Are You Smarter than an Undergraduate? January 2026 - PEimpact - Recognizing the impact of PEs

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Are You Smarter than an Undergraduate? January 2026lemleonardia99p2025-12-30T16:45:11-06:00

Are you smarter than an undergraduate

PDHengineer's monthly quiz for engineers

Stick With What Works. Kick off the year with questions held together by engineering logic and maybe a little duct tape.

Question 1: What is the purpose of curing concrete?
- To reduce shrinkage cracks
- To keep the concrete surface moist
- To allow hydration of cement
- All of the above

Question 2: The time-varying waveform in alternating current (AC) is typically a __________.
- Square wave
- Sine wave
- Sawtooth wave
- Constant value

Question 3: The shear strength of soil is primarily governed by ___________.
- Permeability and porosity
- Cohesion and internal friction angle
- Void ratio and unit weight
- Compaction effort

Question 4: In refrigeration, the refrigerant absorbs heat in the _____________.
- Condenser
- Evaporator
- Compressor
- Expansion valve

Question 5: The process of using trench boxes or other types of supports to prevent soil cave-ins is referred to as __________.
- Hexagonal close-packed (HCP)
- Body-centered cubic (BCC)
- Face-centered cubic (FCC)
- Amorphous

Question 6: Flow is considered turbulent when Reynolds number exceeds approximately _______________.
- 500
- 1000
- 4000
- 10,000

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