CWB 2 All Module Exams
A Disadvantage of using X-ray tube is this is:
A) Is very portable
B) Requires an electrical source
C) Has lower sensitivity
D) None of the above - ANS-B) Requires an electrical source
A Plasma is:
A) A gas made up of nice ions and unfastened electrons
B) A liquid used to reduce adherence of spatter
C) The predominant thing in an inverter energy source
D) Always present in an electrical circuit - ANS-A) A gasoline made from advantageous ions
and free electrons
A proof check on a shape to degree the very last great of manufacture is a check that:
A) Involves overloading past layout of the shape
B) Shows absolute evidence of first-class
C) Involves the speedy growth in pressure
D) Does no longer require governing codes and specifications - ANS-A) Involves overloading
beyond design of the shape
A Rectifier is a tool that converts:
A) DC contemporary to AC modern-day
B) AC Current to a high fee DC current
C) DC cutting-edge to a high price DC present day
D) AC modern to DC contemporary - ANS-D) AC modern-day to DC modern
A self-regulating welding arc is produced via a:
A) Constant modern-day power source with a steady speed cord feed machine
B) Constant voltage electricity source with a voltage sensing wire feed device
C) Constant cutting-edge power source
D) Constant voltage electricity source with a regular pace cord feed gadget - ANS-D)
Constant voltage electricity supply with a constant velocity cord feed device
A chrome steel is stated to be passivated when:
A) An oxide layer isn't present
B) Carbides have brought on on the grain obstacles
C) A solid adherent oxide layer protects the floor
D) A answer warmth treatment become finished - ANS-C) A solid adherent oxide layer
protects the surface
A Transformer is a device that:
, A) Transforms AC to DC
B) Works simplest to exchange a DC voltage
C) Changes the value of an AC voltage however does not trade the frequency
D) Is crafted from a semiconductor - ANS-C) Changes the cost of an AC voltage but does no
longer exchange the frequency
An example of a low restraint weld is a:
A) Corner joint
B) Set on nozzle
C) Tee joint
D) Fillet weld - ANS-D) Fillet weld
An ultrasonic beam adjustments attitude (refracts) when it travels from a plastic probe into a
metal specimen due to the fact:
A) The wave velocity is specific in steel than in plastic
B) The frequency is distinct in metallic than in plastic
C) Only transverse waves can journey in metal
D) The attitude does not alternate
E) The amplitude is decreased by attenuation - ANS-A) The wave pace is one-of-a-kind in
metal than in plastic
At what point does the carbon content indicate that the cloth is no longer steel however cast
iron?
A) Beyond 1.7%
B) Beyond 17%
C) Beyond 7.1%
D) Beyond 0.Seventy one%
E) Beyond 0.17% - ANS-A) Beyond 1.7%
Brittle materials in a sturdiness test will:
A) Absorb considerable energy
B) Absorb minimum energy
C) Deform with great plasticity
D) Exhibit a flat and dull floor - ANS-B) Absorb minimal energy
Characteristics of a wave propagating thru fabric are:
A) Wavelength, pace and frequency
B) Density, color, and weight
C) Melleability, hardness, and sturdiness
D) Frequency, Velocity, and floor finish - ANS-A) Wavelength, pace and frequency
Decreasing the number of weld beads in a specific weld will:
A) Result in annealing the weld place
B) Give a finer grain shape
C) Reduce the transverse shrinkage
D) Increase the transverse shrinkage
E) Possibly crack the foundation skip - ANS-C) Reduce the transverse shrinkage
Electromagnetic radiation with wavelengths longer than visible light are:
A Disadvantage of using X-ray tube is this is:
A) Is very portable
B) Requires an electrical source
C) Has lower sensitivity
D) None of the above - ANS-B) Requires an electrical source
A Plasma is:
A) A gas made up of nice ions and unfastened electrons
B) A liquid used to reduce adherence of spatter
C) The predominant thing in an inverter energy source
D) Always present in an electrical circuit - ANS-A) A gasoline made from advantageous ions
and free electrons
A proof check on a shape to degree the very last great of manufacture is a check that:
A) Involves overloading past layout of the shape
B) Shows absolute evidence of first-class
C) Involves the speedy growth in pressure
D) Does no longer require governing codes and specifications - ANS-A) Involves overloading
beyond design of the shape
A Rectifier is a tool that converts:
A) DC contemporary to AC modern-day
B) AC Current to a high fee DC current
C) DC cutting-edge to a high price DC present day
D) AC modern to DC contemporary - ANS-D) AC modern-day to DC modern
A self-regulating welding arc is produced via a:
A) Constant modern-day power source with a steady speed cord feed machine
B) Constant voltage electricity source with a voltage sensing wire feed device
C) Constant cutting-edge power source
D) Constant voltage electricity source with a regular pace cord feed gadget - ANS-D)
Constant voltage electricity supply with a constant velocity cord feed device
A chrome steel is stated to be passivated when:
A) An oxide layer isn't present
B) Carbides have brought on on the grain obstacles
C) A solid adherent oxide layer protects the floor
D) A answer warmth treatment become finished - ANS-C) A solid adherent oxide layer
protects the surface
A Transformer is a device that:
, A) Transforms AC to DC
B) Works simplest to exchange a DC voltage
C) Changes the value of an AC voltage however does not trade the frequency
D) Is crafted from a semiconductor - ANS-C) Changes the cost of an AC voltage but does no
longer exchange the frequency
An example of a low restraint weld is a:
A) Corner joint
B) Set on nozzle
C) Tee joint
D) Fillet weld - ANS-D) Fillet weld
An ultrasonic beam adjustments attitude (refracts) when it travels from a plastic probe into a
metal specimen due to the fact:
A) The wave velocity is specific in steel than in plastic
B) The frequency is distinct in metallic than in plastic
C) Only transverse waves can journey in metal
D) The attitude does not alternate
E) The amplitude is decreased by attenuation - ANS-A) The wave pace is one-of-a-kind in
metal than in plastic
At what point does the carbon content indicate that the cloth is no longer steel however cast
iron?
A) Beyond 1.7%
B) Beyond 17%
C) Beyond 7.1%
D) Beyond 0.Seventy one%
E) Beyond 0.17% - ANS-A) Beyond 1.7%
Brittle materials in a sturdiness test will:
A) Absorb considerable energy
B) Absorb minimum energy
C) Deform with great plasticity
D) Exhibit a flat and dull floor - ANS-B) Absorb minimal energy
Characteristics of a wave propagating thru fabric are:
A) Wavelength, pace and frequency
B) Density, color, and weight
C) Melleability, hardness, and sturdiness
D) Frequency, Velocity, and floor finish - ANS-A) Wavelength, pace and frequency
Decreasing the number of weld beads in a specific weld will:
A) Result in annealing the weld place
B) Give a finer grain shape
C) Reduce the transverse shrinkage
D) Increase the transverse shrinkage
E) Possibly crack the foundation skip - ANS-C) Reduce the transverse shrinkage
Electromagnetic radiation with wavelengths longer than visible light are:
