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Physics and Engineering Challenge Quiz

Test your knowledge of physics and engineering concepts through this challenging quiz! With 12 carefully crafted questions, you will encounter various scenarios that require both theoretical understanding and practical application.

Each question is designed to assess your critical thinking and problem-solving skills in the fields of:

Dynamics and Kinematics
Thermodynamics
Mechanical Systems
Economic Principles in Engineering

12 Questions3 MinutesCreated by TestingTide572

A thin cylindrical wheel of radius r = 40 cm is allowed to spin on a frictionless axle. The wheel, which is initially at rest, has a force applied at an angle of 20 degrees to its tangent of magnitude 50N. The wheel has a moment of inertia equal to 20 kg m^2. The angular acceleration of the wheel is :

1.26 m/s^2

0.26 rad/s^2

0.94 rad/s^2

1 m/s^2

An ice skater spins at ω1= 4π rad/s with her arms extended. If her moment of inertia with arms folded is 80% of that with arms extended. Calculate the fractional change in kinetic energy .

0.3

1.0

0.25

0.5

A ramp in an amusement park is frictionless. A smooth object slides down the ramp and comes down through a height h=6m What distance d is necessary to stop the object on the flat track if the coefficient of friction μ=0,6 ?

15.00m

8.75m

10.00m

20.00m

Which of the statements is true?

Teams can open an accumulator container to demonstrate the assembly architecture to the judges to add more point in the Design event.

It is not acceptable for a temperature measuring device to be placed less than 15mm along the high current path away from the terminal in direct contact with the respective busbar.

Axial force Fx is acting in a cross sectional area in distance x in a vertical beam due to its own weight. The Axial Stress of that force is relevant to the cross section area.

The TS accumulator container must consist of electrically insulating vertical walls with minimum 75% of the height of the external vertical walls, that divide the container into a section of a minimum 26.455lbs.

Which of the following factors will cause the demand curve for labor to shift to the right?

The demand for the product by labor declines.

The prices of substitute inputs fall.

The productivity of labor increases.

The wage rate declines.

None of the above.

Your team set the fastest lap time at the Autocross event with a time of 75seconds on your first and only run. However, on the final scoring sheet your team is listed in fifth place with 73.8 out of 100 points, while the new winner of the event has an uncorrected elapsed time of 84seconds.

Your team: 3 DOO, 1 OC, Winner: 1 DOO

Your team: 8 DOO

Your team: 2 DOO, 1 OC

Your team: 2 DOO, 2 OC, Winner: 1 OC

None of the above

A heat pump works with a pump of 250W and is adding heat to a hot reservoir with a rate of 1500J/s. If that heat pump was used for cooling, what would its coefficiency of cooling be?

0.2

0.1667

0.8333

0.45

To prevent vehicle roll during cornerning, the roll center has to be:

At ⅔ of the vehicle Center of Gravity height

At the level of the vehicle CoG

At ⅓ of the unsprung mass CoG height

At the level of the sprung mass CoG

Below the road surface

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?

100kg

50kg

66.67kg

200kg

Which of the following sentences is false?

The lap belt mounting bracket fasteners must have a minimum ultimate tensile load of 6564.4 lbf (rounded to 1st decimal).

Parts of the vehicle within 100 mm of any TS component, that may become electrically conductive, must have a resistance below 5 Ω to LVS ground.

The test speed for an industrial engine that corresponds to an avg piston speed is 50 ft/s (rounded to first decimal).

During an acceleration run, it’s possible to perform a burnout before crossing the starting line in order to have a better start.

The VSV deadline is in 16/01/2020 19:30. The BPPV was submitted in 19/01/2020 20:00. The VSV was submitted 4 days 22 hours & 105minutes after the BPP sumbission. The VSV was characterized as failed, which was announced in 26/01/2020 23:00. The corrected VSV was submitted in 30/01/2020 17:00. Calculate to total penalty points (round to 1st decimal). Which answer is right?

Consider that Aristurtle and Prom are non-finalists for all the Static Events of the EV category of FSG19 competition and the team with the best score in each of BPP & Cost Events is the first of the non-finalists. Collect the scores awarded to the teams during the judging and calculate the absolute difference between the Static Event’s total score of the two teams. Round to 1st decimal. Which answer is right?

20.0

20.1

21.0

21.1

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