Are You Smarter than an Undergraduate? March 2025 - PEimpact - Recognizing the impact of PEs

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Are You Smarter than an Undergraduate? March 2025Vladimyr Impact2024-12-04T12:35:37-06:00

Are you smarter than an undergraduate

PDHengineer's monthly quiz for engineers

This St. Patrick’s Day, test your luck with our monthly quiz. Will you be the lucky engineer to top the charts?

Question 1: An AC induction motor pulls the highest current when _____________.
- It is started
- It is running at 75% load
- It is running at full load
- It shuts down

Question 2: The primary method of heat treating aluminum alloys is _____________.
- Precipitation hardening
- Annealing
- Tempering
- Austempering

Question 3: The Hazen-Williams formula is used to calculate ______________.
- Voltage drop in long distance electrical tranmission lines
- Head loss in a liquid piping system
- Shear stress of a hollow circular shaft
- Fatigue load limit of a bearing

Question 4: A system curve for a piping system plots flow rate on the horizontal axis and ________ on the vertical axis.
- Horsepower
- Pump speed
- Head
- Temperature

Question 5: A high Plasticity Index means that a soil has ___________.
- Insignificant clay content
- Mostly sand
- Significant clay content
- Almost no plasticity

Question 6: The primary reason for adding _______ to concrete is to ensure that excess water has a chance to expand when it moves through the freeze-thaw cycle.
- Cement
- Gravel
- Sand
- Air

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