fff

Question 1

In the A-scan display, the vertical displacement of the trace represents: (Multiple Choice)
Question options:

A) the amplitude of the reflected wave.

B) the size of the reflector.

C) distance.

D) time.

Answer 1

A) the amplitude of the reflected wave.

Question 2

Penetrameters are placed in which of the following locations? (Multiple Choice)
Question options:

A) The best possible geometric location to improve the penetrameter image

B) The worst possible geometric location

C) At an intermediate location not best or not worst

D) The location is not a factor

Answer 2

B) The worst possible geometric location

Question 3

An alternate NDE method that utilizes magnetic tape to record flux patterns is called: (Multiple Choice)
Question options:

A) magnetic resonance testing.

B) leak detection.

C) eddy current testing.

D) the flux leakage method

Answer 3

C) eddy current testing.

Question 4

Which type of metallographic test is used for grain size determination? (Multiple Choice)
Question options:

A) Charpy impact test

B) Macro exams

C) Micro exams

D) Corrosion testing

Answer 4

C) Micro exams

Question 5

Toughness is a measure of the ability of a material to: (Multiple Choice)
Question options:

A) bend under load.

B) handle stresses.

C) resist the growth of a crack.

D) retract after the load is released.

Answer 5

D) retract after the load is released.

Question 6

What type of testing is traditionally used to give an indication of how large an internal crack must be to cause brittle fracture? (Multiple Choice)
Question options:

A) Izod test

B) Charpy test

C) Tensile test

D) Fracture mechanics test

Answer 6

C) Tensile test

Question 7

Brinell hardness numbers (HB) between 200 and 400 correlate to tensile strength? How is this done? (Multiple Choice)
Question options:

A) Multiply the HB number by 1000

B) Divide the HB number by 500

C) Divide the HB number by 1000

D) Multiply the HB number by 500

Answer 7

D) Multiply the HB number by 500

Question 8

What type of consumable is preferred for a martensitic weldment if hardness is not a major factor? (Multiple Choice)
Question options:

A) Austenitic stainless steel

B) Matching composition

C) Basic mild steel electrode

D) Nickel-based electrode

Answer 8

A) Austenitic stainless steel

Question 9

What types of stainless steel are not able to undergo phase transformations on heating and cooling? (Multiple Choice)
Question options:

A) Pearlitic and ferritic

B) Ferritic and austenitic

C) Martensitic and precipitation hardening

D) Austenitic and precipitation hardening

Answer 9

B) Ferritic and austenitic

Question 10

Austenitic stainless steel weldments are more likely than carbon steel weldments to suffer from distortion because stainless steel: (Multiple Choice)
Question options:

A) has a higher thermal conductivity than carbon steel.

B) requires a greater heat input to weld.

C) has lower strength than carbon steel.

D) has a 50% greater coefficient of thermal expansion than carbon steel.

E) has a lower electrical resistivity than carbon steel at room temperature.

Answer 10

D) has a 50% greater coefficient of thermal expansion than carbon steel.

Question 11

According to CSA W59, a damaged container of low alloy SMAW electrodes must be: (Multiple Choice)
Question options:

A) re-baked at temperatures between 370 °C and 430 °C.

B) re-baked at temperatures between 230 °C and 260 °C.

C) re-baked at a temperature above 500 °C.

D) placed in a holding oven at 120 °C for 2-4 hours.

Answer 11

D) placed in a holding oven at 120 °C for 2-4 hours.

Question 12

What is the heat input efficiency of the SMAW process? (Multiple Choice)
Question options:

A) 65 - 85%

B) 50 - 85%

C) 20 - 50%

D) 90 - 95%

Answer 12

B) 50 - 85%

Question 13

Good fracture toughness normally requires: (Multiple Choice)
Question options:

A) a coarse grain structure.

B) a fine grain structure.

C) unrestricted growth of austenite grains.

D) use of a high heat input process such as electroslag.

Answer 13

B) a fine grain structure.

Question 14

Carbon dissolved completely in the FCC structure of steel is known as: (Multiple Choice)
Question options:

A) pearlite.

B) martensite.

C) ferrite.

D) austenite.

Answer 14

D) austenite.

Question 15

Select the correct statement. (Multiple Choice)
Question options:

A) PAW utilizes a steel electrode

B) PAW utilizes a tungsten electrode

C) PAW utilizes a zirconium electrode

D) None of the above

Answer 15

B) PAW utilizes a tungsten electrode

Question 16

The size of welding cables is determined by: (Multiple Choice)
Question options:

A) the length of cables and current flow.

B) voltage of the process and duty cycle.

C) arc starting method and current flow.

D) process used and current flow.

Answer 16

A) the length of cables and current flow.

Question 17

The GMAW process uses: (Multiple Choice)
Question options:

A) a constant current power supply, resulting in an increase in arc voltage as the arc length stays constant.

B) a constant current power supply, resulting in a decrease in arc voltage as the arc length decreases.

C) a constant voltage power supply, resulting in an increase in current as the contact-tip-to-work distance increases.

D) a constant voltage power supply, resulting in an increase in

Answer 17

C) a constant voltage power supply, resulting in an increase in current as the contact-tip-to-work distance increases.

Question 18

Which statements is correct for resistance spot welding? (Multiple Choice)
Question options:

A) Resistance spot welding voltage is very high

B) Resistance spot welding current is very high

C) Resistance spot welding travel speed is high

Answer 18

B) Resistance spot welding current is very high

Question 19

The term laser is an acronym for : (Multiple Choice)
Question options:

A) light accelerated by selenium emitting radiation.

B) light amplification by stimulated emission of radiation.

C) light aligned to stimulate emission of radiation.

D) light amplification by stimulated electron radiation.

Answer 19

B) light amplification by stimulated emission of radiation.