Practice Test: Mechanical Comprehension
Key Takeaways
This 19-question mixed-topic practice set provides a timed mechanical comprehension drill; its length is a practice choice.
Recognize the physics concept first, then apply the formula — do not spend time figuring out which formula to use.
Many MCT questions can be answered through logic and elimination without full calculations.
Diagram-based questions (gears, pulleys, levers) are the most common — practice interpreting mechanical images.
If you are running low on time, prioritize questions you can answer quickly and guess on complex calculations.
For this practice drill, allow 10 minutes for 19 questions. This is a suggested training window. Work quickly on concept recognition.
How to Use This Practice Set
Treat these questions as an active-recall checkpoint for Practice Test: Mechanical Comprehension, not as a reading assignment. Answer the full set before looking at explanations, then mark each miss by skill area, rule, or service name. For every wrong answer, write the reason the correct option wins and why one tempting distractor fails. That habit matters because real exam questions often test the same concept with different wording. If you miss several questions from the same domain, pause and reread that chapter before continuing.
A strong final review loop is: timed attempt, explanation review, targeted reread, then a second attempt after a short break.
Review Routine
After you finish this set, make a three-column log: topic, missed rule, and the clue you should have noticed. Retake only missed questions the next day, then mix them with new questions so you do not memorize order. For calculations or scenario rules, say the first step aloud before choosing an option; that prevents rushing into a familiar but wrong answer.
For pulley and lever problems, identify the load, effort, and pivot or supporting rope segments before using a ratio. For electrical problems, label series and parallel connections first; confusing those arrangements changes the resistance calculation and can make a plausible distractor look correct.
A 10 kg box is pushed across a floor with a net force of 20 N. What is the acceleration?
0.5 m/s²
2 m/s²
200 m/s²
10 m/s²
A block and tackle system has 5 rope segments supporting the load. To lift a 250 N load, what effort is needed?
50 N
125 N
250 N
1,250 N
Two gears mesh: Gear A has 24 teeth and turns at 200 RPM. Gear B has 12 teeth. What is Gear B's speed?
100 RPM
200 RPM
400 RPM
600 RPM
A car traveling at 30 m/s brakes to a stop in 6 seconds. What is the deceleration?
-5 m/s²
-180 m/s²
-36 m/s²
-0.2 m/s²
If the area of a hydraulic piston doubles, and pressure stays constant, the force on the piston:
Halves
Stays the same
Doubles
Quadruples
A 50 kg box sits on a frictionless inclined plane at 30°. What force parallel to the ramp does gravity exert? (sin 30° = 0.5, g = 10 m/s²)
50 N
100 N
250 N
500 N
Three resistors of 6Ω each are connected in parallel. What is the total resistance?
18 Ω
6 Ω
3 Ω
2 Ω
A lever has a 300 N load 2 m from the fulcrum. If the effort arm is 6 m, what effort is needed?
50 N
100 N
150 N
900 N
An object with density 1,200 kg/m³ is placed in water (1,000 kg/m³). What happens?
It floats with 20% above water
It floats with 80% submerged
It sinks
It floats at the surface
A 24V battery is connected to two 6Ω resistors in series. What is the current?
4 A
2 A
8 A
1 A
If a ball's speed triples, its kinetic energy becomes:
3 times as much
6 times as much
9 times as much
27 times as much
Four meshing gears are arranged in a line: A → B → C → D. If A rotates clockwise, which direction does D rotate?
Clockwise
Counterclockwise
It does not rotate
Cannot be determined
An engine does 6,000 J of work in 3 seconds. What is its power output?
2,000 W
18,000 W
6,003 W
500 W
According to Bernoulli's Principle, what happens to air pressure above an airplane wing compared to below?
It is higher above
It is lower above
It is equal above and below
It depends on the plane's altitude
A spring with k = 200 N/m is compressed 0.1 m. What is the elastic potential energy stored?
1 J
2 J
10 J
20 J
Heat travels from the Sun to the Earth primarily by:
Conduction
Convection
Radiation
Insulation
A ramp is 8 meters long and 2 meters high. What force is needed to push a 400 N box up the ramp (ignoring friction)?
50 N
100 N
200 N
400 N
A step-down transformer has 1,000 primary turns and 100 secondary turns. If input voltage is 240V, what is the output?
24 V
2,400 V
24,000 V
120 V
A motor belt connects a 20 cm pulley to a 5 cm pulley. If the larger pulley turns at 100 RPM, how fast does the small one turn?
25 RPM
100 RPM
400 RPM
500 RPM
Sections you finish are checked off in the contents.