____ use ultrasonic frequencies and microwaves to detect movement.
A. Intercom systems
B. Video surveillance systems
C. Intrusion detectors
D. Motion detectors
Answer: D
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The United States is divided into _____ cattle raising regions
a. four c. ten b. eight d. twelve
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An easy exit feature is an additional function of what accessory system?
What will be an ideal response?
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What type of grain structure is mostly affected by stress relief anneal?
A) Intermetallic compounds and martensite B) All grains are recrystallized C) Cold worked ferrite grain D) Hard carbide and pearlite grains
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What is the modulus of a 5-bit ring counter?
A) 10 B) 32 C) 16 D) 5
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