Chemical Engineering PE Exam Calculator Hacks: Time-Saving
Shortcuts for Complex Problems
The Chemical engineering PE exam is a race against time. Every second counts when you are
solving those tricky thermodynamics problems or working through reactor design calculations.
Your calculator is not just a tool—it is your sidekick in this high-stakes challenge.
Most test-takers do not use their calculators to their full potential. They punch in numbers, get
results, and move on. But there is a whole world of shortcuts hiding in that little device!
Store Common Constants
Did you know your calculator can remember things for you? During the PE Chemical exam, you
will repeatedly use constants like the ideal gas constant (R), standard gravity (g), or conversion
factors.
Program these into your calculator's memory before the exam. On most scientific calculators:
• Press [STO] followed by a number (1-9)
• To recall, press [RCL] and the same number
This tiny hack can save you 30+ seconds per problem.
Use Built-in Functions
Many examinees solve equations step-by-step when their calculators can do it in one go. For
the PE Chemical engineering exam, learn these functions:
• Polynomial solvers for cubic equations
• Matrix operations for multiple equations
• Statistical functions for data analysis questions
These built-in capabilities can chop minutes off your solving time. Why do manually what your
calculator can do automatically?
Create Custom Programs
This is where the magic happens. Modern calculators allow you to create mini-programs for
specific calculations.
For the chemical engineering PE exam, consider programming:
• Vapor-liquid equilibrium calculations
• Pipe flow pressure drop estimations
• Heat exchanger analysis shortcuts
Calculation Chaining
Don't clear your calculator after every step! Use the answer in your next calculation by pressing
[ANS] or just starting a new operation.
Example: When solving multi-step chemical engineering PE exam problems, like energy
balances with reaction, keep the chain going. This reduces entry errors and saves precious time.
Check Your Work Efficiently
Verification is crucial, but it does not need to be time-consuming. Use your calculator's memory
to store intermediate results, then quickly check critical values.
For multiple-choice questions, work backward. Enter the answer options and see which one
satisfies the conditions. This reverse-engineering approach can be a lifesaver when you are
running out of time.
Practice Makes Perfect
These hacks won't help if you are fumbling with buttons during the exam. Practice these
techniques while studying. Get so comfortable with your calculator that you could use it
blindfolded.
Concluding Thoughts
The chemical engineering PE exam tests your engineering knowledge, but it also tests your
ability to solve problems efficiently. Your calculator strategy can be the difference between
finishing on time and leaving questions unanswered.
Are you looking for expert-led PE Chemical exam courses? Look no further than School of PE.
Choose from flexible course modes and prepare for the exam at your own pace. In addition to
lecture videos and top-notch study materials, School of PE offers free calculator training to help
you master the calculator functions.
For more details, visit: https://www.schoolofpe.com/pe-chemical
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