PSP Perimeter Security and Physical Barriers 2

Question 1

The US Department of State's K-rating system for anti-ram barriers tests a vehicle at 50 mph. What does a K12 rating indicate?

Accepted Answer

The barrier stops a 15,000 lb vehicle traveling at 50 mph

Answer

A K12 rating means the barrier successfully stopped a 15,000 lb vehicle (medium-duty truck) traveling at 50 mph with no more than 3.3 feet of penetration beyond the face.

Question 2

What is the recommended minimum distance between parallel rows of concertina wire on a high-security perimeter fence to slow intruder movement?

Accepted Answer

The rows should not be parallel but staggered

Answer

Staggering concertina wire rows in a pyramid or box configuration is more effective than parallel rows, as it entangles intruders more effectively and is harder to defeat.

Question 3

Which fence type is recommended by ASIS for high-security applications due to its rigidity and resistance to cut-through attacks?

Accepted Answer

Welded wire mesh panel fence

Answer

Welded wire mesh panel fences (such as 358 anti-cut mesh) offer superior resistance to cutting and climbing compared to chain-link due to their rigid construction and small aperture size.

Question 4

A security assessment reveals that an 8-foot chain-link fence has a gate that takes 90 seconds to close and lock. What vulnerability does this represent?

Accepted Answer

Perimeter delay vulnerability — insufficient closure speed allows vehicle intrusion

Answer

A slow-closing gate creates a perimeter delay vulnerability where a determined adversary can drive or run through before the gate secures, defeating the purpose of the barrier.

Question 5

According to FEMA and DoD perimeter security standards, what is the recommended minimum clear zone width on BOTH sides of an outer perimeter fence?

Accepted Answer

20 feet (6m) inside, 20 feet (6m) outside

Answer

A 20-foot clear zone on both sides of the perimeter fence provides unobstructed surveillance and eliminates concealment cover for approaching intruders.

PSP - Physical Security Professional Practice Test

PSP - Physical Security Professional Practice Test

PSP Perimeter Security and Physical Barriers 2