The oxygen cylinder is usually painted with
Black colour
White colour
Maroon colour
Yellow colour
Correct Answer :
A. Black colour
Related Questions
When more volume of acetylene and less volume of oxygen is supplied, then a ________ flame is obtained.
Neutral
Oxidising
Carburising
None of these
In a unilateral system of tolerance, the tolerance is allowed on
One side of the actual size
One side of the nominal size
Both sides of the actual size
Both sides of the nominal size
The operation of producing cup shaped parts from flat sheet metal blanks by bending and plastic flow of metal, is known as
Drawing
Squeezing
Coining
Planishing
For smoothing and cleaning out depressions in the mould, a __________ is used.
Slick
Lifter
Swab
Gagger
The process of decreasing the cross-section of a bar and increasing its length, is called
Drawing down
Upsetting
Spinning
Peening
In a simple die
Two or more operations are performed simultaneously at the single stroke of the ram
Two or more cutting operations are performed at one station of the press in every stroke of the ram
Both cutting and non-cutting operations are performed at one station of the press in every stroke of the ram
None of the above
A zinc diffusion process is called
Galvanising
Anodising
Parkerising
Sherardizing
The property of sand due to which it evolves a great amount of steam and other gases is called
Collapsibility
Permeability
Cohesiveness
Adhesiveness
The binder commonly used in making oil sand, is
Clay type binder
Organic type binder
Inorganic type binder
Any one of these
A hacksaw blade is specified by its
Length
Material
Width
Number of teeth
In sheet metal blanking, shear is provided on punches and dies so that
Press load is reduced
Good cut edge is obtained
Warping of sheet is minimised
Cut blanks is straight
Which of the following statement is wrong?
The mortise gauge has two scribing pins
The gouges are chisels with a hollow shaped blade
An auger is a planing tool
All of these
The sand used for making cores is
Green sand
Dry sand
Loam sand
Oil sand
The operation of bending a sheet of metal along a curved axis, is known as
Plunging
Notching
Slitting
Forming
The fullers are used
For finishing flat surfaces
For necking down a piece of work
For punching a hole
To finish the punched hole
The punch and die set up is ________ for punching and piercing operation.
Same
Similar
Different
None of these
The metal is subjected to mechanical working for
Refining grain size
Reducing original block into desired shape
Controlling the direction of flow lines
All of these
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
In forehand welding, the weld is made
From left to right
From right to left
First from left to right and then from right to left
Either from left to right or from right to left
The cold chisels are made from
Cast iron
Mild steel
High speed steel
Cast tool steel
In order to deliver molten metal from pouring basin to gate, a ________ is used.
Riser
Sprue
Core
None of these
Structural sections such as rails, angles, I-beams are made by
Hot rolling
Hot drawing
Hot piercing
Hot extrusion
For gas welding, the pressure desired at the welding torch for oxygen is
7 to 103 kN/m²
70 to 280 kN/m²
280 to 560 kN/m²
560 to 840 kN/m²
In order to ram the sand harder at the back of the mould and softer on the pattern face, a ________ is used.
Sand slinger
Squeezing machine
Jolt machine
Stripper plate machine
A pattern maker's shrinkage rule considers
All pattern allowances
Only shrinkage allowance
All materials to be cast
All materials of the pattern
In electric resistance welding, pressure applied varies from
1 to 5 MPa
5 to 10 MPa
10 to 25 MPa
25 to 55 MPa
The oxygen cylinder is usually painted with
Black colour
White colour
Maroon colour
Yellow colour
In a hot chamber die casting machine
Melting pot is separate from the machine
Melting pot is an integral part of the machine
Melting pot may have any location
High temperature and pressure is used
In a ________, two or more operations are performed simultaneously at the single stroke of the ram.
Simple die
Progressive die
Combination die
Compound die
A sand employed on the faces of the pattern before moulding, is called
Green sand
Dry sand
Loam sand
Parting sand