63) Constantan is an alloy of.......... and ...........

64) In Cupola furnace.............is produced

65) Presence of Sulphur in steel can cause............

66) Three closed container of same size contains of H2O. Container A is at -10 degree Celsius, container B is at 40 degree Celsius and container C is at 110 degree Celsius. Which of the container has highest value of Entropy?
#GATE 2022

67) Which of the following property is an Extensive property of a system?

68) Which of the following Oxygen to Acetylene ratio represents the Oxidising flame in a gas welding process?

69) Which of the following allowance is not given to a pattern in Foundry?

70) Brinell, Vickers and Rockwell Hardness Test are types of which type of Hardness measurement?

71) At room temperature in a 0.45 wt% carbon steel what are the microconstituents present?

73) Which of the following is not a physical region or comoponents of a Blast Furnace in Iron Making?

74) Which of the foolowing elements in steel is not a ferrite stabilizer?

75) During Roasting of Sulphide Ore which diagram is most helpful?

76) A definite upper and lower yiled point are found in the stress-strain cuve of which of the following material?

77) Related to solidification which of the following statement is TRUE? #GATE 2022

78) Which of the following metal working operation should be carried out to produce collapsible toothpaste tubes? #GATE 2022

79) Which of the following flame in oxy-acetylene gas welding is most suitable for welding of Stainless Steel? #GATE 2022

80) A steel rod with 10 mm diameter is subjected to tensile load. At 10kN the rod shows a permanent elogation of 0.2%. What is the value of true yiled stress (in Mpa) at this point? #GATE 2022

81) The Gibbs Phase Rule for a condensed system is............

82)Which of the following Invariant reaction is not found in Iron-Cementite phase diagram?

83) In Ellingham Diagram some the metal oxide line changes it's slope because of..............