Tenprint Fingerprint Certification Tenprint Fingerprint Quality Standards & Control

Question 1

What is the minimum image resolution recommended by the FBI for tenprint fingerprint scans?

Accepted Answer

500 ppi

Answer

The FBI requires a minimum of 500 pixels per inch (ppi) for tenprint fingerprint scans to ensure sufficient detail for comparison.

Question 2

Which FBI standard governs the quality requirements for electronic fingerprint submissions?

Accepted Answer

EBTS (Electronic Biometric Transmission Specification)

Answer

The Electronic Biometric Transmission Specification (EBTS) sets the technical requirements for electronic fingerprint submissions to the FBI.

Question 3

What is the NFIQ (NIST Fingerprint Image Quality) scale range?

Accepted Answer

1–5 (lower is better)

Answer

NFIQ rates fingerprint image quality on a scale of 1–5, where 1 is the highest quality and 5 is the poorest quality.

Question 4

What term describes a fingerprint impression that is too light due to insufficient ink or pressure?

Accepted Answer

Thin impression

Answer

A thin impression results from insufficient ink or pressure, causing ridge detail to appear light and poorly defined.

Question 5

What quality defect occurs when too much ink causes ridges to fill in and appear fused together?

Accepted Answer

Heavy impression

Answer

A heavy impression results from excessive ink, causing ridges to spread and fill valleys, obscuring individual ridge detail.

Tenprint Fingerprint Certification Practice Test