Mining Machinery MCQs Questions & Answers | Mining Engineering

Right hand ordinary lay wire rope construction is most useful for

A 1 tonne mine car travelling at a constant speed of 10 km/h collides with a stationary buffer and comes to rest. If the buffer spring stiffness is 200 kN/m, the maximum compression in the spring in mm is

Sillicon percentage in wire ropes . . . . . . . .

All the layers of wires have same pitch or length of lay called . . . . . . . .

The rate at which a machine component oscillates is called

Method of joining two wire ropes permanently without using special fittings or attachments is known as

A direct rope haulage pulls 8 tubs loaded with coal through an incline of length 500 m having an inclination of 1 in 6. Consider the following additional data.
Capacity of tub = 1.0 tonne.
Tare weight of tub = 500 kg
Hauling speed = 9 km per hour
Coefficient of friction between wheel and rail = $$\frac{1}{{60}}$$
Coefficient of friction between rope and drum = $$\frac{1}{{10}}$$
Mass of rope per meter = 1.5 kg
The minimum power required to haul the tubs in kW is

Which of the following centre core looks like an independent wire rope?

The series of iron container of scraper chain conveyor over which the flight with chain moves is known as

It is the ratio between the interruptions to the motion of a car along a straight level track with constant speed to the total weight of car