Mechanical Quiz #11

A mechanical engineering quiz with an image of vehicles and engineering schematics in the background, emphasizing endurance racing dynamics and design.

Mechanical Quiz #11

Test your knowledge in mechanical engineering and design with our challenging quiz! This quiz focuses on endurance vehicle dynamics, engineering guidelines, and design regulations.

11 engaging questions
Multiple choice and text answers
Evaluate your understanding of mechanical principles

11 Questions3 MinutesCreated by DesignMaster420

1) Time keeping has registered a total time of t=22,25min for the fastest endurance vehicle, but it knocked 5 cones (DOO). Our team has a total time of t=27,50 min but we knocked 6 cones (DOO) and we did 1 off-course (OC). Which is our total Endurance score? The answer must be in the form of 3.76.

2) Which of the following sentences are true:

A) Every team may re-upload the SES if any changes to the original SES become necessary due to the approval process.

B) For activities on the inactive TS the vehicle must be jacked up and the driven wheels removed.

C) All team captains and drivers on a particular day must attend the team briefing for that day.

D) Vehicles with wings are required to have two team members walking on either side of the vehicle whenever the vehicle is being pushed.

3) You have been de-registered. Your team just found out that it has been deregistered. What of the following could have happened?

A. You submitted SESA on St Patrick’s day while the deadline was on March 9.

B. Your resubmitted VSV was not showing an appropriate running vehicle.

C. You submitted the BPPV 15 days after the deadline.

D. You failed to prove your ESO’s qualified.

E. Your team was caught drunk at the competition site

4) A car and a truck are both travelling with a constant speed of 20 m/s on a narrow road. The car is 10m behind the truck. The truck driver suddenly applies his brakes, causing the truck to decelerate at a constant rate of 2m/s^2. Two seconds later the driver of the car applies his brakes and marginally manages to avoid a rear-end collision. Determine the constant deceleration of the car in m/s^2. Round your answer to the first decimal.

5) To save weight, you have decided to replace the steel brackets for the brake pedal mounting for new aluminum ones. Is this allowed by the rules?

A. Yes

B. Yes, but only if the new brackets are machined

C. No, only steel is allowed for these brackets

D. No, only titanium is allowed for these brackets

6) What is true about the Engineering Design Event?

A. Judges may be selected on the basis of the quality of the EDR

B. Any EDR that exceeds 8 pages will not be reviewed at all

C. A maximum of 5 points is awarded for the Design Spec Sheet (DSS)

D. If included, cover sheets and tables of contents will count as drawing pages.

7) Choose the incorrect statements:

A. A FBH tube with a area moment of inertia of 8409mm4 is rules compliant.

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

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

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

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

8) The following figure depicts an elevator. M1 is used to lift M2. If M2 = 200kg, what should M1’s mass be, so that M2 is lifted upwards at a steady pace?

9) Choose the correct sentences:

A. A harness attachment to a monocoque using two 6mm metric grade 8.8 bolts (or bolts of an equivalent norm) and steel backing plates with a thickness of 2 mm is allowed

B. To measure tire pressure, a pressure sensor can be installed inside the tire.

C. Cutting a carbon fiber endplate to adjust a flap’s angle of attack, while in the pits before a dynamic event is allowed.

D. Scatter shields for high-speed rotating final drivetrain parts that have an OEM casing may be used.

10) Which of the following sentences are wrong?

A. The tires presented in the technical inspection have to be included in the BOM

B. A team is allowed to make quick adjustments to the suspension system at the driver changing procedure in the endurance event

C. When performing the perimeter shear test on composite structures, materials with different core thicknesses but otherwise identical construction may use material properties derived from a single test panel

D. An aerodynamic device behind the wheels that reaches a height of 250mm is not allowed to extend further than the vertical planes that are defined from the outermost surfaces of the surface envelope, when looking at the vehicle from the front.

Mechanical Quiz #11

Mechanical Quiz #11

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