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An engaging and colorful image depicting engineering concepts such as mechanical levers, electrical circuits, and a phase diagram in a creative and visually appealing layout.

Engineering Challenge Quiz

Test your knowledge with our exciting Engineering Challenge Quiz! This quiz is designed to challenge your understanding of various concepts in engineering and technology across multiple disciplines.

Whether you're a student, a professional, or simply an enthusiast, you'll find these questions engaging and educational. Topics include:

Strain calculations
Electrical engineering
Mechanical systems
Phase diagrams
Voltage calculations

10 Questions2 MinutesCreated by CalculatingEagle742

2) Calculate the necessary series “dropping” resistor value to operate a 1.8 volt, 20 mA LED from a 34 volt DC power source (answer in Ω). Also, calculate the power dissipated by the resistor while operating. (answer in mW).

4) After the Business Plan Presentation event your team has collected 54 points and will not be participating in the finals. The other 8 teams participating in the event have collected the following points after the initial judging:

Team A: 70

Team B: 65

Team C: 43

Team D: 55

Team E: 61

Team F: 69

Team G: 71

Team H: 23

Teams A, G, F and B are considered finalists and will participate in the Finals. What will be the final business plan scoring of your team? (Use 3 decimals, not rounded up).

5) A researcher performed experiments with both human and animal subjects to
determine the effects of electric currents on the body. A table showing his
research data is presented here:

Assuming a skin contact resistance of 600 Ω for a sweaty hand, 1000 Ω of
resistance for foot-to-ground contact, 50 Ω internal body resistance, 70 Ω of
resistance through the soil from the person’s location to the earth ground
point, and a male victim, calculate the amount of voltage necessary to achieve
pain with loss of voluntary muscle control , for the following circuit: (Answer
in Volts).

6) A silver/copper binary phase diagram is shown below. An alloy that is 70% copper by weight is fully melted and allowed to cool slowly. The temperature at which solidification begins is most nearly:

8) Choose the false statement:

In the cost and manufacturing event, a team that does not qualify for the finals can score a maximum of 95 points.

A team can score 14 points in the “Demonstration and Structure” category in the Business Plan Presentation event.

At “Trackdrive” event the length of the track can be 272m.

A violation to the procedure of driver change may lead to a time penalty of three minutes.

Failure of a team member to follow an instruction or command directed specifically to that team or team member will result in 25 penalty points being deducted from the team’s overall score.

9) Which of the following inversions of four bar chain, convert oscillatory motion from one lever to another lever?

Ackermann steering gear mechanism

Beam engine mechanism

Coupled wheels of locomotive

All of the above

10) Calculate the discharge time for a battery with an n value of 1.2 and a C value of 200, given a discharge current of 25 amps, using Peukert’s Formula.

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Engineering Challenge Quiz

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