Vikram Sarabhai Space Center Forger & Heat Treater Paper 2015
Hot set is used on a hot metal for
(a) cutting
(b) Flattening
(c) Upsetting
(d) Jumping
Tongs are made up of
(a) High carbon steel
(b) Mild steel
(c) High speed steel
(d) Cast iron
Suitable color for forging of mild steel is
(a) Bright Yellow
(b) Dull Red
(c) Medium Red
(d) Black
Which of the following is not an advantage of forging
(a) Welding of metals
(b) Structure refinement
(c) Accuracy of job
(c) Oxidation
Sensor used to measure the temperature inside an electric furnance
(a) Thermometer
(b) Thermocouple
(c) Thermostat
(d) Temperature controller
Charcoal is made from wood in presence of
(a) Oxygen
(b) Nitrogen
(c) Hydrogen
(d) None of the above
The nozzle pointing out into the centre of the hearth to direct stream of air is known as
(a) Hood
(b) Tuyere
(c) Flue
(d) Fire box
What is the use of punch on a metal part which is at forging heat?
(a) Marking
(b) Edge cutting
(c) Making projections
(d) Making holes
Hardie is used for
(a) Enlarging holes
(b) Cutting
(c) Upsetting
(d) Flattening
Which of the following is a mechanical property?
(a) Conductivity
(b) Density
(c) Ductility
(d) Oxidation
Scale pit is a defect of forging due to
(a) Non-alignment of dies
(b) Squeezing of scales
(c) Over heating
(d) Rapid plastic flow
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