Description : What is the name given to the synchro system that transmits data at two different speeds?
Last Answer : . A dual or double-speed synchro system.
Description : What determines whether a differential synchro adds or subtracts?
Last Answer : The way the differential synchro is connected in a system is the deciding factor on whether the unit adds or subtracts its inputs.
Description : What is the main reason for using a multispeed synchro system instead of a single-speed synchro system?
Last Answer : Greater accuracy without the loss of self-synchronous operation.
Description : What factor determines the difference between the transmitted frequency and the received frequency in an fm transmitter?
Last Answer : Travel time.
Description : Name two types of trouble you would expect to find in a newly installed synchro system.
Last Answer : Improper wiring and misalignment.
Description : What two components make up a simple synchro transmission system?
Last Answer : A synchro transmitter and a synchro receiver.
Description : . What type of synchro system is used to transmit very large quantities?
Last Answer : A tri-speed synchro system.
Description : What is the most probable cause of trouble in a synchro system that has all of its receivers reading incorrectly?
Last Answer : The transmitter or main bus.
Description : What type of indicator is usually placed in the stator circuit of a torque synchro system?
Last Answer : An overload indicator.
Description : When you zero a multispeed synchro system which synchro should you zero first?
Last Answer : The coarse synchro.
Description : In a control synchro system, when is the output of the CT reduced to zero?
Last Answer : When the CX and CT rotors are in correspondence.
Description : What leads in a simple synchro system are connected to the ac power line?
Last Answer : The rotor leads.
Description : In a TDX system with standard synchro connections, the TX rotor is at 120º and the TDX rotor is at 40º. What position will the TR indicate?
Last Answer : . 80º.
Description : What is the primary purpose of a synchro system?
Last Answer : Precise and rapid transmission of data between equipment and stations.
Description : What are the two major components of a synchro?
Last Answer : The rotor and the stator.
Description : Which of the two synchro designation codes is indicated by 5DG on a synchro nameplate?
Last Answer : The Navy prestandard designation code.
Description : Name the two general classifications of synchro systems
Last Answer : Torque and control.
Description : What is the reference point for alignment of all synchro units?
Last Answer : The voltmeter method.
Description : What precaution should you take when substituting a synchro tester in a circuit for a transmitter?
Last Answer : Use only one receiver so as not to overload the tester.
Description : What should you do with a synchro that has a bad set of bearings?
Last Answer : Replace it.
Description : When you zero a synchro with a synchro tester, what is indicated by a jump in the synchro tester's dial when the S1 and S3 leads are momentarily shorted?
Last Answer : The synchro under test is not on electrical zero.
Description : What method of zeroing a synchro is perhaps the fastest but NOT necessarily the most accurate?
Last Answer : . The electrical lock method.
Description : Why should a synchro be rechecked for zero after it is clamped down?
Last Answer : To ensure that it did not move off zero while it was being clamped.
Description : When is a synchro receiver (TR) properly zeroed?
Last Answer : A TR is zeroed when electrical zero voltages exist across its stator windings at the same time its rotor is on zero or on its mechanical reference position.
Description : What is the purpose of the coarse setting of a synchro?
Last Answer : .It ensures the synchro is on 0º, not 180º.
Description : Why are synchro capacitors placed physically close to differentials transmitters and CTs?
Last Answer : To keep the connections as short as possible in order to maintain system.
Description : How are synchro capacitors connected in a circuit?
Last Answer : They are delta-connected across the stator windings.
Description : What type of current is eliminated by synchro capacitors?
Last Answer : Magnetizing current.
Description : What type of synchros usually require the use of synchro capacitors?
Last Answer : TDXs, CDXs, and Cts.
Description : What is the purpose of the synchro capacitor?
Last Answer : To improve overall synchro system accuracy by reducing stator currents.
Description : What type of synchro is used in systems requiring large amounts of power and a high degree of accuracy?
Last Answer : A control synchro.
Description : What method is used to prevent oscillations in large synchro units?
Last Answer : Mechanical damping.
Description : What is the physical difference between a synchro transmitter and a synchro receiver?
Last Answer : A synchro receiver uses some form of damping to retard excessive oscillations or spinning.
Description : Describe the zero-position of a synchro transmitter.
Last Answer : The transmitter is in its zero-position when the rotor is aligned with the S2 stator winding.
Description : When will a synchro generate more heat than it is designed to handle?
Last Answer : Synchros have one primary winding that can be turned through 360º and three secondary windings spaced 120º apart.
Description : What unit of measurement refers to the torque of a synchro transmitter
Last Answer : Ounce-inches.
Description : On the synchro schematic symbol, what indicates the angular displacement of the rotor?
Last Answer : . The position of the arrow.
Description : What does the code 26V-11TX4D mean on a synchro nameplate?
Last Answer : It is the third modification of a 26-volt 400-hertz (torque) synchro transmitter whose body diameter is between 1.01 and 1.10 inches
Description : What is the difference between a torque synchro and a control synchro?
Last Answer : A torque synchro is used for light loads and a control synchro is used in systems desired to move heavy loads.
Description : What determines the range of wavelengths over which meaningful data is obtained for calculating the chromatic dispersion?
Last Answer : The wavelength range of the optical source(s) used.
Description : On third generation computers, what results are gained by faster internal processing speeds?
Last Answer : Faster execution of instructions.
Description : Most Navy tty sets operate at what speeds?
Last Answer : 60, 75, or 100 wpm.
Description : Which computer has the faster calculating speeds, the variable-word-length or the fixed-word-length?
Last Answer : Fixed-word-length.
Description : How do dual-motor dual capstan drives maintain a constant tape tension while operating in either a forward or reverse direction?
Last Answer : Each capstan is driven by its own motor. It maintains tape tension by slowing down one of the motors. When the tape motion is reversed, the opposite motor is slowed down.
Description : What determines the phase relationship between the voltages in a two-phase ac generator?
Last Answer : Placement of armature coils.
Description : What determines the frequency, bandwidth, and power handling capability of a waveguide probe?
Last Answer : Size and shape
Description : A refracted wave occurs when a wave passes from one medium into another medium. What determines the angle of refraction?
Last Answer : The density of the two mediums, and the velocity of the waves.
Description : What determines whether these components are considered series or shunt?
Last Answer : . The relationship of the components to the output-signal path.
Description : Which quantity (voltage or current) determines the intensity of an electrical shock?
Last Answer : Current.
Description : the voltage drop across RS and R1 determines the amount of base-emitter ____ for Q1.
Last Answer : Bias.