CWB Level 2 Closed Book
To measure the strength of a welded joint what mechanical check would you prescribe?
A) A transverse weld anxiety test.
B) A charpy test.
C) A CTOD check.
D) An all weld steel tension test.
E) A facet bend take a look at. - ANSa) A transverse weld tension check.
Select the slicing process that would offer the narrowest warmness affected area whilst reducing
12.Five mm (zero.5 in) thick carbon metal.
A) Oxy-acetylene reducing.
B) Air-carbon arc slicing.
C) Oxy-propane slicing.
D) Plasma arc cutting.
E) Laser beam slicing - ANSe) Laser beam cutting
Which of the following refers to a welder check wherein a pipe meeting is located vertically and
the joint welded inside the horizontal role with out rotating the assembly?
A) 1G
b) 2G
c) 3G
d) 5G
e) 6G - ANSb) 2G
Which of the following imperfections is typically considered as unacceptable regardless of size
or region?
A) Porosity.
B) Crack.
C) Inadequate penetration.
D) Lamination.
E) Burn-thru. - ANSb) Crack.
Select the ideal penetrameter thickness for two% sensitivity whilst radiographing a weldment
1.25 inches in thickness.
A) zero.012 in.
B) zero.Half in.
, C) 0.0.5 in.
D) 0.030 in. - ANSc) 0.1/2 in.
Which of the subsequent statements regarding porosity is genuine?
A) Porosity cannot be trapped within a weld.
B) Porosity movements up via later passes and will show most effective in a final pass.
C) Porosity is confined to the centre line of a weld.
D) Porosity can end result from faulty welder approach.
E) Porosity may be dissipated via the correct warmness treatment. - ANSd) Porosity can result
from faulty welder approach.
An abnormal, dense white spot is visible at the radiograph of a weld. Assuming it changed into
due to the welding manner used, which one of the procedures beneath could be accountable?
A) SMAW technique.
B) GTAW procedure.
C) GMAW technique.
D) ST process.
E) ESW technique. - ANSb) GTAW process.
Which of the following operations is known to result in the emission of ionizing radiation at
stages dangerous to human health?
A) Shielded metal arc welding.
B) Plasma arc welding.
C) Operation of excessive voltage portable generator sets.
D) Radiographic inspection.
E) Electroslag and electrogas welding. - ANSd) Radiographic inspection.
The ultrasonic transducer is pressed against the plate of a welded joint. The sound travels
longitudinally via the plate to the alternative facet. The sign visible at the UT display that comes
from this contrary aspect of the plate:
a) Is the initial pulse signal.
B) Is the again reflection sign.
C) Is the the front mirrored image signal.
D) Must be equal in amplitude to any disorder sign.
E) Cannot be used for establishing the thickness of the cloth beneath take a look at. - ANSb) Is
the again reflection sign.
Which of the following is a chrome steel electrode?
A) E4918-1
To measure the strength of a welded joint what mechanical check would you prescribe?
A) A transverse weld anxiety test.
B) A charpy test.
C) A CTOD check.
D) An all weld steel tension test.
E) A facet bend take a look at. - ANSa) A transverse weld tension check.
Select the slicing process that would offer the narrowest warmness affected area whilst reducing
12.Five mm (zero.5 in) thick carbon metal.
A) Oxy-acetylene reducing.
B) Air-carbon arc slicing.
C) Oxy-propane slicing.
D) Plasma arc cutting.
E) Laser beam slicing - ANSe) Laser beam cutting
Which of the following refers to a welder check wherein a pipe meeting is located vertically and
the joint welded inside the horizontal role with out rotating the assembly?
A) 1G
b) 2G
c) 3G
d) 5G
e) 6G - ANSb) 2G
Which of the following imperfections is typically considered as unacceptable regardless of size
or region?
A) Porosity.
B) Crack.
C) Inadequate penetration.
D) Lamination.
E) Burn-thru. - ANSb) Crack.
Select the ideal penetrameter thickness for two% sensitivity whilst radiographing a weldment
1.25 inches in thickness.
A) zero.012 in.
B) zero.Half in.
, C) 0.0.5 in.
D) 0.030 in. - ANSc) 0.1/2 in.
Which of the subsequent statements regarding porosity is genuine?
A) Porosity cannot be trapped within a weld.
B) Porosity movements up via later passes and will show most effective in a final pass.
C) Porosity is confined to the centre line of a weld.
D) Porosity can end result from faulty welder approach.
E) Porosity may be dissipated via the correct warmness treatment. - ANSd) Porosity can result
from faulty welder approach.
An abnormal, dense white spot is visible at the radiograph of a weld. Assuming it changed into
due to the welding manner used, which one of the procedures beneath could be accountable?
A) SMAW technique.
B) GTAW procedure.
C) GMAW technique.
D) ST process.
E) ESW technique. - ANSb) GTAW process.
Which of the following operations is known to result in the emission of ionizing radiation at
stages dangerous to human health?
A) Shielded metal arc welding.
B) Plasma arc welding.
C) Operation of excessive voltage portable generator sets.
D) Radiographic inspection.
E) Electroslag and electrogas welding. - ANSd) Radiographic inspection.
The ultrasonic transducer is pressed against the plate of a welded joint. The sound travels
longitudinally via the plate to the alternative facet. The sign visible at the UT display that comes
from this contrary aspect of the plate:
a) Is the initial pulse signal.
B) Is the again reflection sign.
C) Is the the front mirrored image signal.
D) Must be equal in amplitude to any disorder sign.
E) Cannot be used for establishing the thickness of the cloth beneath take a look at. - ANSb) Is
the again reflection sign.
Which of the following is a chrome steel electrode?
A) E4918-1
