Ramsay Test Technical Aptitude & Knowledge 2 — Questions and Answers
Question 1: In a system of two meshing spur gears, the driver has 12 teeth and the driven gear has 36 teeth. What is the gear ratio?
- 1:3 (Correct answer)
- 3:1
- 1:2
- 2:1
Correct answer: 1:3
The ratio of driver to driven teeth is 12:36, which simplifies to 1:3.
Question 2: When two external spur gears mesh, how do their directions of rotation compare?
- They rotate in opposite directions (Correct answer)
- They rotate in the same direction
- One stops while the other turns
- Both rotate clockwise only
Correct answer: They rotate in opposite directions
Two externally meshing gears always turn in opposite directions.
Question 3: A first-class lever has the fulcrum located where relative to the effort and load?
- Between the effort and the load (Correct answer)
- At the same point as the load
- Beyond the effort
- At the same point as the effort
Correct answer: Between the effort and the load
In a first-class lever the fulcrum sits between the applied effort and the load.
Question 4: Which simple machine is a wheel and axle BEST described as?
- A rotating lever (Correct answer)
- An inclined plane wrapped around a cylinder
- A movable pulley
- A class-three lever only
Correct answer: A rotating lever
A wheel and axle acts as a continuously rotating lever about its center.
Question 5: Increasing the diameter of a pulley driven by a fixed-speed belt will do what to the pulley's rotational speed?
- Decrease it (Correct answer)
- Increase it
- Keep it the same
- Stop it entirely
Correct answer: Decrease it
A larger driven pulley turns slower than a smaller one at the same belt speed.
Question 6: A 100 lb load is lifted using a single movable pulley. Ignoring friction, what effort force is required?
- 50 lb (Correct answer)
- 100 lb
- 200 lb
- 25 lb
Correct answer: 50 lb
A single movable pulley halves the effort, so 50 lb lifts the 100 lb load.
Question 7: In a hydraulic system, pressure applied to a confined fluid is transmitted how?
- Equally in all directions (Correct answer)
- Only downward
- Only toward the pump
- It decreases with distance
Correct answer: Equally in all directions
Pascal's principle states pressure in a confined fluid transmits equally in every direction.
Ramsay Test Technical Aptitude & Knowledge 2
In a system of two meshing spur gears, the driver has 12 teeth and the driven gear has 36 teeth.
What is the gear ratio?