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Radar Technology

Quiz Number:  21
Course Name:  Industrial Technology/Engineering
Quiz N0. = 21
Teacher:  Ed Schmidt
Teacher's Home Page:  http://www.oocities.org/Baja/2140/ENG.htm
Teacher's Email:  schmidte@putnam.k12.il.us

Student Name:  
Student No:
No. of Questions= 22 ,Pass mark is - 70 %.

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1.  Radar emits invisible electromagnetic waves at a certain frequency:

a) true
b) false
2.  The electromagnetic wave that radar emits is called acousticwave:

a) true
b) false
3.  The waves that radar emit will reflect off most metallic objects, concrete and trees:

a) true
b) false
4.  The waves that radar emit will also reflect off of grass and bushes:

a) true
b) false
5.  Radar uses an antenna to read the reflected waves:

a) true
b) false
6.  There are computers inside of radar that help it to determind target speed:

a) true
b) flase
7.  Radar systems are free from interference:

a) true
b) false
8.  High voltage power lines, telephone lines, and neon lights might emit waves that can be picked up by a radar system:

a) true
b) false
9.  At a distance of 200m the width of the radar beam can usually cover 8 lanes of traffic:

a) true
b) false
10.  Radar always picks up the fastest moving object:

a) true
b) false
11.  The speed and distance targets from the radar can determind which has the strongest return signal:

a) true
b) false
12.  There are radar units that can identify and track multiple targets and determind their speed and shape:

a) true
b) false
13.  A photo radar is the type used in a moving cop car:

a) true
b) false
14.  Most radar units are fairly simple to use:

a) true
b) false
15.  Light travels at 200 kilometers per second:

a) true
b) false
16.  A radar unit can send out about 1000 signals per second:

a) true
b) false
17.  Another name for a radar signal is pulse:

a) true
b) false
18.  Doppler is being used by meteorologist to learn more about weather:

a) true
b) false
19.  Doppler radar can only detect raindrops and not wind:

a) true
b) false
20.  Doppler radar can only see wind coming toward it or away form it:

a) true
b) false
21.  NEXRAD stands for next generation radar:

a) true
b) false
22.  NEXRAD is the type of radar used by police departments:

a) true
b) false




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