction 1.2kN -> aerodynamic load included)
• load for battery 160 Ah
• efficiency of 80% (Motor)

How far can you drive with one load? Give answer to nearest whol number in km.

A capacitor with a capacitance of 100 μF is currently charged to a voltage of 199.8V. How much additional energy is needed to charge it to a voltage of 301.4V. Give answer to 4 significant figures in Joules

Your BSPD has been triggered although the driver did not touch the driving pedal. What could have gone wrong? (multiple choice)

Which statements about the travel of the driving pedal is correct

Which of the following requirements of the brake light assembly must be met to be rules compliant? (multiple choice)

Your head of powertrain has found a battery cell with excellent specifications and yet cheap. He decides upon a 142s2p accumulator configuration using the cells with a capacity of 5.8 Ah. The manufacturer specifies an internal impedance of 1.5 mOhm. However, after a while you notice the cells are of horrible quality and their real capacity varies significantly leading to an unbalanced accumulator.

He performed experiements to find an approximation of the cells SoC relation to their open-circuit voltage (EMF) as shown in the following figure:

Assume due to imbalance, exactly half of the accumulators cells are at 40% SoC and half at 80% SoC. What current will be drawn at the maximum allowed power usage? Give answer in Amps to nearest whole number

How much current flows when 99 C passes down a wire in 11 s? Give answer in amps as a whole number.

Calculate the pull force on the plate in Newton. Round to 2 numbers seperated by a point (exanple: 9.13)

A water tank under a pressure of p = 117.72 kPa has three pipes connected to it, which are sealed 5 meters below the water surface by three plates with areas A₁, A₂, and A₃.
Task:
Sort the pressures p₁, p₂, and p₃ according to their magnitude.

For a horizontally positioned, non-insulated steam pipe with a length of l=3 m and a diameter of d_a=0.1 the convective heat loss Q_point is to be calculated. The temperature of the surrounding air is θ_f=30∘C and that of the outer wall surface is θ_w=170∘C.

Input the result in kW and round to two decimal numbers seperated by a point without thr unit (example: 145.35)

Calculate the gravitational potential energy of a 4 kg object at 15 m above Earth’s surface with gravitational field strength of 9.81 N/kg. Give answer to three significant figures in J.

The Wet Skid Pad World Record was set at FSN2019 by TU Delft. They managed to set a time of 4.901 for the left circle and a time of 5.031 for the right circle. Assume the run was completed perfectly along the center line of the circles. What was their average speed during this record run? Give answer to two decimal places in mph.

During last year acceleration a top speed of 100 km/h was reached. Due to big improvements in the new drivetrain, the new vehicle reaches a top speed of 120 km/h. The aerodynamics chief has some worries about the stability of the rear wing bracing due to the higher aerodynamics load. Given the geometry below, by how much % does the bearing force in point A change in comparison to last year? (The aerodynamic package did not change and therefore some values can be assumed for both vehicles). Give answer rounded to one decimal place.

CL=3.8     CD=1.2     A=1 m²     rho=1.1 kg/m³     L1=50 mm     L2= 100 mm     H1= 125 mm     H2= 165mm

Calculate the force Fc working at point C. Give answer in kN rounded to one decimal place.

Forces at point A: Rax = 3kN, Ray = 9kN, Ma = 10kN/m

A lorry contains an engine with a power of 0.255 W. The lorry drives for 51 s. Calculate the energy transferred in Joules and round to one decimal places.