The consumable electrode is used in
Carbon arc welding
Submerged arc welding
TIG arc welding
MIG arc welding
Correct Answer :
D. MIG arc welding
Related Questions
In a cold chamber die casting machine, only nonferrous alloys with _________ are casted.
Low melting temperature
High melting temperature
Both (A) and (B)
None of these
In arc welding, the electric arc is produced between the work and the electrode by
Voltage
Flow of current
Contact resistance
All of these
Most of the oxyacetylene welding is done with
Neutral flame
Oxidising flame
Carburising flame
All of these
For arc welding
Alternating current with high frequency is used
Alternating current with low frequency is used
Direct current is used
Any one of these
4.Linde welding uses
Neutral flame and rightward technique
Oxidising flame and leftward technique
Neutral flame and leftward technique
Carburising flame and rightward technique
Lap joints are employed on plates having thickness
Less than 3 mm
5 to 10 mm
12.5 mm
Above 25 mm
A moving mandrel is used in
Wire drawing
Tube drawing
Metal cutting
Forging
The cold working of metals is carried out
At the recrystallisation temperature
Below the recrystallisation temperature
Above the recrystallisation temperature
At any temperature
The instrument used to measure external and internal diameter of shafts, thickness of parts and depth of holes, is
Outside micrometer
Inside micrometer
Depth gauge micrometer
Vernier caliper
In order to get uniform thickness of the plate by rolling process, one provides
Camber on the rolls
Offset on the rolls
Hardening of the rolls
Antifriction bearings
The cold chisels are made from
Cast iron
Mild steel
High speed steel
Cast tool steel
Green sand is a mixture of
30% sand and 70% clay
50% sand and 50% clay
70% sand and 30% clay
90% sand and 10% clay
Which one of the following material will require the largest size of riser for the same size of casting?
Aluminium
Cast iron
Steel
Copper
In welding magnesium with TIG arc welding, direct current with _________ is used.
Straight polarity
Reversed polarity
Both (A) and (B)
None of these
Swab is used for
Smoothing and cleaning out depressions in the mould
Cleaning the moulding sand
Moistening the sand around the edge before removing pattern
Reinforcement of sand in the top part of the moulding box
During drawing operation, the states of stress in cup would include
Compressive stress in the flange
Tensile stress in the wall
Both (A) and (B)
None of these
For gas welding, the pressure desired at the welding torch for acetylene is
7 to 103 kN/m²
70 to 280 kN/m²
280 to 560 kN/m²
560 to 840 kN/m²
A two high rolling mill consists of two rolls which rotate
At the same speed and in the same direction
At the same speed but in opposite direction
At different speeds and in the same direction
At different speeds and in the opposite direction
When the molten metal is fed in the cavity of a metallic mould by gravity, the method of casting is known as
Die casting method
Slush casting method
Permanent mould casting method
Centrifugal casting method
In forehand welding, the angle between the welding torch and the work is ________ as compared to backhand welding.
Same
Less
More
None of these
For smoothing and cleaning out depressions in the mould, a __________ is used.
Slick
Lifter
Swab
Gagger
The process used to improve fatigue resistance of the metal by setting up compressive stresses in its surface, is known as
Hot piercing
Extrusion
Cold peening
Cold heading
A casting defect which occurs due to improper venting of sand is known as
Cold shuts
Blow holes
Shift
Swell
The algebraic difference between the maximum limit and the basic size is called
Actual deviation
Upper deviation
Lower deviation
Fundamental deviation
A ring gauge is used to
Check the diameter of shafts or studs
Test the accuracy of holes
Check the clearance between two mating surfaces
All of the above
In forehand welding, the angle between the welding rod and the work is kept as
30°-40°
40°-50°
50°-60°
60°-70°
Cast iron and steel pipes are produced by
Slush casting
Investment casting
True centrifugal casting
Die casting
The acetylene cylinder is usually painted with
Black colour
White colour
Maroon colour
Yellow colour
The binder commonly used in making oil sand, is
Clay type binder
Organic type binder
Inorganic type binder
Any one of these
The algebraic difference between the minimum limit and the basic size is called
Actual deviation
Upper deviation
Lower deviation
Fundamental deviation