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QC Welding Test 11:
Q. 1/30: Baking hours for E-6010 electrode ?
• 2 Hour
• 4 Hour
• Not required baking
• None of the Above
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Q 1/30
Test Progress : 3.33%
Q. 2/30: Which of the following statements is true
Oxygen-fuel gas cutting is essentially an oxidation thermal cutting process
Oxygen-fuel gas cutting is essentially a melting process
The only fuel gas is acetylene.
Propane is the preffered fuel gas in oxygen-fuel gas cutting as it produce a hotter flame
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Q 2/30
Test Progress : 6.67%
Q. 3/30: Visual unlikely found defects or less to find in VT inspection ?
surface porosity
under fill
under cut
lamination
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Q 3/30
Test Progress : 10.00%
Q. 4/30: Which of the following best describes a semi- automatic welding process
The welder is responsible for the arc gap and travel speed
The welder is responsible for the arc gap and travel speed only
The welding plant controls both travel speed and arc gap but under constent supervision
The welding plant controls both travel speed and arc gap no supervision required
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Q 4/30
Test Progress : 13.33%
Q. 5/30: In accordance with BS 5135 which of the following is applicable for scale C with regards to hydrogen content per 100g of deposited weld metal
> 15ml
>15 < 25ml
>10 < 15ml
> 5 <10ml
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Q 5/30
Test Progress : 16.67%
Q. 6/30: Which is the correct heat input if the amps are 350, volts 32 and travel speed 310mm/min
2.16 kJ/mm
0.036 kJ/mm
2160 kJ/mm
36 kJ/mm
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Q 6/30
Test Progress : 20.00%
Q. 7/30: In accordance with BS 5135 what is the minimum distance the pre heat shall be applied from the joint preparation
100mm
25mm
75mm
Not specified
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Q 7/30
Test Progress : 23.33%
Q. 8/30: If block of 5x5 square block is in Charpy V-notch test, it will be tested ..?
In design temperature of the material.
20F will be reduce from the design temperature
10F will be reduce from the design temperature
50F will be reduce from the design temperature
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Q 8/30
Test Progress : 26.67%
Q. 9/30: In accordance BS 5135 what is the recommended minimum time allowe for the pre heat temprature to equalise
2 min for each 25mm of parent metal thicknes
5 min for each 25mm of parent metal thicknes
2 min for each 50mm of parent metal thicknes
5 min for each 50mm of parent metal thicknes
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Q 9/30
Test Progress : 30.00%
Q. 10/30: The welder doing slow speed the crack where will appear?
Toe
Weld center
Any where
Root
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Q 10/30
Test Progress : 33.33%
Q. 11/30: Which of the following welding process would you expect to use a collet
TIG/TAG
MIG/MAG
MMA-PG position
All of the above
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Q 11/30
Test Progress : 36.67%
Q. 12/30: The welder doing welding with slow speed, where is chance to appear the crack ?
Toe
Weld center
Any where
Root
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Q 12/30
Test Progress : 40.00%
Q. 13/30: Which of the following may be used for the TIG/TAG welding of austonitic stainless steel
Lathanum electrode,dc -ve
Cerium electrode dc -ve
Zirconium electrode ac
Thorium electrode, dc +ve
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Q 13/30
Test Progress : 43.33%
Q. 14/30: The record of welder performance test is called ?
PQR
WQR
WPS
WPQ
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Q 14/30
Test Progress : 46.67%
Q. 15/30: Which of the following may be standared is entiteled Electrodes wires and fluxes for the Submerged arc welding process of carbon steel and medium tensile steel
BS 639
BS 2901
BS 2633
BS 4165
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Q 15/30
Test Progress : 50.00%
Q. 16/30: Difference between GTAW & GMAW is ?
• One is using AC & DC another not.
• Both is using non consumable electrode,
• One is considered manual & another is semi automatic.
Impact test is to measure?
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Q 16/30
Test Progress : 53.33%
Q. 17/30: Which of the following process use a constant voltage charectristic
Sub-arc <1000 amps,MMA, Electroslag
TIG/TAG, Sub arc >1000 amps Electroslag
Sub-arc <1000 amps,MIG/MAG, Electroslag
MIG/MAG, Sub arc >1000amps, Electroslag
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Q 17/30
Test Progress : 56.67%
Q. 18/30: What is the delay time between root pass & hot pass in cross country pipeline?
• 15 min for vertical up & 5 min for vertical down
• 20 min for vertical up & 7 min for vertical down
• 15 min for vertical up & 8 min for vertical down
• 30 min for vertical up & 10 min for vertical down
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Q 18/30
Test Progress : 60.00%
Q. 19/30: What are the possible results of having a too lower heat input
An increase in hardness, lower yield strength and lack of fusion
A reduction in touhness,hydeogen entrapment and an increase in hardness
Entrapped hydogen, an increase in hardness and lack of fusion
Entrapped hydogen, a reduction in carbon content and fusion
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Q 19/30
Test Progress : 63.33%
Q. 20/30: How to measure the convex fillet weld size ?
• By measuring Convex fillet throat thickness
• Get Theoretical throat thickness
• By measuring Convex fillet leg length
• None of the Above
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Q 20/30
Test Progress : 66.67%
Q. 21/30: A multi run MMA butt weld made on C/Mn steel consists of 5 passes using 6 mmm electrodes. A 12 passes made on the same joint using 4mm electrodes on the same material will;
Have a lower heat input and a higher degree of grain refiement
Have a lower heat input and a coarser grain structure.
Have a lower amount of distortion and higher degree of grain refinment
Have ahigher amount of distortion and lower degree of grain refinement
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Q 21/30
Test Progress : 70.00%
Q. 22/30: Welding qualification for process piping?
ASME B31.3
ASME B31.8
ASME B31.4
ASME IX
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Q 22/30
Test Progress : 73.33%
Q. 23/30: Due to high welding current input in single pass welding, crack occur in which location ?
• HAZ
• Toe
• Anywhere in weld
• Centerline of weld
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Q 23/30
Test Progress : 76.67%
Q. 24/30: The main reason for using a back purging when welding 18-8 stainless steel with TIG welding process is to:
Control the root penetration
Propane is the preffered fuel gas in oxygen-fuel gas cutting as it produce a hotter flame
Prevent root bead porosity
Prevent the formation off a dense oxide layer on the root
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Q 24/30
Test Progress : 80.00%
Q. 25/30: Ductility related to ?
Percentage of elongation
Reduction of cross section area
Both A & B
none of above
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Q 25/30
Test Progress : 83.33%
Q. 26/30: Which is often the hardest part of a multi run weld made using MMA
The heat affected zone of the root
The heat affected zone of the cap
The root
The caap
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Q 26/30
Test Progress : 86.67%
Q. 27/30: STRA test is for determined what ?
Tensile strength
Ductility
Through thickness properties in Z direction
none of above
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Q 27/30
Test Progress : 90.00%
Q. 28/30: The heat affected zone of a fusion weld
Usually has highest tensile strength
Cannot be avoided
Is usually martensitic
Both A and B
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Q 28/30
Test Progress : 93.33%
Q. 29/30: What are the documents require for the welding inspection ?
WPS
PQR
welder qualification record
all of the above
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Q 29/30
Test Progress : 96.67%
Q. 30/30: The heat affected zone associated with a fusion weld on steel has up to how many seprate regions of microstructure
4
6
1
2
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Q 30/30
Test Progress : 100.00%
Q. 31/30: Shielding helps to prevent oxidation ?
TRUE
FALSE
.
.
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Q 31/30
Test Progress : 103.33%
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