Question

a limited - use alarm system set to accept a predetermined radiation level and trigger an alarm if a person enters the area.
infrared radiation detection
local alarms
microwave detectors
question 62 (1 point)
a perimeter control system, usually buried in the ground, which registers pressure; its use is limited within the industry and is generally only for highly specialized protection needs.
seismic detector
remote alarm
radio frequency fields

Explanation:

1. For the first question, infrared radiation detection systems can detect changes in infrared radiation when a person enters an area and can be set to trigger an alarm based on a predetermined level. Local alarms are just a general type of alarm and not specific to radiation - based detection. Microwave detectors work on the principle of microwave reflection and not on detecting a specific radiation level for the described scenario.
2. For the second question, seismic detectors are often buried in the ground and can register pressure changes caused by movement in the vicinity. Remote alarms are for alerting from a distance and not related to ground - based pressure registration. Radio frequency fields are not used for registering ground - based pressure for perimeter control in the described context.

Answer:

Question 61: Infrared radiation detection
Question 62: Seismic detector