Repair Technician Interview Questions and Answers

1-phase and 3-phase are types of electrical power supply. AC-DC conversion involves changing the direction of current flow.

• 1-phase power supply has a single alternating current waveform, while 3-phase power supply has three alternating current waveforms that are 120 degrees out of phase with each other.

• AC-DC conversion involves using a rectifier to change the direction of current flow from alternating to direct.

• Examples of AC-DC devices include power supplies for electronic d...read more

The solder wire ratio and temperature of iron are crucial in rework. Basic tools include soldering iron, solder wire, flux, desoldering pump, and tweezers.

• The ideal solder wire ratio is 60/40 or 63/37 (tin/lead).

• The temperature of the iron should be set according to the type of component being soldered.

• Basic tools used in rework include soldering iron, solder wire, flux, desoldering pump, and tweezers.

• Flux is used to clean the surface and improve the flow of solder.

• Desolderin...read more

I have experience working on changing gear mechanics and all elevator parts.

• Proficient in diagnosing and repairing elevator malfunctions

• Skilled in replacing and installing elevator parts

• Familiar with safety regulations and protocols for elevator maintenance

• Experience working with various types of elevators, including hydraulic and traction systems

I approach problems systematically, identify the root cause, and use my technical knowledge and experience to find a solution.

• Analyze the problem and gather all relevant information

• Identify the root cause of the problem

• Use technical knowledge and experience to develop a solution

• Test the solution to ensure it is effective

• Communicate the solution to stakeholders

CRO is used to display voltage signals in the time domain, while Spectrum analyser is used to display frequency signals in the frequency domain.

• CRO stands for Cathode Ray Oscilloscope, used to display voltage signals in the time domain

• Spectrum analyser is used to display frequency signals in the frequency domain

• CRO is used for analyzing time-varying signals, while Spectrum analyser is used for analyzing frequency components of a signal

• CRO is commonly used in electronics and t...read more

There are two main types of current: direct current (DC) and alternating current (AC).

• Direct current (DC) flows in one direction and has a constant magnitude.

• Alternating current (AC) periodically changes direction and magnitude.

• DC is commonly used in batteries and electronic devices.

• AC is used in household electrical systems and power grids.