Description : When working on electrical circuits containing large capacitors, in addition to deenergizing the circuit, which of the listed precautions should also be taken? A. Keep all radio equipment ... capacitor insulation resistance. C. Ground the capacitor terminals. D. Check capacitor circuit polarity.
Last Answer : Answer: C
Description : When working on electrical equipment, why should you use only one hand?
Last Answer : . To minimize the probability of providing a path for current through your body.
Description : What are some examples of electrical equipment which use magnetism?
Last Answer : Motors, generators, speakers, computers, televisions, tape recorders, and many others
Description : What should you do if you become aware of a possible malfunction in a piece of electrical equipment?
Last Answer : You should immediately report this condition to a qualified technician
Description : What effect does an increase in capacitance have on a capacitor’s opposition to current flow?
Last Answer : Opposition to current flow decreases.
Description : What tool is used to de-energize capacitors in a circuit that has been disconnected from its power source?
Last Answer : Shorting probe.
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 : In a full-wave voltage doubler, are the capacitors connected in series or in parallel with the output load?
Last Answer : In parallel.
Description : Why is the use of large value capacitors in filter circuits discouraged?
Last Answer : Expense
Description : Which oscillator uses tapped capacitors for feedback?
Last Answer : Colpitts.
Description : Examine the three capacitors shown below. What is the capacitance of each?
Last Answer : a. 26µF or 260,00pF b. 630pF c. 9600pF
Description : Charged capacitors can kill. True or false?
Last Answer : True.
Description : In a substation the following equipment is not installed (a) exciters (b) series capacitors (c) shunt reactors (d) voltatre transformers
Last Answer : (a) exciters
Description : In the schematic of the electrical circuit shown in the illustration, what is the value of the total capacitance, when compared to the value of equal individual capacitors? EL-0038 A. Equal B. Half C. Double D. Squared
Description : Regarding the illustrated electrical schematic, 'S1-P', 'S1-Q', and 'S1-R' represent ____________. EL-0016 A. capacitors B. normally-closed contacts C. normally-open contacts D. normally-closed pushbutton switches
Description : What is the proper procedure for suppressing electrical noise in a mobile station? A. Apply shielding and filtering where necessary B. Insulate a all plain sheet metal surfaces from each other C. ... -static spray liberally to all nonmetallic D. Install filter capacitors in series with all dc wiring
Last Answer : A. Apply shielding and filtering where necessary
Description : Capacitors and inductors are commonly used in circuits. Capacitors store electrical energy in the electric field between their plates. How do inductors store energy?
Last Answer : ANSWER: IN A MAGNETIC FIELD SURROUNDING THE INDUCTOR
Description : When maintenance personnel are working on electrical equipment, all supply switches should be secured in the open position and tagged specifically by the _____________. A. watch engineer B. chief engineer or first assistant C. chief electrician D. person performing the repair
Last Answer : Answer: D
Description : Fixed capital investment of a chemical plant is the total amount of money needed to supply the necessary plant and manufacturing facilities plus the working capital for operation of the facilities. Which of ... (B) Equipment installation cost (C) Cost for piping (D) Equipment insulation cost
Last Answer : (D) Equipment insulation cost
Description : Before any work on electrical or electronic equipment is performed, which of the following precautions should be carried out? A. De-energize the applicable switchboard bus. B. Bypass the interlocks. C. ... supply circuit breaker in the open position. D. Station a man at the circuit supply switch.
Description : What precautions should you take when tying bundles containing coaxial cables?
Last Answer : Do not tie too tightly and use the proper type of tape.
Description : Microcircuit refers to any component containing what types of elements?
Last Answer : Integrated circuits.
Description : What safety actions does the nurse need to take for a patient on oxygen therapy who is undergoing magnetic resonance imaging (MRI)? a) Ensure that no patient care equipment containing metal enters the ... oxygen tanks) that contains metal or metal parts enters the room where the MRI is located.
Last Answer : a) Ensure that no patient care equipment containing metal enters the room where the MRI is located. For patient safety the nurse must make sure no patient care equipment (e.g., portable oxygen ... literally be pulled away with such great force that they can fly like projectiles towards the magnet.
Description : What type of maintenance involves isolating equipment troubles and replacing defective parts?
Last Answer : Corrective maintenance.
Description : What calibration label is used when actual measurement values must be known to use the test equipment?
Last Answer : CALIBRATED—REFER TO REPORT.
Description : What test equipment is designed to generate, modify, or measure a range of parameters of electronic functions of a specific nature required to test a single system or equipment?
Last Answer : Special-purpose electronic test equipment.
Description : Name the two classes of test equipment.
Last Answer : General-purpose electronic test equipment (GPETE) and special-purpose electronic test equipment (SPETE).
Description : What system is currently used by all branches of the military to identify test equipment?
Last Answer : Joint Electronics Type Designation System (JETDS).
Description : What type of equipment normally uses 26-volt 400-hertz synchros?
Last Answer : . Aircraft.
Description : What is the most common type of integrated circuit packaging found in military equipment?
Last Answer : DIPs (dual inline packages).
Description : What is a clock with regard to digital equipment?
Last Answer : A timing signal.
Description : In flowcharting, what method is used to represent different operations, data flow, equipment, and so forth?
Last Answer : Different shaped symbols.
Description : Where would you find the wire identification system for a specific piece of equipment?
Last Answer : In the technical manual for the equipment
Description : What procedure should you use when a power input to your equipment is missing?
Last Answer : Work backwards from the load to the source.
Description : When you are testing a piece of equipment for intermodulation distortion, what should the output of the equipment look like?
Last Answer : An exact reproduction of the input.
Description : What equipment uses a calibrated resonant circuit to measure frequency?
Last Answer : Wavemeter.
Description : What type(s) of flux should never be used on electronic equipment?
Last Answer : Chloride or (acid) and organic.
Description : NELAT and VAST are examples of what type of test equipment?
Last Answer : Off-line.
Description : What test equipment continuously monitors electronic systems?
Last Answer : On-line.
Description : List the three groups of test equipment used for fault isolation in 2M repair.
Last Answer : On-line, off-line, and General Purpose Electronic Test Equipment (GPETE)
Description : What agencies provide training, tools, equipment, and certification of the 2M system?
Last Answer : Naval Sea Systems Command (NAVSEASYSCOM) and Naval Air Systems Command (NAVAIRSYSCOM)
Description : In what publication are environmental requirements for equipment defined?
Last Answer : Procurement specifications.
Description : What equipment should you use to de-magnetize a magnetic tape transport?
Last Answer : A hand-held degausser.
Description : You plan to measure your tape recorder’s SNR. What test equipment will you need?
Last Answer : A VTVM and a signal generator.
Description : What type of equipment should you use to demagnetize your recorder's magnetic heads?
Last Answer : A hand-held degausser like the manual degaussers used for degaussing magnetic tape.
Description : What types of modulation are shipboard receive-only equipment designed to receive?
Last Answer : Fm or psk.