Fluids, Pressure, Energy, Torque, and Predicting Physical Effects
Mechanical practice also tests pressure, fluids, energy, torque, equilibrium, and predicting what will happen in a physical system.
How to study for the SIFT
Use the seven SIFT subtests as your map: build fast visual accuracy, then rotate aviation knowledge, spatial orientation, reading, math, and mechanical reasoning.
Core concepts
Concept 1
Fluids, Pressure, Energy, Torque, and Predicting Physical Effects questions reward the answer that follows the official source, the professional role, and the stated facts.
Exam cue: Identify the candidate role, client or public risk, source rule, calculation, or process step being tested.
Concept 2
The strongest answer identifies the rule, safety concern, ethical duty, calculation, client factor, or process step before acting.
Exam cue: Check whether the fact pattern is using a national standard, jurisdiction rule, handbook policy, or scenario-specific instruction.
Concept 3
Eliminate answers that ignore requirements, skip documentation, overreach the role, or treat convenience as the standard.
Exam cue: Choose the compliant and professionally scoped answer before the convenient or familiar answer.
Risk pitfalls and guardrails
Treating related standards as interchangeable without checking the source.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Skipping screening, documentation, authorization, sanitation, recordkeeping, or other required procedure.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Choosing an answer that protects convenience instead of client safety, public protection, or the stated professional duty.
Guardrail: Avoid answers that rely only on habit, ignore the stated source, skip safety or compliance steps, or choose convenience over the professional standard.
Memory anchors
Pressure
Pressure is force distributed over area.
Fluid
A fluid is a liquid or gas that flows.
Energy
Energy is the capacity to do work or cause change.
Work
Work occurs when force moves an object through distance.
Torque
Torque is rotational force around an axis.
Equilibrium
Equilibrium occurs when forces or torques are balanced.
Center Of Gravity
Center of gravity is the point where an object's weight effectively acts.
Predict Effect
Predicting effect means identifying how a change in force, distance, pressure, or motion changes the system.
Pascal Principle
Pressure applied to a confined fluid is transmitted through the fluid.
Archimedes Principle
Buoyant force equals the weight of fluid displaced.
Continuity
For steady incompressible flow, speed increases where pipe area decreases.
Power
Power is work divided by the time required to do it.
Ohm Law
Current equals voltage divided by resistance.
Series and Parallel
Series components share current; parallel branches share voltage.
Checkpoint rule
Do the check-up only after you can summarize each concept in one sentence and identify one dangerous pitfall from memory.
Knowledge Check (after reading)
Short check-up to confirm understanding of this module.
Check-up Questions
A hydraulic input piston has an area of 2 cm² and receives a 50-newton force. What force acts on an output piston of area 10 cm², ignoring losses?
In an ideal hydraulic system, a small piston moves 20 cm while a piston with four times the area rises. How far does the large piston move?
Answer all questions to submit.
Next step personalized recommendations
Continue learning
Move forward only after this module is stable.
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