71. The suction and delivery pressure for a two stage compressor are 1 and 25 atm respectively. The intermediate stage pressure would be around __________ atm.
72. Monazite deposits constitute an important source for the following metal.
73. Phosphorous is added to copper melt to
74. Heating of ferromagnetic materials to a temperature above Curie temperature makes it
75. Particle nature of cathode rays is proved due to the fact that they
76. Pick out the correct statement
77. Which of the following is not the function of a volute casing provided in a centrifugal pump?
78. 'Cryogenics' is concerned with the generation & use of low temperature in the range of
79. Which of the following is not an ore of copper?
80. During solid state sintering of powders, the following mechanism can be active.
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