If the seal was not properly aligned or there is excessive wear in some bearing or shaft, _____ wear tracks will
be the indicator.
a. narrow
b. radial
c. parallel
d. irregular
d
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A ____ equals one thousandths (1/1000) of a meter.
a. millimeter b. centimeter c. decimeter d. micrometer
Answer the following statement(s) true (T) or false (F)
1. Coax cable is the most commonly used link in CCTV systems. 2. Viewing a recorded image from a digital video recorder, the picture will look jerky because frames have been left out. 3. According to the National Electrical Code®, Coaxial cables entering buildings from underground, can be run in the same raceway as Class 1 conductors with not separation requirements. 4. A Vidicon camera should be used in environments where there is bright, consistent light. 5. A CCD camera can provide a full-resolution picture requiring less light than a tube camera
A DCE whose basic function is to modulate and demodulate is called a
A) digital terminal equipment B) modem C) bandwidth expander D) frequency shift keyer
Eight resistances are connected in series as shown. The unit of measure for resistance is the ohm. The resistance in a series circuit is the sum of all resistances in that circuit. Find the total amount of resistance in the circuit.
A. 
B. 
C. 
D. 