Engineering Knowledge Challenge

A futuristic automotive engineering laboratory filled with advanced technology, electric vehicles, and engineering diagrams, with a quiz overlay.

Engineering Knowledge Challenge

Test your knowledge in engineering principles and automotive technology with this engaging quiz! Ideal for students, teachers, and automotive enthusiasts looking to reinforce their understanding of key concepts.

15 multiple choice questions
Covers topics ranging from electrical systems to physics
Gain insights into your strengths and areas for improvement

15 Questions4 MinutesCreated by TestingCheetah321

1) If the volume of a liquid weighing 3000 kg is 4 cubic metres, 0.75 (rounded) is its:

Specific weight

Specific mass

Specific gravity

None of the above

2) Transformer with ratio 1:20 secondary to primary windings. What is the current in the primary side of the transformer if there is a 10 Ohm load in the secondary side.

I=0.08A

I=0.8A

I=0A

I=1.6A

3)A rocket is stationary in space. If it expels 2000kg of fuel at 3x10^3 m/s, what will it’s final velocity be? Assume its mass was initially 3000kg. Round to the 1st decimal.

4242.6 m/s

3295.8 m/s

6000.0 m/s

3567.2 m/s

5) Chose the wrong sentence

For a monocoque chassis the bottom part of the cockpit must be proven that it has at least the same properties as a steel tube meeting the requirements for side impact structure tubes for buckling modulus, yield strength and absorbed energy.

The front hoop can be encapsulated inside a monocoque chassis.

If a vehicle stalls for more than 2 minutes in the endurance event, it will be scored as a DNF for the run.

It is not allowed for a judge to be present at BPP of a team at both the initial stage and the finals.

6) Select the documents and items that your EV team may not bring on the site of the competition:

Copy of the approved SES

Impact Attenuator Data report

BOMs and DBOMs

ESF

7) Your team use a LiFePO4 TS battery with 120S1P layout. The minimal, nominal and maximal cell voltage is 2.8, 3.3 and 3.65V, the cell capacity is 7.2Ah. Only the rear wheels are driven by independent motors and inverters. The custom designed inverters have 900uF capacitance each. For the discharge circuitry, only a relay and a resistor is used. What is the minimal switching power (contact rating) that the relay must be rated for?

8) If a human being loses 100W through convection what are the calories he must consume through the course of a day?

9) Which of the following are true?

A FBH tube with a area moment of inertia of 8409mm^4 is rules compliant.

No heat-treatment information is needed for the SES in case that the welded parts are made from exactly the same material.

A material with properties equivalent to that of 3 baseline tubes is appropriate for use in the horizontal part of the FBHS.

In side view, no part of the front hoop may be inclined more than 10 degrees from vertical.

A Shoulder Harness should never deviate more than 10 degrees from horizontal in side view.

10) In which of the Cost Report Documents does the team need to list the research and development cost ?

In the Cost Explanation File

In the CBOM

In the DBOM

In neither of the Cost Report Documents

11) Choose the right statements.

The illuminated surface of the brake light must be at least 2.150 sq. in.

The data logger can take up to 570 milliliters of space.

The suspension system is considered rules compliant if it is possible to have 50mm wheel travel (e.g. 25 jounce / 25 rebound)

In autocross, 3rd run, your car exceeds the maximum power limit during 250 ms. Τhe penalty you should get is DQ on the fastest run.

12) Choose the true sentence

The tools presented in the technical inspection must be included in the BOM

In the rain test the vehicle can be equipped with wet tires

If the operating condition is damp a team can use dry tires on the front axle and wet tires on the rear, given that all the tires have the same manufacturer, size and compound.

Teams with composite accumulators must provide proof of the skin shear strength, the perimeter shear strength and the tear-out strength for the accumulator attachment.

13) What isn't true concerning Camber?

Negative camber is when the bottom of the tire is leaning outward.

Looking at a vehicle head on, if the angle between its left tire and the horizontal axis (positive angle = counter-clockwise) is between 0 and 90 degrees, it has positive camber.

Positive camber is suited more for off-road vehicles because it offers better grip.

The camber angle on a vehicle may be adjustable.

14) Select the right sentence:

An extinguisher may be equipped with a manufacturer installed pressure/charge gauge.

Each hydraulic circuit of the brake system must have its own, separate fluid reserve.

The LVMS must be marked with “LV” and a symbol showing a yellow spark in a white edged blue triangle.

A main hoop that has 2.5mm wall thickness, is bent at a radius of 93mm and has an inside tube diameter of 28mm, is rules compliant.

15) Our vehicle completes the Acceleration Event. Its velocity is 126 km/h when it crosses the finish line. How many points did we get, if we assume that its acceleration is constant and the best corrected time was achieved by a vehicle going 133.2 km/h when it crosses the finish line?

65.5

61.7

63.4

59.9

Engineering Knowledge Challenge

Engineering Knowledge Challenge

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