FREE Ramsay Mechanical Aptitude Questions and Answers
The hydraulic crane seen in the illustration is what type of a lever?
The correct answer is third class lever.
How many rotations does the wheel M make after K has made four complete rotations?
If wheel K completes 4 revolutions, it means that it makes four full rotations. For every one rotation of wheel K, wheel M makes one full rotation. Therefore, the number of revolutions of wheel M is directly proportional to the number of revolutions of wheel K, and the wheel M will make 1 revolution when wheel K completes 4 revolutions.
Which process cannot generate magnets?
To create a magnet, you need a method that can align the magnetic domains or induce a magnetic field in the material, which the painting method does not provide.
A full ballistic trajectory's vertical component is divided in half (when falling down), and it appears to be:
When a full ballistic trajectory's vertical component (during the falling phase) is divided in half, the resulting motion appears to be "uniformly accelerated motion."
How many times and in which direction does the tiny wheel (B) rotate if the giant wheel (A) rotates three times in a clockwise manner?
The giant wheel (A) rotates three times in a clockwise manner. As a result, the tiny wheel (B) rotates six times in the same clockwise direction. This relationship is due to the difference in their radii, with the smaller wheel covering a shorter distance in one full rotation compared to the larger wheel.
When a bulb in a set up in parallel breaks, the other bulbs:
When a bulb in a setup connected in parallel breaks, the other bulbs continue to operate regularly.
To stop a valuable circuit component from burning due to the increased current, we must place a ____ before it.
A fuse is a safety device used in electrical circuits to protect components from overcurrent or short circuits. It consists of a metal wire or strip that melts and breaks the circuit when an excessive current passes through it.
We utilize ____ to determine a certain gas pressure.
A manometer is an instrument used to measure the pressure of a gas, liquid, or vapor in a closed container or a pipeline.
A screw with a body diameter of 6mm and a pitch of 1mm must be turned with a 12N force. Determine the driving force influencing the screw. Write the solution in 3 S.F.
First, we calculate the mechanical advantage (MA):
Mechanical Advantage (MA) = (π * Body Diameter) / Pitch
MA = (π * 6 mm) / 1 mm ≈ 18.85
Next, we can determine the driving force using the formula:
Driving Force = Applied Force × Mechanical Advantage
Driving Force = 12 N × 18.85 ≈ 226.2 N
Rounding this result to 3 significant figures, the driving force influencing the screw is approximately 226 N
Which of the following statements about magnets is TRUE?
In a magnetic field, magnetic field lines are used to visualize and represent the direction and strength of the magnetic field. These lines form closed loops, meaning they have both a starting point and an ending point.
In a circuit, the electrons travel from an area in which there are ____ electrons to an area in which there are ____ electrons.
Electrons move from areas with an excess of electrons (more) to areas with a deficit of electrons (less) within an electrical circuit.
What word is not associated with gears?
The word "rack" is not associated with gears. In mechanical engineering and gear systems, a "rack" refers to a straight or flat toothed bar or rod that meshes with a gear.
Which claims regarding circular motion is FALSE?
Linear motion and circular motion are two distinct types of motion and are not directly related in the way that linear motion is a special case of circular motion.
Typically, belts are constructed of ____ friction.
Typically, belts are constructed of materials that increase friction. Belts are designed to grip the pulleys or wheels they are in contact with to ensure efficient power transmission and prevent slipping.
A force of 1200 N holds a load of 300 N. What is the length of the lever in meters if the force is exerted at a location that is 25 cm from the fulcrum?
Force × Distance from fulcrum = Load × Distance from fulcrum
1200 N × 0.25 m = 300 N × L
L = (1200 N × 0.25 m) / 300 N
L = 300 / 300
L = 1 meter
Which of the following statements about springs is NOT true?
Springs are not considered a kind of simple machine. Simple machines are basic mechanical devices that provide mechanical advantage to perform work with less effort.