This type of welding sequence shown in Fig. 1 is called as:
Figure 1
Stepping stone method
Symmetrical method
Backward method
Forward method
The main disadvantage of jigging and high restraint is the:
high levels of distortions
high levels of residual stresses
low levels of distortions
low levels of residual stresses
The full form of LVDT technique is:
Linear varying difference transducer
Line varying differential transducer
Linear variable differential transformer
None of these
Which type of distortion measurement technique involved the use of constructive and destructive interference among waves of light emitted from a single source?
Photogrammetry
Laser interferometry measurement
3-D CMM
all of these
Which type of distortion measurement technique used a spherical ruby stylus?
LVDT
Dial gauge
3-D CMM
laser beam triangulation
For double side parallel fillet weld subjected to an external force 100 kN. The weld has throat thickness of 10 mm and the measured shear stress is found to be Ï„ = 100 MPa. From the above given information find out the length of the welded joint design.
20 mm
30 mm
40 mm
50 mm
Among the following, which technique can be used for 3D deformation measurement purpose?
Ruller
Stereoscopic video imaging system
Dial gauge
Straight edge set
LVDT is a type of
electrochemical transducer
electromechanical transducer
electromagnetic transducer
all of these
In welding process, which strain is responsible for residual deformation?
residual plastic strains
residual elastic strains
residual elastic and plastic strains
none of these
Which type of edge preparations are easier to make/prepare?
Bevel grooves
J grooves
U grooves
none of these