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

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Are You Smarter than an Undergraduate? August 2026lemleonardia99p2026-02-09T10:42:15-06:00

Are you smarter than an undergraduate

PDHengineer's monthly quiz for engineers

Because Concrete Isn’t the Only Option. Explore the weird, the wobbly, and the wonderfully questionable materials of engineering lore.

Question 1: In a bolted joint, preload is applied to _______________.
- Reduce stress concentration
- Prevent joint loosening and improve load distribution
- Increase tensile strength of bolt
- Reduce bolt diameter

Question 2: The Charpy V-notch test measures ____________.
- Hardness
- Toughness (impact resistance)
- Yield strength
- Elastic modulus

Question 3: In HVAC, which component rejects heat from the refrigerant to the surroundings?
- Evaporator
- Compressor
- Condenser
- Blower

Question 4: Power factor in AC circuits is defined as ____________.
- Current ÷ Voltage
- Cosine of the phase angle between voltage and current
- Resistance ÷ Reactance
- Active power ÷ Apparent resistance

Question 5: The Froude number in open channel flow represents the ratio of __________.
- Shear stress to velocity
- Inertial forces to gravitational forces
- Pressure head to velocity head
- Discharge to area

Question 6: Slenderness ratio is defined as ______________.
- L/d
- Effective length ÷ Radius of gyration
- Length ÷ Elastic modulus
- Area ÷ Moment of inertia

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