Multilayer printed circuit board repair is the responsibility of what 2M repair technician?

Multilayer printed circuit board repair is the responsibility of  what 2M repair technician?
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1 Answer

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Microminiature repair technician.
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Related questions

What is one of the major disadvantages of multilayer printed circuit boards?

Description : What is one of the major disadvantages of multilayer printed circuit boards?

Last Answer : Difficulty of repair of internal connections.

Name the three methods of interconnecting components in multilayer printed circuit boards.

Description : Name the three methods of interconnecting components in multilayer printed circuit boards.

Last Answer : Clearance hole, plated-through hole, and layer build-up

To perform microminiature component repair, a 2M technician must be currently certified in what area?

Description : To perform microminiature component repair, a 2M technician must be currently certified in what area?

Last Answer : Microminiature component repair.

When does most printed circuit board damage occur?

Description : When does most printed circuit board damage occur?

Last Answer : During disassembly or repair.

List the three groups of test equipment used for fault isolation in 2M repair.

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)

Training requirements for (2M) repair personnel were developed under guidelines established by what organization?

Description : Training requirements for (2M) repair personnel were developed under guidelines established by what organization?

Last Answer : Chief of Naval Operations (CNO).

What is the major disadvantage of printed circuit boards?

Description : What is the major disadvantage of printed circuit boards?

Last Answer : Components soldered in place.

List the major advantages of printed circuit boards.

Description : List the major advantages of printed circuit boards.

Last Answer : Eliminate heavy chassis and point-to-point wiring

What is the main printed circuit board of a computer called ?

Last Answer : The main printed circuit board of a computer is called mother board.

To avoid damaging the components of a printed circuit board when testing it with a DC volt-ohmmeter, you should _______. A. ground the board B. avoid reversing the polarity of the leads C. isolate sensitive components with heat sinks D. all of the above

Description : To avoid damaging the components of a printed circuit board when testing it with a DC volt-ohmmeter, you should _______. A. ground the board B. avoid reversing the polarity of the leads C. isolate sensitive components with heat sinks D. all of the above

Last Answer : Answer: B

When soldering a printed circuit board component, you should be careful to prevent damage by _________. A. quickly heating the joints, using a high wattage iron B. using the soldering iron tip sparingly C. using only acid cord solder D. applying mechanical pressure to the joints being soldered

Description : When soldering a printed circuit board component, you should be careful to prevent damage by _________. A. quickly heating the joints, using a high wattage iron B. using the soldering iron tip sparingly C. using only acid cord solder D. applying mechanical pressure to the joints being soldered

Last Answer : Answer: B

Why is it a poor practice to use a high wattage soldering iron when soldering or desoldering components on a printed circuit board? A. The circuit board will blister and warp. B. The foil wire bonded to the board may come loosened from the board. C. The circuit board has a low melting temperature. D. The solder is kept to a dull heat dissipating finish.

Description : Why is it a poor practice to use a high wattage soldering iron when soldering or desoldering components on a printed circuit board? A. The circuit board will blister and warp. B. The foil wire bonded ... board has a low melting temperature. D. The solder is kept to a dull heat dissipating finish.

Last Answer : Answer: B

In electronic circuits, DC voltages can be positive (+) or negative (-) when measured with respect to the _________. A. printed circuit board 'common' trace B. chassis, console frame or hull 'ground' C. analogue or digital circuitry 'common' bus D. all of the above

Description : In electronic circuits, DC voltages can be positive (+) or negative (-) when measured with respect to the _________. A. printed circuit board 'common' trace B. chassis, console frame or hull 'ground' C. analogue or digital circuitry 'common' bus D. all of the above

Last Answer : Answer: D

In electronic circuitry, the abbreviation 'PCB' commonly means ______________. A. pulse coded binary B. printed circuit board C. poly-coated braid D. personal computer bits

Description : In electronic circuitry, the abbreviation 'PCB' commonly means ______________. A. pulse coded binary B. printed circuit board C. poly-coated braid D. personal computer bits

Last Answer : Answer: B

Tightly knit metal braid wire can be used with a printed circuit board when ___________. A. conductor flexibility is required B. desoldering components in the circuit C. electrically produced magnetic fluxes would cause inaccuracies in adjacent components D. reactance in the circuit must be kept to a minimum

Description : Tightly knit metal braid wire can be used with a printed circuit board when ___________. A. conductor flexibility is required B. desoldering components in the circuit C. electrically produced magnetic ... cause inaccuracies in adjacent components D. reactance in the circuit must be kept to a minimum

Last Answer : Answer: B

PCB stands for: a) Process Control Block b) Printed Circuit Board c) Both of The Above d) None of The Above

Description : PCB stands for: a) Process Control Block b) Printed Circuit Board c) Both of The Above d) None of The Above

Last Answer : c) Both of The Above

Gram negative organisms are largely insensitive to benzyl penicillin because: A. They produce large quantities of penicillinase B. They do not utilise D-alanine whose incorporation in the cell wall is inhibited by benzylpenicillin C. Benzyl penicillin is not able to penetrate deeper into the lipoprotein-peptidoglycan multilayer cell wall of gram negative bacteria D. Both ‘A’ and ‘B’ are correct

Description : Gram negative organisms are largely insensitive to benzyl penicillin because: A. They produce large quantities of penicillinase B. They do not utilise D-alanine whose incorporation in the cell wall is inhibited ... multilayer cell wall of gram negative bacteria D. Both A' and B' are correct

Last Answer : . Benzyl penicillin is not able to penetrate deeper into the lipoprotein-peptidoglycan multilayer cell wall of gram negative bacteria

What is multilayer feed forward neural networks?

Description : What is multilayer feed forward neural networks?

Last Answer : It consists of many hidden units. Each hidden unit act as a perceptron that represents a soft threshold functions in the input space. Output unit act as a soft threshold linear combination of several such functions.

Which of the following neural networks uses supervised learning? (A) Multilayer perceptron (B) Self organizing feature map (C) Hopfield network (1) (A) only (2) (B) only (3) (A) and (B) only (4) (A) and (C) only

Description : Which of the following neural networks uses supervised learning? (A) Multilayer perceptron (B) Self organizing feature map (C) Hopfield network (1) (A) only (2) (B) only (3) (A) and (B) only (4) (A) and (C) only

Last Answer : (1) (A) only

What agencies provide training, tools, equipment, and certification of the 2M system?

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)

What term is used to identify the procedure of connecting one side of a circuit board with the other?

Description : What term is used to identify the procedure of connecting one side of a circuit board with the other?

Last Answer : Interfacial connections.

To what standards should a technician restore electronic assemblies?

Description : To what standards should a technician restore electronic assemblies?

Last Answer : Manufacturer's standards.

The winch shown in the illustration operates in any of the positions with the master switch in the 'lower' direction, but will not 'hoist' in any of the master switch hoist positions. Which of the listed faults could be the cause? EL-0102 A. Master switch contact 'MS3' may have defective springs. B. Contactor '3M' coil could have an open winding. C. Contact '2M' in the power circuit may be badly corroded. D. Series relay 'FR' may be open.

Description : The winch shown in the illustration operates in any of the positions with the master switch in the 'lower' direction, but will not 'hoist' in any of the master switch hoist positions. Which of the listed faults ... '2M' in the power circuit may be badly corroded. D. Series relay 'FR' may be open.

Last Answer : Answer: A

PC Repair Technician ?

Description : PC Repair Technician ?

Last Answer : form_title= PC Repair Technician form_header= Hire a trained technician to fix your computer woes! Do you want a technician to install any special software?*= () Yes () No () Not Sure What kind of computer needs repairing?*= _ [50] Please describe the problem in detail.* _ [100]

How to find a repair technician for refrigeration equipment?

Description : How to find a repair technician for refrigeration equipment?

Last Answer : Very often household appliances bring us a lot of inconvenience when they fail. Sometimes you don't even expect this, but only a few minutes and you can observe a puddle on the floor, suspicious ... to weigh all the consequences and understand how safe this technique is for the health of the family.

Convening meetings of a company is the responsibility of the– (A) Chairman, Board of Directors (B) Managing Director (C) Company Secretary (D) General Manager

Description : Convening meetings of a company is the responsibility of the– (A) Chairman, Board of Directors (B) Managing Director (C) Company Secretary (D) General Manager

Last Answer : Answer: Company Secretary

Which one of the following is a responsibility of the project steering group/board? a. To identify potential problems for the project team to solve. b. To provide strategic direction and guidance to the sponsor. c. To manage the project team in all daily activities. d. To receive and consider daily reports from team members.

Description : Which one of the following is a responsibility of the project steering group/board? a. To identify potential problems for the project team to solve. b. To provide strategic direction and guidance ... project team in all daily activities. d. To receive and consider daily reports from team members.

Last Answer : b. To provide strategic direction and guidance to the sponsor.

Which one of the following is a responsibility of the project steering group/board? a. To identify potential problems for the project team to solve. b. To provide strategic direction and guidance to the sponsor. c. To manage the project team in all daily activities. d. To receive and consider daily reports from team members.

Description : Which one of the following is a responsibility of the project steering group/board?  a. To identify potential problems for the project team to solve.  b. To provide strategic direction and ... project team in all daily activities. d. To receive and consider daily reports from team members.

Last Answer : b. To provide strategic direction and guidance to the sponsor.

Which of the following has the primary responsibility for the fairness of the representations made in the financial statements? a. Audit committee b. Client's management c. Independent auditor d. Board of Accountancy

Description : Which of the following has the primary responsibility for the fairness of the representations made in the financial statements? a. Audit committee b. Client's management c. Independent auditor d. Board of Accountancy

Last Answer : Client's management

When troubleshooting a console circuit card suspected of being faulty, first check operating voltages, clean the card and then _________________. A. make sure wired connections and push-on connectors are tight B. test each resistor and capacitor on the card with an ohmmeter C. check the continuity of all printed circuit traces with an ohmmeter D. measure the gain of each transistor or integrated circuit

Description : When troubleshooting a console circuit card suspected of being faulty, first check operating voltages, clean the card and then _________________. A. make sure wired connections and push-on connectors ... circuit traces with an ohmmeter D. measure the gain of each transistor or integrated circuit

Last Answer : Answer: A

What type of service is NOT provided by the circuit shown in the illustration? EL-0094 A. Logging of engine order signals from the bridge. B. Printed record of alarms as they occur. C. Visual metering of temperature and pressure conditions. D. Periodic recording of pressure and temperature conditions.

Description : What type of service is NOT provided by the circuit shown in the illustration? EL-0094 A. Logging of engine order signals from the bridge. B. Printed record of alarms as they ... . Visual metering of temperature and pressure conditions. D. Periodic recording of pressure and temperature conditions.

Last Answer : Answer: A

How is board damage caused by technicians?

Description : How is board damage caused by technicians?

Last Answer : Repairs by untrained personnel and technicians using improper tools.

How do you prevent excessive heat buildup on an area of a board when soldering multilead components?

Description : How do you prevent excessive heat buildup on an area of a board when soldering multilead components?

Last Answer : Use a skipping pattern

When a lead is soldered to a pad without passing through the board, it is known as what type of termination?

Description : When a lead is soldered to a pad without passing through the board, it is known as what type of termination?

Last Answer : On-the-board termination.

Modules or submodules attached to a mother board are what packaging level?

Description : Modules or submodules attached to a mother board are what packaging level?

Last Answer : Level I.

List five precautions to take when installing fiber optic systems on board naval ships.

Description : List five precautions to take when installing fiber optic systems on board naval ships.

Last Answer : a. Never bend an optical fiber or cable at a radius of curvature less than the minimum bend radius. b. Never pull fiber optic cables tight or fasten them over or through sharp corners or ... the hardware. e. Allow only trained, authorized personnel to install or repair fiber optic systems.

Solder used in electronic repair is normally an alloy of what two elements? Solder used in electronic repair is normally an alloy of what two elements?

Description : Solder used in electronic repair is normally an alloy of what two elements?

Last Answer : Tin and lead.

Stereoscopic-zoom microscopes and precision drill presses are normally associated with what type of repair station?

Description : Stereoscopic-zoom microscopes and precision drill presses are normally associated with what type of repair station?

Last Answer : Microminiature repair station.

What are the two final steps of any repair?

Description : What are the two final steps of any repair?

Last Answer : Inspect and test.

Why should the coating material be replaced once the required repair has been completed?

Description : Why should the coating material be replaced once the required repair has been completed?

Last Answer : To ensure protective characteristics are maintained

Why are most ships limited in their ability to stock replacement modules for repair of electronic equipment?

Description : Why are most ships limited in their ability to stock replacement modules for repair of electronic equipment?

Last Answer : Lack of adequate storage space.

A man lifts a stone weighting 300 g from the ground to a height of 2m and throws it horizontally with a velocity of 6 m/sec. The work done by the man is a.7.686 J b.11.286 J c.5.886 J d.8.343 J e.Tapered bearing

Description : A man lifts a stone weighting 300 g from the ground to a height of 2m and throws it horizontally with a velocity of 6 m/sec. The work done by the man is a.7.686 J b.11.286 J c.5.886 J d.8.343 J e.Tapered bearing

Last Answer : b. 11.286 J

simplify (3n – 2m)2 = ? -General Knowledge

Description : simplify (3n – 2m)2 = ? -General Knowledge

Last Answer : (3n - 2m)^2 = 9n^2 - 12mn + 4m^2

If (log x)/(l + m - 2n) = (log y)/(m + n - 2l) = (log z)/(n + l - 2m), then xyz is equal to : -Maths 9th

Description : If (log x)/(l + m - 2n) = (log y)/(m + n - 2l) = (log z)/(n + l - 2m), then xyz is equal to : -Maths 9th

Last Answer : Let l+m−2nlogx​=m+n−2llogy​=n+l−2mlogz​=k(say) So, we get logx=k(l+m−2n) ....... (i) logy=k(m+n−2l) ....... (ii) logz=k(n+l−2m) ....... (iii) ∴logx+logy+logz=k(l+m−2n)+k(m+n−2l)+k(n+l−2m) ⇒logx+logy+logz=kl+km−2kn+km+kn−2kl+kn+kl−2km ⇒log(xyz)=0 ⇒logxyz=log1 ⇒xyz=1

If (log x)/(l + m - 2n) = (log y)/(m + n - 2l) = (log z)/(n + l - 2m), then xyz is equal to : -Maths 9th

Description : If (log x)/(l + m - 2n) = (log y)/(m + n - 2l) = (log z)/(n + l - 2m), then xyz is equal to : -Maths 9th

Last Answer : (b) 1Let \(rac{ ext{log}\,x}{l+m-2n}\) = \(rac{ ext{log}\,y}{m+n-2l}\) = \(rac{ ext{log}\,z}{n+l-2m}\) = k. Thenlog x = k(l + m – 2n), log y = k(m + n – 2l); log z = k(n + l – 2m) ⇒ log x + log y + log z = k(l + m – 2n) + k(m + n – 2l) + k(n + l – 2m)⇒ log(xyz) = 0 ⇒ log(xyz) = log 1 ⇒ xyz = 1.

If one roots of the equation `x^(2) - mx + n = 0` is twice the other root, then show that `2m^(2) = 9pi`.

Description : If one roots of the equation `x^(2) - mx + n = 0` is twice the other root, then show that `2m^(2) = 9pi`.

Last Answer : If one roots of the equation `x^(2) - mx + n = 0` is twice the other root, then show that `2m^(2) = 9pi`.

If `(m + 2) sintheta + (2m-1) costheta = 2m+1`, then

Description : If `(m + 2) sintheta + (2m-1) costheta = 2m+1`, then

Last Answer : If `(m + 2) sintheta + (2m-1) costheta = 2m+1`, then A. `tantheta=(3)/(4)` B. `tantheta=(2m)/(m^(2 ... `tantheta=(2m)/(m^(2)-1)` D. `tantheta=(4)/(3)`

A car moving with a speed of 40 km/h can be stopped by applying brakes after at least 2m. If the same car is moving with a speed of 80 km/h., what is

Description : A car moving with a speed of 40 km/h can be stopped by applying brakes after at least 2m. If the same car is moving with a speed of 80 km/h., what is

Last Answer : A car moving with a speed of 40 km/h can be stopped by applying brakes after at least 2m. If the same car is moving ... A. 2 m B. 4 m C. 6 m D. 8 m

Solve : `2m + 5 gt 9 - 4m, m in Q`

Description : Solve : `2m + 5 gt 9 - 4m, m in Q`

Last Answer : Solve : `2m + 5 gt 9 - 4m, m in Q`