MCQ » Mobile Technology Set 2

worms

virus

botnets

programs

Settings faults

Hardware faults

Software faults

All of the above

insulated and non-insulated

Soldering ,Desoldering

Availability,Suitability

All of the Above

SIM card section,Memory card section

Ear Speaker Section,Speaker/Ringer Section,Key Backlight Section,LCD Backlight Section

Vibrator Motor Section,Network Section,Battery Charging Section,FM Radio Section,Bluetooth Section,Hands free (Earphone) Section

All of the above

excess temperature, excess current or voltage, ionizing radiation,

mechanical shock, stress or impact, contamination,

short circuits, imperfect connections, poor insulation or wiring caused by grounding

All of the above

The cold testing method ,The hot testing method

Soldering ,Desoldering

insulated and non-insulated

All of the Above

LCD Backlight in mobile cell phones is made according to the series circuit. A Boost Voltage Generator section is built for the supply of high voltage (10 to 18V) for the functioning of the LCD LED. Boost coil, Boost Volt Driver IC, Rectifier Diode are present in this section

Interface section is directly connected with the CPU in most mobile cell phones

LED Lights are connected according to the parallel circuit in the key backlight section. Anode ends of all the LEDS are connected to each other and all the cathode ends to each other

None of Above

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Soldering is a process in which two or more metal items are joined together by melting and flowing a filler metal into the joint

Soldering is the removal of solder and components from a printed circuit board for troubleshooting, repair, replacement, and salvage

Soldering is a process to Use a solder wick (finely braided copper) to wick away excess solder from a de-soldered connection

Soldering is a process to Continue heating and apply a few millimeters of solder Remove the iron and allow the solder joint to cool naturally

Switch off the phone ,Remove the battery cover Remove the battery, SIM card memory card (if any)

Remove all the screws from the phone,Lift back the cover with the help of a flat screwdriver,Remove the strips (buzzer strip, display, camera, volume and speaker button strips)

Remove the antennae wire from the outside 8.Remove the motherboard and vibrator

All of the above

A fault is temporarily complete a circuit

A fault is a defect (a failure in a circuit) or an electronic device

A fault is destroyed a circuit

A fault is permanent failure a circuit

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Palm

Windows

Mango

Android

occur due to problems with software

occur due to hardware malfunctioning

occur due to wrong/invalid settings

All of the above

Use a solder wick (finely braided copper) to wick away excess solder from a de-soldered connection

Apply the solder wick and use the soldering iron to the de-soldered connection. the solder wick will draw the excess solder off the PCB pad

both a and b

None of Above

LED Lights are connected according to the parallel circuit in the key backlight section. Anode ends of all the LEDS are connected to each other and all the cathode ends to each other

LCD Backlight in mobile cell phones is made according to the series circuit. A Boost Voltage Generator section is built for the supply of high voltage (10 to 18V) for the functioning of the LCD LED. Boost coil, Boost Volt Driver IC, Rectifier Diode are present in this section

Interface section is directly connected with the CPU in most mobile cell phones

All of the above

Soldering ,Desoldering

Testing using a multimeter

Jumper setting

All of the above

to complete a circuit

to heat and apply a few millimeters of solder Remove the iron and allow the solder joint to cool naturally

to temporarily complete a circuit or to bypass a break in a circuit by making a connection from one point to another

All of the Above

Prepare theSoldering Iron, Solder paste,Long Nose Pliers,PCB holder,Electronic Components

Plug and pre-heat the soldering iron,Heat both items at the same time by applying the soldering iron to the copper pad and the component lead

Continue heating and apply a few millimeters of solder Remove the iron and allow the solder joint to cool naturally

It only takes a second or two to make the perfect joint, which should appear shiny

Bad conductor

Good conductor

both a and b

None of Above

Interface section is directly connected with the CPU in most mobile cell phones

LCD Backlight in mobile cell phones is made according to the series circuit. A Boost Voltage Generator section is built for the supply of high voltage (10 to 18V) for the functioning of the LCD LED. Boost coil, Boost Volt Driver IC, Rectifier Diode are present in this section

LED Lights are connected according to the parallel circuit in the key backlight section. Anode ends of all the LEDS are connected to each other and all the cathode ends to each other

All of the above

Assemble is to fit together all the separate pieces in order to form one whole

Assemble is to take something apart or to break it down into pieces

Both a & b

None of the above

Fix the vibrator strips of speaker and volume button,Fix the motherboard,Connect the antenna with wire

Place the camera and connect it,Place the buzzer,Put the camera cover

Make sure that the LCD is working before you place the screencover,Put battery and battery cover

All of the above

Desoldering is the removal of solder and components from a printed circuit board for troubleshooting, repair, replacement, and salvage

Desoldering is a process in which two or more metal items are joined together by melting and flowing a filler metal into the joint

Desoldering is a process to Use a solder wick (finely braided copper) to wick away excess solder from a de-soldered connection

Desoldering is a process to Continue heating and apply a few millimeters of solder Remove the iron and allow the solder joint to cool naturally

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