Preparing for an electrical exam that includes multiple choice questions on theory and wondering how to effectively prepare to answer multiple-choice theory related questions on your electrical exam? Here are some tips that can help!
Review basic concepts and principles of electricity.
Understanding Ohm’s law, Kirchhoff’s law, as well as how to calculate power, energy, resistance, voltage, and current is vitally important. Preparing to answer these types of questions will greatly increase your likelihood of passing your electrical exam on the first try.
Practice solving problems using formulas and calculations.
Learn how to manipulate equations and convert between units of measure. You should also be familiar with common electrical symbols and diagrams.
Read questions carefully and look for keywords prior to attempting to answer a question.
If the question asks for the “equivalent resistance” of a circuit, you should know how to combine resistors in series and parallel. If the question asks for the “voltage drop” across a component, you should know how to use the correct Ohm’s Law formula to answer the question.
Eliminate the wrong answers by using logic and common sense.
If an exam question asks for the current in a circuit and one of the options is a negative number, you can rule that answer out because current is always positive. If the question asks for the power dissipated by a resistor and one of the options is zero, you can rule that answer choice out because power is always positive as well.
Check your answers by plugging them back into the formulas or equations.
If your answer makes sense, it is likely correct. If your answer is unreasonable or contradicts a theory related principal in, it is likely incorrect..
Manage your time wisely, don’t spend too much time on one question.
If you are unsure of how to answer a question, rely on deductive reasoning, choose what you feel is the best possible answer and move on. Don’t spend too much time on questions that can prevent you from answering other questions that you could have answered correctly if you had not run out of time.
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