2-22.   Which phase uses either reflected energy or received energy emitted from the target to detect a target? 1.   First 2.   Second 3.   Third 4.   Fourth 2-23.   In tracking a target, a collection of motors and position-sensing devices called a servo system helps to successfully engage a target.   The operation of such a system is based on what inherent concept? 1.   Error reduction 2.   Feedback 3.   Zeroing 4.   Rate reduction 2-24.   What is the definition of “system error”? 1.   The difference between where the sensor is located and where the target is going 2.   The difference between where the target is pointing and where the target is actually going 3.   The difference between where the sensor is pointing and where the sensor is located 4.   The difference between where the sensor is pointing and where the target is actually located 2-25.   What devices are used in servo systems to detect the position of and to control the movement of power drives? 1.   Gun mounts 2.   Missile launchers 3.   Optical encoder 4.   Radar antennas 2-26.   The effective engagement and neutralization of a target requires that a destructive mechanism, such as a missile warhead, be delivered to the vicinity of the target.   Which of the following factors should be considered in the design of an effective destructive mechanism? 1.   Propulsion system 2.   Fuzing mechanism 3.   Warhead design 4.   All of the above 2-27.   What is at the functional center of every weapon system? 1.   A human being 2.   A complex computer 3.   A large RF power supply 4.   A planned maintenance system 2-28.   What is the purpose of your command’s bombarding you with safety slogans, rules, and procedures? 1.   To keep you alive and well 2.   To improve your morale 3.   To keep you busy 4.   To give you something to do 2-29.   Being safety conscious means to approach every job from a safety point of view. 1.   True 2.   False 2-30.   Radio Frequency Radiation (RFR) is one of the hazards associated with radar operation. Which of the following areas around a radar antenna should you consider to be an RFR hazard? 1.   The front 2.   The sides 3.   The rear 4.   All of the above 2-31.   If you suspect any injury or excessive exposure to radiation which of the following individuals should you contact? 1.   Your leading petty officer 2.   Your ship’s doctor or corpsman 3.   Your division chief 4.   All of the above 2-32.   Whenever you work around radar equipment, you should observe which of the following safety precautions? 1.   Do not inspect   feedhorns when they are emitting RFR 2.   Observe all RADHAZ warning signs 3.   Ensure that radiation hazard warning signs are available and used 4.   All of the above 9