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Are You Smarter than an Undergraduate? April 2026

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Are You Smarter than an Undergraduate? April 2026

Are You Smarter than an Undergraduate? April 2026KHudspeth2026-10-13T15:39:42-05:00

Are you smarter than an undergraduate

Measure twice. See if you can avoid the unit mistakes that turned history into a lesson.

PDHengineer's monthly quiz for engineers

Question 1: The phase angle between voltage and current in a purely resistive AC circuit is _______.

90°

-90°

0°

45°

Question 2: In HVAC design, the psychrometric chart is used to determine ___________.

Solar heat gain

Air properties including humidity and enthalpy

Fan horsepower

Coil surface area

Question 3: The heat-affected zone (HAZ) is associated with ___________.

Casting

Forging

Welding

Extrusion

Question 4: Which pump type is commonly used for high-flow, low-head applications?

Gear pump

Centrifugal pump

Piston pump

Diaphragm pump

Question 5: Fourier’s law relates to ____________.

Convection

Radiation

Conduction

Work

Question 6: In Manning’s equation, the symbol "n" represents ___________.

Channel slope

Roughness coefficient

Velocity of flow

Wetted perimeter

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