CWB Level 2 Study Exam Questions and Answers |Fall
2026/2027 Update
Question 1
Centreline solidification cracking is most likely caused by:
Correct Answer
Welding too fast
Question 2
A liquid that wets a surface is characterized by:
A. No capillary action
B. A small contact angle
C. High density
D. High surface tension
E. Low fluorescence
Correct Answer
B. A small contact angle
Page 1 of 158
,Question 3
The direction of the magnetic field in the centre of a coil is:
a) Parallel to the axis of the coil
b) At right angles to the axis of the coil
Correct Answer
a) Parallel to the axis of the coil
Question 4
If a straight chromium steel of 18% Cr and < 0.1 % C is heated to 1000°C will it transform to austenite or remain as ferrite?
Correct Answer
Remain as ferrite
Question 5
What effect might mode conversion have on the appearance reflectors?
A. There are no effects due to mode change
B. Mode conversion due to internal reflection cannot occur
C. the reflection on the screen shifts because of the velocity change
D. It changes the effective angle of the probe
E. It is used to inspect inaccessible locations
Correct Answer
C. the reflection on the screen shifts because of the velocity change
Page 2 of 158
,Question 6
The most favourable direction for detecting a crack when using prods is when the
crack liees along the line between the prods.
Correct Answer
True
Question 7
Give one way in which a change to a liquid penetrant procedure could be qualified.
Correct Answer
Use a comparator block
Question 8
Complete the following:
Nickel stabilizes the ____ form of iron
Correct Answer
FCC
Question 9
Welding is a joining process that by definition requires:
Correct Answer
The application of either heat or pressure
Page 3 of 158
, Question 10
Conventional transformer-rectifiers;
A. convert high frequency current into lower voltage output
B. convert alternating current into direct current at lower than line voltage
C. convert low voltage directcurrent into high frequency alternating current
D. convert high voltage alternating current into low voltage, high frequency direct current
Correct Answer
D. convert high voltage alternating current into low voltage, high frequency direct current
Question 11
How can the contrast of x-ray images be improved?
A. by using shorter wave x-rays
B. by using low energy levels
C. by reducing the exposure time
D. by using high energy levels
E. by increasing to high voltage
Correct Answer
B. by using low energy levels
Page 4 of 158
2026/2027 Update
Question 1
Centreline solidification cracking is most likely caused by:
Correct Answer
Welding too fast
Question 2
A liquid that wets a surface is characterized by:
A. No capillary action
B. A small contact angle
C. High density
D. High surface tension
E. Low fluorescence
Correct Answer
B. A small contact angle
Page 1 of 158
,Question 3
The direction of the magnetic field in the centre of a coil is:
a) Parallel to the axis of the coil
b) At right angles to the axis of the coil
Correct Answer
a) Parallel to the axis of the coil
Question 4
If a straight chromium steel of 18% Cr and < 0.1 % C is heated to 1000°C will it transform to austenite or remain as ferrite?
Correct Answer
Remain as ferrite
Question 5
What effect might mode conversion have on the appearance reflectors?
A. There are no effects due to mode change
B. Mode conversion due to internal reflection cannot occur
C. the reflection on the screen shifts because of the velocity change
D. It changes the effective angle of the probe
E. It is used to inspect inaccessible locations
Correct Answer
C. the reflection on the screen shifts because of the velocity change
Page 2 of 158
,Question 6
The most favourable direction for detecting a crack when using prods is when the
crack liees along the line between the prods.
Correct Answer
True
Question 7
Give one way in which a change to a liquid penetrant procedure could be qualified.
Correct Answer
Use a comparator block
Question 8
Complete the following:
Nickel stabilizes the ____ form of iron
Correct Answer
FCC
Question 9
Welding is a joining process that by definition requires:
Correct Answer
The application of either heat or pressure
Page 3 of 158
, Question 10
Conventional transformer-rectifiers;
A. convert high frequency current into lower voltage output
B. convert alternating current into direct current at lower than line voltage
C. convert low voltage directcurrent into high frequency alternating current
D. convert high voltage alternating current into low voltage, high frequency direct current
Correct Answer
D. convert high voltage alternating current into low voltage, high frequency direct current
Question 11
How can the contrast of x-ray images be improved?
A. by using shorter wave x-rays
B. by using low energy levels
C. by reducing the exposure time
D. by using high energy levels
E. by increasing to high voltage
Correct Answer
B. by using low energy levels
Page 4 of 158
