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Composite Materials and Engineering Fundamentals Quiz

Test your knowledge on composite materials, circuit design, suspension systems, and automotive engineering with this challenging quiz.

Explore 15 diverse questions covering various engineering topics.
Designed for students, engineers, and enthusiasts alike.

15 Questions4 MinutesCreated by EngineeringEagle231

Regarding the certainty and falsehood of failure criteria for composites, which statement is different to the others?

The general expression of the Tsai-Wu criterion is an ellipse in the space of stresses.

Tsai-Wu aims to generalize the Tsai-Hill failure criterion by distinguishing between compression resistance and tensile strength.

Hoffman is a failure criteria based on Tsai Hill criteria. It distinguishes between tensile and compression stresses.

Tsai-Wu and Hoffmann are both quadratic failure criteria. This means that they take into account the interaction between stresses in different directions.

Tsai-Hill, Tsai-Wu and Hoffman theories are used for failure analysis in multi-layered graphite/epoxy structure exposed to thermomechanical loading.

Interfiber failure or interfiber fracture is not contemplated by Puck criteria.

Design a non-inverting active low pass filter circuit with a cut-off frequency of 159Hz and an input impedance of 10kΩ. For the amplification part of the circuit, you have available a resistor of 1kΩ and 9 kΩ. Which is the gain at low frequencies and which capacitor should you use to dimension the circuit?

What's wrong?

It is recommended to weld another tube, connecting the MH Brace and the MH horizontally

If the attachment of the processing unit is moved at a distance lower than 50mm of the point connecting the MH and brace, no further design changes are required.

This processing unit box in this location is not compatible with aerodynamic devices.

Because of the location of the processing unit, it is considered an aerodynamic device.

Nothing is wrong.

Regarding the certainty and falsehood of the following statements, which one is different to the others?

A laminated attachment of the AIP to the front bulkhead will be not accepted for FSG 2019.

The front hoop bracing structure must start at front hoop and must end in a structure in front of the drivers feet.

All accumulator container materials must be fire retardant.

TSAL including mounting must be in the roll over protection envelope.

Wheels do not need to be grounded anymore.

The temperature rating for TS wiring, connections and insulation must be at least 90℃

Your team is dimensioning the steering actuator. You have purchased two motors with a torque of 0,5Nm and a speed of 3000 rpm. Which values for Z2 and Z3 will work if you need at least 30Nm to move the steering column and a speed of at least 100rpm? The number of teeth for the motors are Z1=Z7= 6; Z4= 20; Z2=Z6; Z3=Z5. Z2 and Z3 rotate solidary in the same axle (same with Z5 and Z6).

Rgarding the following images, which are the dynamic parameters shown? Rear view, Top view, Wheel side view, Top view

Positive camber, Negative slip angle, Toe-in, Pro-ackerman

Negative camber, Toe-in, Positive caster, Anti-ackerman

Positive camber, Toe-out, Negative caster, Anti-ackerman

Negative camber, Toe-out, negative caster, Pro-ackerman

Regarding the falsehood and certainty of the following sentences, which is different to the others?

The camber is used to prevent wheel deformation while cornering.

The more positive the caster is, the less stable the car is.

Kingpin is the same as caster.

Toe-out is the best option for rainy conditions.

Our combustion car is at the endurance event with other combustion cars and the marshall has given us a blue flag. The speed of our car is 20m/s and we are perceiving a noise of 101,415dB. We know that the car behind us has passed scrutineering with difficulties because their idle speed was not constant.

The speed of the other car is 7,09 m/s

Stupid marshal. F@%€ YOU!

The speed of the car is 24,92m/s

The speed of the car is 44,97m/s

A 2-D element is subjected to the forces shown in the figure. Which will be the maximum principal stress, its direction, the maximum shear strength and the plane where it actuates?

Which is the value of FAx, FAy, FBx and FBy? F1=200N, F2=350N, F3=250N, F4=300N, θ1= 30º, θ4= 20º, L1= 100mm, L2= 70mm, L3= 60mm, L4= 150mm, L= 400mm.

FAx= 108,70N; FAy= 155,94N; FBx= 0N; FBy= 241,45N

FAx= 108,70N; FAy= 0N; FBx= 155,94N; FBy= 241,45N

FAx= 100N; FAy= 156N; FBx= 0N; FBy= 240N

FAx= 100N; FAy= -156N; FBx= 0N; FBy= 240N

FAx= 108,70N; FAy= 155,94N; FBx= 0N; FBy= -241,45N

FAx= 108,70N; FAy= -155,94N; FBx= 0N; FBy= 241,45N

FAx= -108,70N; FAy= 155,94N; FBx= 0N; FBy= -241,45N

There is not enough information to solve the problem numerically.

Regarding the previous question, is the non-welded steel tube in the picture appropiate for this application?

Yes

Only if it is flipped 90º. In this case the second moment of inertia is enough to withstand the forces.

No, even if it is flipped 90º, the tube will not withstand the forces without deforming plastically.

There is not enough information to solve this problem numerically.

Suppose we have two computers A and B. Computer A has a clock cycle of 1ns and performs 2 instructions per cycle. Computer B, instead, has a clock cycle of 600 ps and performs 1,25 instructions per cycle. Computer A has to process X instructions and Computer B 1,1·X instructions. Which one will be faster?

Computer A will be faster.

Computer B will be faster.

They will both take the same amount of time.

If our IA test data has peaks above 40g, which kind of filter must be applied?

Purple

Orange

Green

You don't have to apply any kind of filter if the facility is compliant with the euro NCAP

You must apply a 3rd order low pass Butterworth filter if the test facility is not compliant with EU directives.

A car is driving a Skidpad in the middle of the track. The car weights 260kg (with Driver) and 230kg (Driverless mode) and produces addition 1,5kN of downforce at a speed of 100km/h. The friction coefficient is 1,4. What minimum time is achievable with driver? And without driver (Driverless mode)?

T(driver)= 4,871s; t(less)= 4,847s

T(driver)= 4,871s; t(less)= 4,837s

T(driver)= 4,891s; t(less)= 4,837s

T(driver)= 4,891s; t(less)= 4,807s

T(driver)= 4,871s; t(less)= 4,831s

T(driver)= 4,871s; t(less)= 4,834s

T(driver)= 4,837s; t(less)= 4,871s

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Composite Materials and Engineering Fundamentals Quiz

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