FS Fotkatzik
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
1) Finite displacement field in x is given by u=8xˆ2+4000yˆ2+xy. What is the strain in direction x.
16x+8000y+xy
16x+y
8000y+x
16x
8x+y
4000y
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).
1820, 1200
2300, 753
470, 400
1610, 644
541, 237
4230, 522
1700, 680
3) Which of the following inputs will result in Y=0?
A=1, B=1, C=1
A=0, B=0, C=0
A=0, B=1, C=0
A=0, B=0, C=1
A=1, B=0, C=1
A=0, B=1, C=1
None of the above
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).
102.357
54.344
61.967
67.943
49.993
57.568
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:
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).
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).
27.5 V
26 V
27 V
26.5 V
28 V
30 V
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:
962 C
920 o C
800 o C
780 o C
899 o C
1084 o C
7) Calculate the overall voltage gain of this amplifier circuit (in units of decibels).
17
8.7
1
18.8
19.2
65.6
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.
2.1 hours
14256 seconds
13680 seconds
246 minutes
15128 seconds
4.7 hours
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