# Fingerprint Classification

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Fingerprint Classification Quiz

• 1.

### There are ____ number of patterns and ___ number of sub-patterns.

• A.

3 patterns and 8 sub-patterns

• B.

4 patterns and 3 sub-patterns

• C.

8 patterns and 3 sub-patterns

A. 3 patterns and 8 sub-patterns
Explanation
The question states that there are a certain number of patterns and sub-patterns. The correct answer states that there are 3 patterns and 8 sub-patterns. This means that there are three main patterns, and within each of these patterns, there are 8 sub-patterns.

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• 2.

### _____ may be defined as two innermost ridges which start parallel, diverge, and surround or tend to surround the pattern area.

• A.

Pattern Lines

• B.

Type Lines

• C.

Long Lines

B. Type Lines
Explanation
Type lines may be defined as two innermost ridges which start parallel, diverge, and surround or tend to surround the pattern area.

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• 3.

### A _____ is the forking or dividing of one line into two or more branches.

• A.

Divergences

• B.

Line Types

• C.

Bifurcations

C. Bifurcations
Explanation
A bifurcation is the forking or dividing of one line into two or more branches.

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• 4.

### In regards to type lines when there is a definite break the ridge immediately _____ of it is considered its continuation.

• A.

Inside

• B.

Outside

• C.

Beside

B. Outside
Explanation
When there is a definite break in the ridge, the ridge immediately outside of it is considered its continuation. This means that the ridge pattern continues on the outside of the break, rather than on the inside or beside it.

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• 5.

### A ___ is the spreading apart of two lines which have been running parallel or nearly parallel.

• A.

Divergences

• B.

Bifurcation

• C.

Pattern Area

A. Divergences
Explanation
Divergences refer to the spreading apart of two lines that were previously running parallel or nearly parallel. This can occur in various contexts, such as in economics or in the study of fluid dynamics. When there is a divergence, the lines move away from each other, indicating a separation or a divergence in their paths or trajectories.

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• 6.

### ____ are never formed by a single ridge but by the abutting of one ridge against another.

• A.

Bifurcations

• B.

Angles

• C.

Divergences

B. Angles
Explanation
Angles are never formed by a single ridge but by the abutting of one ridge against another. This means that angles are created when two ridges meet or intersect with each other. Bifurcations, on the other hand, refer to the splitting or dividing of a ridge into two separate branches. Divergences are the spreading apart or separating of ridges. Therefore, only angles fit the given description.

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• 7.

### Within the pattern areas of loops and whorls are enclosed the _____ which are used to classify them.

• A.

Focal Points

• B.

Angles

• C.

Type Lines

A. Focal Points
Explanation
Within the pattern areas of loops and whorls, there are certain distinctive points called focal points. These focal points are used to classify the loops and whorls. They help in identifying and categorizing the different patterns in fingerprint analysis. The presence and positioning of these focal points play a crucial role in determining the type and classification of the fingerprint pattern.

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• 8.

### The ____ is that point on a ridge at or in front of the nearest the center of the divergence of the type lines.

• A.

Angles

• B.

Focal Points

• C.

Delta

• D.

None of the above

C. Delta
Explanation
The term "delta" refers to the point on a ridge where the type lines diverge. This point is located at or in front of the nearest center of the divergence. The other options, angles and focal points, do not accurately describe this concept. Therefore, the correct answer is delta.

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• 9.

### Angles can be used as type lines.

• A.

True

• B.

False

B. False
Explanation
Angles cannot be used as type lines. Type lines are used in architectural or engineering drawings to indicate the type of line being used, such as a solid line for visible edges or a dashed line for hidden edges. Angles, on the other hand, are measurements of the space between two intersecting lines. They are not used to indicate the type of line being used in a drawing. Therefore, the statement is false.

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• 10.

### The ___ is the approximate center of the finger impression.

• A.

Focal Point

• B.

Delta

• C.

Core

• D.

None of the above

C. Core
Explanation
The core is the approximate center of the finger impression. It is a central point within the fingerprint pattern that is used to analyze and classify the fingerprint. The core is typically located in the middle of the loop or whorl pattern and is an important feature in identifying and comparing fingerprints. The other options, focal point and delta, are not specifically related to the center of the fingerprint pattern.

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• 11.

### Select all the essentials of a loop.

• A.

A core

• B.

A sufficient recurve

• C.

A delta

• D.

A ridge count

• E.

Appendages

B. A sufficient recurve
C. A delta
D. A ridge count
Explanation
The essentials of a loop are a sufficient recurve, a delta, and a ridge count. A loop is a type of fingerprint pattern, and these characteristics are used to classify and identify fingerprints. A sufficient recurve refers to the curved ridge that starts inside the pattern and flows back towards it. A delta is a triangular ridge pattern found at the core of the loop. A ridge count is the number of ridges that cross a specific line in the pattern. These features are crucial in analyzing and comparing fingerprints for forensic purposes.

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• 12.

### A __ may be defined as that part of a recurving ridge between the shoulders of a loop.

• A.

Delta

• B.

Appendages

• C.

Sufficient recurve

• D.

None of the above

C. Sufficient recurve
Explanation
A "sufficient recurve" may be defined as that part of a recurving ridge between the shoulders of a loop. This means that when looking at a loop pattern, the sufficient recurve refers to the area between the two points where the ridge curves back towards the center of the loop. It is an important characteristic used in analyzing and classifying fingerprint patterns.

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• 13.

### ___ loops enters and exits toward the little finger.

• A.

• B.

Arch

• C.

Ulnar

C. Ulnar
Explanation
The correct answer is "Ulnar" because the ulnar loop is a type of fingerprint pattern that enters and exits toward the little finger. This pattern is characterized by a loop that starts on one side of the finger and curves back towards the same side, forming a loop that is tilted towards the little finger.

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• 14.

### ___ loops enters and exits toward the thumb.

• A.

• B.

Arch

• C.

Ulnar

Explanation
The statement suggests that the loops enter and exit towards the thumb. Among the given options, the only artery that follows this pattern is the radial artery. The radial artery runs along the thumb side of the forearm and supplies blood to the forearm and hand. Therefore, the correct answer is radial.

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• 15.

### Of all the fingerprints the most common print is loop.  Of these loops 95% of them are ___.

• A.

• B.

Arch

• C.

Ulnar

C. Ulnar
Explanation
The correct answer is "Ulnar." The explanation for this is that the question states that the most common type of fingerprint is a loop. It further specifies that out of all the loop fingerprints, 95% of them are ulnar loops. Therefore, ulnar is the correct answer as it represents the majority of loop fingerprints.

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• 16.

### A ___ the ridges enter on one side of the impression and flow or tend to flow out the other with a rise or wave in the center.

• A.

Loop

• B.

Plain Arch

• C.

Tented Arch

B. Plain Arch
Explanation
A plain arch is a type of fingerprint pattern where the ridges enter on one side of the impression and flow or tend to flow out the other side with a rise or wave in the center. This pattern does not form a loop or tented arch, which makes the plain arch the correct answer.

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• 17.

### In ___ most ridges enter upon one side of the impression and flow or tend to flow out upon the other side.

• A.

Loop

• B.

Plain Arch

• C.

Tented Arch

C. Tented Arch
Explanation
In a tented arch fingerprint pattern, most ridges enter on one side of the impression and flow or tend to flow out on the other side. This means that the ridges form an upward peak in the center of the pattern, resembling a tent. This is different from a loop pattern where the ridges enter on one side and flow out on the same side, and a plain arch pattern where the ridges enter on one side and flow out on the opposite side without forming a peak.

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• Current Version
• Aug 18, 2023
Quiz Edited by
ProProfs Editorial Team
• Sep 28, 2010
Quiz Created by
Bmcree

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