2154623
Descrição
Quiz por Freddy Bueno, atualizado more than 1 year ago
|
Criado por Freddy Bueno
aproximadamente 9 anos atrás
|
|
Questão 1
Questão
Welding is a joining process that by definition requires the application of:
Responda
-
both heat and pressure
-
either heat or pressure
-
both heat and filler metal
-
both pressure and filler metal
-
all of the above
Questão 2
Questão
In arc welding, the electric arc is intensely hot with temperatures exceeding:
Responda
-
20,000 Degrees C
-
30,000 Degrees C
-
33,000 Degrees C
-
40,000 Degrees C
-
50,000 Degrees C
Questão 3
Questão
The most common gas used with gas shielded flux cored arc welding is:
Responda
-
Pure argon
-
Pure helium
-
75% Ar-25% CO2
-
Argon with 10% Hydrogen
Questão 4
Questão
The technique used for semi-automatic welding with gas shielded flux cored arc welding is:
Responda
-
Drag (backhand)
-
Push (forehand)
Questão 5
Questão
Welding equipment for gas shielded flux cored arc welding is essentially the same as for gas metal arc welding.
Responda
- True
- False
Questão 6
Questão
Gas shielded flux cored wires with basic ingredients in the core are ideally suited for out-of-position welding
Responda
- True
- False
Questão 7
Questão
Constant voltage power source are preferred for SMAW
Responda
- True
- False
Questão 8
Questão
Large diameter electrodes are preferred for welding the root passes in V grooves and for out-of-position welds
Responda
- True
- False
Questão 9
Questão
Constant voltage power source are generally used for GMAW.
Responda
- True
- False
Questão 10
Questão
In the submerged arc welding process, granular flux is placed on the unleaded seam behind the consumable electrode.
Responda
- True
- False
Questão 11
Questão
Fused fluxes are prone to moisture pick up
Responda
- True
- False
Questão 12
Questão
The source of heat in the resistance welding process is:
Responda
-
An electric arc
-
External pressure
-
Resistance of the copper electrode to electron flow
-
Electrical resistance of the workpieces
Questão 13
Questão
Which of the following arc welding processes is non-consumable electrode type?
Responda
-
GTAW
-
SMAW
-
GMAW
-
FCAW
-
SAW
Questão 14
Questão
Which of the following arc welding processes is non-consumable electrode type?
Responda
-
SMAW
-
GMAW
-
FCAW
-
SAW
-
PAW
Questão 15
Questão
The electron beam welding process results in:
Responda
-
wide, deep-penetrating welds and heat-affected zones.
-
narrow, deep-penetrating welds and heat-affected zones.
-
Narrow, shallow-penetrating welds and heat-affected zones.
-
wide, shallow-penetrating welds and heat-affected zones.
Questão 16
Questão
In thermite welding, the reaction from which the required heat and molten metal is obtained is called:
Responda
-
Exothermic
-
Duo thermic
-
Interthermic
-
endothermic
Questão 17
Questão
In electroslag welding, the usual cooling medium used on the copper shoes is:
Responda
-
Dry ice
-
Air
-
Oil
-
Water
Questão 18
Questão
A welding arc consist of a:
Responda
-
Low current and a high voltage
-
High current and a low voltage
-
High current and a high voltage
-
Low current and a low voltage
Questão 19
Questão
The heat of the welding arc is used to:
Responda
-
Locally melt the base material and filler material to create fusion upon solidification
-
Heat the base material and melt the filler material to form a surface bond between the two materials
-
Heat the materials to be jointed before the application of pressure
-
Promote a metallurgical reaction resulting in the bonding of the adjoining materials
Questão 20
Questão
Welding using the GTAW process with current set to DCEN (Direct Current Electrode Negative) results in:
Responda
-
30% arc heat at the electrode and 70% arc heat at the work.
-
70% arc heat at the electrode and 30% arc heat at the work
-
40% arc heat at the electrode and 60% arc heat at the work
-
60% arc heat at the electrode and 40% arc heat tat the work
Questão 21
Questão
The function of the ingredients in the electrode coating of SMAW electrodes is to:
Responda
-
Provide a gas shield, slag covering, scavengers, arc stabilization and additional alloying elements.
-
React with the base metal to assist in the weld fusion
-
Remove rust, mill scale and other contaminants from the surface of the joint.
-
Counteract the effects of arc blow.
Questão 22
Questão
The temperature for holding low-hydrogen electrodes is:
Responda
-
30 Degrees C
-
90 Degrees C
-
120 Degrees C
-
430 Degrees C
Questão 23
Questão
The GMAW Process uses _______________ To shield the molten weld metal from the atmosphere:
Responda
-
A slag system
-
External shielding gas
-
A blanket of flux
-
a vacuum chamber
Questão 24
Questão
Flux cored arc welding is a welding process usually used in the semi-automatic mode consisting of:
Responda
-
A constant current power supply, a continuos wire feeder, a welding gun, and a continuos solid filler metal electrode
-
A constant voltage power supply, a continuos speed wire feeder, a welding gun, and a continuos filler metal electrode with a hollow core containing flux and other ingredients
-
A constant current power supply, a variable speed wire feeder, a welding gun, and a continuos filler metal electrode with a hollow core containing flux and other ingredients
-
A constant voltage power supply, a continuos speed wire feeder, a welding gun, and a continuos filler metal electrode with a hollow core containing primarily metal powder
Questão 25
Questão
For a flat weld profile and good penetration profile using the metal cored arc welding process (MCAW), a travel angle of:
Responda
-
20 Degrees using a drag technique should be used
-
10 Degrees using a drag technique should be used
-
15 Degrees using a push technique should be used
-
30 Degrees using a push technique should be used
Questão 26
Questão
SAW fluxes:
Responda
-
Are classified, each with its own separate designation
-
Are not classified. Only the wire is classified
-
Are classified in conjunction with the welding wire forming a flux-wire designation
-
Are all classified with EM12K wire. Used with other wires would require companies to perform testing to verify desired properties
Questão 27
Questão
A major advantage of the electron beam welding process is:
Responda
-
Low equipment cost and ease of use
-
High speed welding of thin materials
-
Fit-up of joints does not have to be precise
-
Full penetration welds on thick materials in one pass
Quer criar seus próprios Quizzes gratuitos com a GoConqr? Saiba mais.