51. Which of the following welding process uses non-consumable electrode?
52. A casting method which produces castings within very close tolerances (± 0.05 mm) and do not require further machining is known as :
53. A forging method in which only a small portion of the part is deformed at any particular time and can be applied only to circular products is called
54. In which of the following non conventional machining process, the material is removed by using abrasive Slurry between the tool and work :
55. Which one of the following is an operation of producing flat surface at an angle to the axis of the cutter?
56. The relationship between the tool life (T) in minutes and cutting speed (V) in m/min is given by : Where n = an exponent depending on tool and work piece and C = constant
57. In n lathe, which one of the following is used to hold hollow work pieces to machine theirexternal surface:
58. If ‘ FC’ is the total fixed cost, 'VC' is the variable cost per unit and ‘SP’ is the selling price per unit, then Brake Even Point (BEP) in terms of sales revenue is equal to:
59. If ‘ D' is the annual demnnd in units, ‘C’ is the order cost and ' H' is the holding cost per unit per year, then the Economic Order Quantity (EOQ) is equal to :
60. Which one of the following layout is suitable for continuous production?
61. A closed system is one in which :
62. In a vapour compression refrigeration system before entering the throttle valve, the refrigerant is in the form of:
63. The efficiency of Carnot cycle is maximum when :
64. In SI system of units. One tonne of refrigeration is taken as equivalent to
65. Two stroke engines as compared to four stroke engines having same output rating and same compression ratio have
66. A closed gas turbine works on
67. The head against which a centrifugal pump has to work is known as
68. The hydraulic efficiency of an impulse turbine is maximum when :
69. The power transmitted by the belt is maximum when the maximum tension in the belt is :
70. Bevel gears are used to transmit rotary motion between two shafts whose axes are :
71. In levelling, the reading is taken on a staff held at a point of known elevat ion of 123.45 m, the staff reading is recorded as 1.875 m. The height of instrument is (According to TS: 1904-1986, the minimum depth of foundation below natural ground surface should be ):
72. Accounding to IS:1904 - 1986 the minimum depth of foundation below natural ground surface should be :
73. Early gain of strength of cement is due to
74. Which of the following is responsible for most, of undesirable properties of concrete?
75. In members where cracking in the tensile zone is harmful either because they are exposed to the effects of weather or continuously exposed to moisture, the limit of maximum cracking width as per IS-456: 2000 is :
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