31. Which of the following factor has little or no effect on the development of head?
32. Clifton pulley is used in
33. 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
34. 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?
35. 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
36. Which of the following device absorbs shock of the vibrations resulting form misalignment?
37. The above figure shows the duty cycle of hoist system. The system is
38. Water will not be delivered by a centrifugal pump due to
39. Which of the following locomotive is not recommended to be used where the coal is liable to spontaneous heating?
40. Tail rope haulage is mainly used as
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