VT Level II General Quiz - Set 1
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1.
Which layer of the eye contains the light-sensitive rods and cones?
2.
Cone cells in the eye are primarily responsible for:
3.
The region of the retina that provides the sharpest central vision is the:
4.
The optic disc produces a 'blind spot' in the visual field because:
5.
Which part of the eye regulates the amount of light entering it?
6.
Accommodation of the eye refers to:
7.
The SI unit of illuminance is the:
9.
According to the inverse square law, if the distance from a point light source to a surface is doubled, the illuminance on the surface becomes:
10.
Glare from a highly polished surface during visual testing is best reduced by:
11.
In visual testing, contrast is best defined as:
12.
Specular (mirror-like) reflection is most likely to occur from a surface that is:
13.
Using the common approximation of 10 in. divided by focal length, a simple magnifier with a focal length of 2.5 in. has a magnifying power of approximately:
14.
As the magnifying power of a lens increases, its field of view and depth of field generally:
15.
In a rigid borescope, the image is transmitted from the objective to the eyepiece by:
16.
For a fiberscope to transmit a usable image, the image-carrying fibre bundle must be:
17.
A videoscope differs from a fiberscope mainly because it:
18.
The articulation feature of a flexible scope allows the inspector to:
19.
A metric vernier caliper has 50 vernier divisions that span 49 mm of the main scale. Its resolution is:
20.
A metric outside micrometer has a spindle thread pitch of 0.5 mm and 50 divisions on the thimble. Each thimble division represents:
21.
Which tool is best suited for measuring the depth of individual corrosion pits on a vessel wall?
22.
A Hi-Lo welding gauge is primarily used to measure:
23.
The leg size of a completed fillet weld is most commonly checked with a:
24.
Undercut is best described as:
25.
Overlap in a weld is:
26.
Porosity in weld metal is caused primarily by:
27.
Arc strikes outside the weld groove are of concern mainly because they can:
28.
Laminations in rolled plate most commonly originate from:
29.
A cold shut in a casting results from:
30.
Hot tears in castings typically occur:
31.
A forging lap is formed when:
32.
Seams in rolled or drawn bar stock are typically:
33.
The presence of 'beach marks' on a fracture surface is characteristic of:
34.
Galvanic corrosion occurs when:
35.
Pitting corrosion is best described as:
36.
Erosion damage is caused primarily by:
37.
Which of the following is NOT one of the five basic weld joint types?
38.
The junction between the face of a weld and the base metal is called the weld:
39.
Before entering a confined space such as a vessel to perform visual inspection, the inspector must ensure that: