Technology Grade 8 Mini Pat Term 3 Answers pdf download:
Technology Grade 8 Mini Pat Term 3 Questions and Answers
What does the headgear of a mine do?
The headgear of a mine, also known as the headframe, is a structural frame above the mine shaft that supports the hoisting equipment used to lower and raise workers, equipment, and ore in and out of the mine.
What happens in the winding house of a mine?
In the winding house of a mine, the winding engine (or hoist) is located, which controls the movement of the lift (cage) and skips up and down the mine shaft. The winding house is essential for safe and efficient transportation within the mine.
Explain what a sheave wheel is and what it does.
A sheave wheel is a large wheel with a grooved rim that guides and supports the hoisting rope used in the mining lift system. It helps in redirecting the rope from the hoist to the shaft, ensuring smooth and efficient operation.
What does a head frame do?
A headframe supports the hoisting equipment used to lift and lower materials, equipment, and personnel in and out of the mine shaft. It also houses the sheave wheels and acts as a support structure for the entire hoisting system.
Why do the legs on a head frame always slope towards the winch?
The legs on a headframe slope towards the winch to ensure structural stability and to better support the weight and tension of the hoisting system. This design helps in distributing the load more evenly and increases the overall strength of the structure.
What do you call the two parts of the lift that goes down a mine?
The two parts of the lift that goes down a mine are called the cage and the skip.
What do these two parts of the lift do?
The cage is used to transport workers and equipment in and out of the mine, while the skip is used to transport ore and other materials from the mine to the surface.