Friday, January 6, 2023

OBJECTIVE –QUESTIONS ON TRD (PART - 2 )

OBJECTIVE –QUESTIONS ON TRD (PART - 2 )

OBJECTIVE –QUESTIONS ON TRD (PART - 2 )

51. Distance between track center and mast face is known as ----------------------

52. Implantation (min.) of opposite gantry mast is ------------------------

53. Clear span of N type portal is ----------------------------

54. Clear span of O type portal is ----------------------------

55. Clear span of R type portal is ----------------------------

56.  State the size of BFB 6x6 in mm ------------------------

57.  Normally the length of drop arm is ---------------------

58.  The boom of TTC mast is available in ----------------------------- mts. Lengths

59.   Implantation of obligatory mast is -------------------------- mts.

60.  Maximum standard span is ------------------  mts.

61. Minimum implantation at Platform is -------------- mts.

62.Clear span of TTC mast?

63.Leaning mast is painted with ____________ colour strap as identification mark.

64.Mast supporting OHE of different elementary sections should be painted with ------- colour strap as identification mark.

65.Implantation is also known as setting distance. (True/False)

66.  A mast inclined instead of being normal to the ground level is called as ---------- mast.

67.  What is used to declare a mast as leaning mast?

a) Measuring tape/Plumb bob

b) Plumb bob/Binocular

c) Binocular/Measuring tape

d) Sprit level.

68. Mast leaning more than --------  cm is not permissible.

69. The term Reverse Deflection is associated with ----------------

70. Reverse Deflection applicable is  ---- to ------- cm.

71.  Minimum implantation is -----------   mts

72. Normal implantation as per new standards is ----------------------  mts.

73. Minimum span length is ---------------------- mts.

74. The difference of two consecutive span lengths should not be more than-----mts.

75. Tolerance applicable in mast implantation is ---------------------mm.

76. Spans that are multiples of ------ mts. Are known as standard spans.

77. Spans that are not multiple of ------mts. Are known as Non standard span.

78. 54 mts span length is a non-standard span. (True/False)

79. N type portal is suitable for OHE of maximum ------- No. tracks.

80. O type portal is suitable for OHE of maximum --------  No. tracks.

81. R type portal is suitable for OHE of maximum -------- No. tracks.

82. P type portal may be used in place of –

a) N portal

b) O portal

c) R portal

d) BFB portal.

83. G type portal may be used in place of –

a) N portal

b) O portal

c) R portal

d) BFB portal.

84. Size of up-right for N type portal is –

a) 450x450

b) 550x550

c) 600x600

d)400x400

85. Size of up-right for O type portal is –

a) 450x450

b) 550x550

c) 600x600

d)400x400

86. Size of up-right for R type portal is –

a) 450x450

b) 550x550

c) 600x600

d)400x400

87. Size of up-right for P type portal is –

a) 450x450

b) 550x550

c) 600x600

d)300x300

88. Size of up-right for G type portal is –

a) 450x450

b) 550x550

c) 600x600

d)250x400

89. Standard BFB mast size ----------------------------

90. RSJ mast size -----------------------------------------

91.What are the different sizes of B series mast ?(any three)

92.What is the size of B-150 mast?

93. Normally OHE masts are ------------ mts. Long.

94. ------------  mm portion of OHE mast must be embedded in foundation block.

95.In case of fabricated mast channel width should be parallel to track.(True/False)

96.Welded surface of fabricated mast shall remain perpendicular to track. (True/False)

97.In case of BFB/RSJ mast either of the surfaces can be set parallel or perpendicular to the track.(True/False)

98.PSC mast means mast made up of Concrete. (True/False)

99. Minimum permissible implantation on Outside curve is ------------- mts.

100. Minimum permissible implantation on Inside curve is ------------- mts.


                                                     ANSWER

51.Implantation.              52.  4.30 mts                   53.10-20 mts.                54.20-30 mts

55.30-40 mts                   56.152 X 152                  57.3 mts.                       58.5 & 8 mts.

59.3.00 mts.                     60.72                               61.4.75                   

 62.Clear span term is not used for TCC mast.       63.Yellow                    64.Red

65.True                           66.Leaning mast.             67.a                             68.15 cm

69.Mast Erection                70. 5 to 8 cm                71.2.36 mts                 72.2.80 mts. 

73.27 mts                           74.18                             75.30                                     76.4.5     

77.4.5                                  78.False.                    79.4                 80.6                81.8

82.a                                 83.b                                84.a                  85.b             86.c

87.d                               88.d                                89.6” x 6”         90.6” x 8”     91.B125, B150 , B175

92.150X300 mm                    93.9.3 , 9.5 mts.     94.1350 mm       95.True.       96.True

97.False                    98.True                    99.2.50           100.2.90

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