Mining Machinery MCQ

Test your knowledge with important Mining Machinery MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Mining Machinery MCQs at Bissoy

• 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
  ক

  Co-efficient of utilization of space

  খ

  Co-efficient of resistance

  গ

  Co-efficient of adhesion

  ঘ

  Co-efficient of car stability
• The series of iron container of scraper chain conveyor over which the flight with chain moves is known as
  ক

  Driving wheel

  খ

  Donga or pan

  গ

  Sprocket

  ঘ

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

  SSC

  খ

  Fibre core

  গ

  IWRC

  ঘ

  Vegetable core
• 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.<br>Capacity of tub = 1.0 tonne.<br>Tare weight of tub = 500 kg<br>Hauling speed = 9 km per hour<br>Coefficient of friction between wheel and rail = $$\frac{1}{{60}}$$<br>Coefficient of friction between rope and drum = $$\frac{1}{{10}}$$<br>Mass of rope per meter = 1.5 kg<br>The minimum power required to haul the tubs in kW is
  ক

  345.50

  খ

  348.60

  গ

  350.10

  ঘ

  365.50

  ঙ

  58.86
• Method of joining two wire ropes permanently without using special fittings or attachments is known as
  ক

  rope splicing

  খ

  laying of wires

  গ

  vulcanizing

  ঘ

  pre-stressing
• The rate at which a machine component oscillates is called
  ক

  speed of machine

  খ

  vibration frequency

  গ

  rms frequency

  ঘ

  indicator of machine condition
• All the layers of wires have same pitch or length of lay called . . . . . . . .
  ক

  Ordinary lay

  খ

  Langs lay

  গ

  Parallel lay

  ঘ

  Right hand lay
• Sillicon percentage in wire ropes . . . . . . . .
  ক

  0.11

  খ

  0.3

  গ

  0.4

  ঘ

  0.5
• 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
  ক

  49

  খ

  98

  গ

  196

  ঘ

  247
• Right hand ordinary lay wire rope construction is most useful for
  ক

  Winding

  খ

  Haulage

  গ

  Crane

  ঘ

  Bucket supporting rope
• The ropes used for winding; haulage, coal cutting are the examples of . . . . . . . .
  ক

  Non stranded

  খ

  Stranded

  গ

  Standing

  ঘ

  Running
• Preshaping the wires and strands in to exact helical positions, they assumed in the finished shape called . . . . . . . .
  ক

  Equal lay

  খ

  Left hand lay

  গ

  Preformed rope

  ঘ

  All
• For AFC open-bottom pans are preferable to closed-bottom pans because
  ক

  These don't sink into soft floor being of lighter weight

  খ

  The return chain cannot get jammed due to accumulation of coal particles

  গ

  These can be easily inspected and maintained

  ঘ

  These make less noise
• The wire rope which offers better wearing surface and more resistant to bending fatigue called . . . . . . . .
  ক

  Langs lay

  খ

  Ordinary lay

  গ

  Right hand lay

  ঘ

  Locked coil
• Ropes used for drag line.
  ক

  Langs lay

  খ

  Locked coil

  গ

  Regular lay

  ঘ

  Flattend strand
• Which metal is used for the purpose of capping of winding ropes?
  ক

  Cu

  খ

  Zn

  গ

  Fe

  ঘ

  Ag
• In coned socket type capel the metal poured is . . . . . . . .
  ক

  Gunmetal

  খ

  Brass

  গ

  White metal

  ঘ

  Babbit metal
• Which of the following can be used safely right upto the face of coal mine
  ক

  Battery loco

  খ

  Diesel loco

  গ

  Trolley wire loco

  ঘ

  All of these
• The mass of a rope depends upon the . . . . . . . . of steel.
  ক

  Quantity

  খ

  Quality

  গ

  Abrasive

  ঘ

  Fatigue
• Which of the indigenous firm do manufacture SDL&amp; LHD in India?
  ক

  Joy mining machinery company

  খ

  Atlas Copco

  গ

  Eimco Elecon

  ঘ

  Tractors India limited
• Tail rope haulage is mainly used as
  ক

  Main rope haulage

  খ

  Haulage for waste disposal

  গ

  As a buffer haulage inside the district

  ঘ

  To replace endless haulage
• Which of the following locomotive is not recommended to be used where the coal is liable to spontaneous heating?
  ক

  Battery loco

  খ

  Diesel loco

  গ

  Trolley wire loco

  ঘ

  Compressed air loco
• Water will not be delivered by a centrifugal pump due to
  ক

  Lack of priming

  খ

  Too low discharge head

  গ

  Wrong direction of rotation

  ঘ

  Partial obstruction at discharge
• The above figure shows the duty cycle of hoist system. The system is
  ক

  Cylindrical drum with tail rope

  খ

  By-cylindro conical drum

  গ

  Ground mounted friction sheave

  ঘ

  Cylindrical drum without tail rope
• Which of the following device absorbs shock of the vibrations resulting form misalignment?
  ক

  Clutch

  খ

  Gear

  গ

  Flexible coupling

  ঘ

  Motor
• A belt conveyor conveys material of average cross-sectional area of 0.09 m². of bulk density 1.5 tonnes/m³, at a speed 2 m/s. The carrying capacity of the belt in tonne/hr is
  ক

  972

  খ

  864

  গ

  732

  ঘ

  643
• A wire rope, round stranded with fibre core, has a diameter of 2.54 cm. What is the mass of the rope per m length if the value of the constant k is 0.36?
  ক

  2.33

  খ

  2.36

  গ

  2.87

  ঘ

  3.21
• A two tonne mine car is released from the top of an incline at a height of 3m as shown in the figure. The mine car travels 45m along the inclined track and another 85m along the horizontal track before coming to rest. The specific rolling resistance of the, car in N/tonne is<br><img src="/images/question-image/mining-engineering/mining-machinery/1682418351-M2-6-63-32.PNG" title="Mining Machinery mcq question image" alt="Mining Machinery mcq question image">
  ক

  0.226

  খ

  0.326

  গ

  0.526

  ঘ

  0.126
• Clifton pulley is used in
  ক

  Direct rope haulage

  খ

  Endless rope haulage

  গ

  Gravity is haulage

  ঘ

  Main and tail rope haulage
• Which of the following factor has little or no effect on the development of head?
  ক

  Diameter and speed of impeller

  খ

  Curvature of impeller

  গ

  Design of diffuser

  ঘ

  Distance between pump motor and delivery point