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

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Are You Smarter than an Undergraduate? July 2025PEimpact KH2024-12-04T12:38:35-06:00

Are you smarter than an undergraduate

PDHengineer's monthly quiz for engineers

Celebrate American ingenuity and your engineering skills. Take this month’s quiz and declare your independence from ignorance.

Question 1: _______________ are nonlinear loads that contribute to harmonic problems in AC electrical systems.
- Computer power supplies
- Variable Frequency Drives (VFDs)
- LED lights
- All of the above

Question 2: The first "C" in CPVC pipe stands for __________.
- Chlorinated
- Commercial-grade
- Creep-resistant
- Coated

Question 3: Used to calculate the viscosity of a fluid, ___________ gives the equation for the frictional force (or drag force) exerted on spherical objects with very small Reynolds numbers in a viscous fluid.
- Stokes' Law
- Moore's Law
- Bernoulli's Law
- Pascal's Law

Question 4: In a compression refrigeration system, the heat removal from the air stream (where the actual cooling happens) occurs in the ____________.
- Compressor
- Condenser
- Expansion valve
- Evaporator

Question 5: The shear strength of soil is expressed in terms of __________.
- Adhesion, unit weight and friction angle
- Cohesion, normal stress and unit weight
- Cohesion, normal stress and friction angle
- None of the above

Question 6: Modulus of elasticity is also called ____________.
- Young's Modulus
- Modulus of eccentricity
- Coefficient of linear thermal expansion
- Polar moment of inertia

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