Experiment No.8.

Power Supply

  1. State the advantage and disadvantages of SMPS.
  2. State the factors that influence the quality of power for CPU.
  3. Give the function of FAN in an SMPS.
  4. What are the uses of the output voltages generated from an SMPS.
  5. Give the power requirements of the following PC devices and peripherals:

Sr.no.
1. / Motherboard
2. / Memory
3. / Expansion slots
4. / Floppy drive
5. / Hard disk drive
6. / CDROM drive
7. / Printer
8. / Scanner
9. / keyboard
10. / Mouse
  1. Differentiate between offline and online UPS.
  2. Give the advantages of UPS over Voltage stabilizer.
  3. Compare linear mode power supply and SMPS.
  4. What are the factors to be considered before choosing a power supply?
  5. What is the wattage of the current of 15A and voltage of 120V?
  6. State purpose of Invertors in SMPS
  7. Explain Online and Offline UPS with Block Diagram
  8. State Difference Between On and Off Lien UPS
  9. Why is an Input rectifier needed in SMPS
  10. Compare Linear and Switch mode Power Supply
  11. List 5 company manufacturing SMPS
  12. Why Torroidal(Inductance) Coil and Capacitors are used in Power Supply
  13. Give Specification of ATX Power Supply

Experiment Number – 9

1.State the Purpose of Diagnostic Software

2.Describe the meaning of word Debugging and Trouble Shooting

3.List 10 Software Name use for debugging and trouble shooting

4.Describe function in detail of

a. Norton Utility

b. PC tools

c. Checkit Pro

d. QAPLUS

e. Any one PC tune up Utility

5.What is POST? Describe it step with neat flowchart in Details.

6.State Difference between Diagnostic Software and Antivirus

7.Which are the problems Detected By POST

8.What are the five different ways to give error condition by the POST

9.State Limitation of

a. Norton Utility

b. PC tools

c. Checkit Pro

d. QAPLUS

10.Describe one Partition making Software like Partition Manager

Experiment No 10.

  1. When the PC does not recognise all the installed RAM, what are the three things that can be done?
  2. List three symptoms that might indicate that a virus is present.
  3. What are DLL files and why could they cause problems?
  4. What can you do to temporarily solve streaking or light printing on a LASER printer?
  5. Research the internet for freeware to save CMOS setup data to floppy disk. Document the detailed information about the same. Download the program and use it to save the setup data to disk.
  6. Research the internet for getting the latest information about POST beep codes and display the error messages for atleast two bios manufacturers. Document the same.
  7. Identify the display adapter installed on your pc by using the control panel and write all the available information.
  8. What are the three things you can do when you get poor printing quality on dot matrix printers.
  9. Name any two antivirus software packages. Why should you run a virus scan on the bootable disk that you can use for troubleshooting?
  10. Starting with the easiest procedures list five things to check if your PC does not boot.
  11. identify the type of display adapter installed in the PC using the windows control Panel and Write available information
  12. State the purpose of High level and Low level Formatting
  13. What is active and Passive preventive maintainence
  14. State difference between active and Passive preventive maintainence
  15. List hardware and software tools used for Both type of Maintainence