JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III MINE MECHANIZATION - II Previous Question Paper (January/February - 2023 - R16)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
What is Koepe winding?
Answer
Koepe winding, also known as friction winding, is a hoisting system where the winding rope is driven by a single friction pulley or drum rather than being coiled around it. The system relies on the friction generated between the rope and the pulley tread to transmit the driving force, with the cage and counterweight suspended from opposite ends of the rope to maintain balance.
What are the applications of drum Winder?
Answer
Drum winders are primarily used in mining operations for the vertical transport of personnel, materials, and minerals. Their key applications include:
- Shaft Sinking: They are extensively used during the initial development phase of a mine to hoist excavated rock and lower equipment or workers into the shaft.
- Production Hoisting: In mines with moderate depths, drum winders are employed for continuous hoisting of coal or ore from underground levels to the surface using skips.
- Service Hoisting: They are used for the routine transport of personnel, heavy machinery, timber, and other essential supplies between the surface and underground workings.
What are depth indicator?
Answer
Sign in to view the complete answer paper.
Describe the working of over wind preventers.
Answer
Sign in to view the complete answer paper.
What can SDL be used for?
Answer
Sign in to view the complete answer paper.
What is a LHD?
Answer
Sign in to view the complete answer paper.
What is the function of power loader?
Answer
Sign in to view the complete answer paper.
What are the functions of pumps?
Answer
Sign in to view the complete answer paper.
What are the applications of dumpers?
Answer
Sign in to view the complete answer paper.
What are the applications of dragline?
Answer
Sign in to view the complete answer paper.
Part B
Explain the following terms:
Answer
Sign in to view the complete answer paper.
Answer
Sign in to view the complete answer paper.
Answer
Sign in to view the complete answer paper.
Answer
Sign in to view the complete answer paper.
Answer
Sign in to view the complete answer paper.
Explain construction of any two types of Winding Drum.
Answer
Sign in to view the complete answer paper.
Explain Mechanical and electrical braking systems with neat sketches.
Answer
Sign in to view the complete answer paper.
Explain the construction and operation of LHD.
Answer
Sign in to view the complete answer paper.
Explain the operation and applications of Shearers.
Answer
Sign in to view the complete answer paper.
Explain the operation and applications of Shuttle cars.
Answer
Sign in to view the complete answer paper.
Explain the construction and operation of any two types of pumps.
Answer
Sign in to view the complete answer paper.
Explain the construction of blast hole drill.
Answer
Sign in to view the complete answer paper.
Explain the construction and operation of Bucket Wheel Excavator.
Answer
Sign in to view the complete answer paper.