Fabrication of FET MCQ [Free PDF] – Objective Question Answer for Fabrication of FET Quiz

11. What is the general information specified in ordering an IC?

A. Temperature range
B. Device type
C. Package type
D. All of the mentioned

Answer: D

Generally, in order for an IC, all three pieces of information must be specified.

 

12. Find the ordering information for µA741TC.

A. Sprague 741 DIP with Industrial temperature range
B. Intersil 741 DIP with a commercial temperature range
C. Fairchilds 741 DIP with a commercial temperature range
D. Texas instrument 741 metal can with Industrial temperature range

Answer: C

Here “µA” represents the identifying initials used by Fairchild,

T represents the Mini DIP package and C represents the Commercial temperature range.

 

13. How a Motorola IC with plastic DIP and commercial temperature range is ordered?

A. ICLxxxP -> 0o to 75oc
B. CAxxE -> -55o to +125oc
C. LMxxxxA -> -40o to+85oc
D. MCxxxP -> 0o to 70oc

Answer: D

The ordering format for a typical Motorola IC is,

MCxxxx –> Device type

P –> Package type(Plastic DIP)

0o to 70oc –> Temperature range (Commercial).

 

14. What does the 1-2-3 numbering system used in National Semiconductor IC denote?

A. Validity in years
B. Temperature range
C. Package type
D. Ordering information

Answer: C

In National linear ICs, a 1-2-3 numbering system is used to represent the temperature range.

 

15. How does an industrial temperature range device in National Semiconductor IC represented?

A. LM305
B. LM101
C. LM201
D. All of the mentioned

Answer: C

In LM201, the number 2 denotes an industrial temperature range device.

 

16. Use the device identification method to find the IC of the Fairchild chip manufactured in the year 1980.

A. 80
B. 20
C. 70
D. 60

Answer: B

In the chip, 80 represents the manufactured year


17. Dual-In-Line pack is considered to be suitable for mounting because,

A. Easy to handle
B. Fits mounting hardware
C. Inexpensive
D. All of the mentioned

Answer: C

The DIP pack is easy to handle, fits standard mounting hardware, and is inexpensive when molded on plastic.

 

18. What is the use of notch and dot in DIP ICs?

A. Determine the pin configuration
B. Designed to represent device type
C. Represent property of IC
D. Find the pin number

Answer: D

A notch and dot as viewed from the top view are used to find the pin terminal. The terminals are numbered counterclockwise.

 

19. How an eight-pin Dual-In-Line Package is shortly named

A. 8p DIP
B. Maxi DIP
C. Mini DIP
D. ES DIP

Answer: C

An eight-pin Dual-In-Line Package is called Mini DIP as it is used for devices with a minimum number of inputs and outputs.

 

20. Which package type is chosen for military purposes?

A. Ceramic DIP
B. Plat pack
C. Metal can pack
D. Plastic DIP

Answer: A

Ceramic DIP can be used for high-temperature and high-performance equipment.

 

21. A Dual-In-Line Package is usually referred to as

A. DIPn
B. nDIP
C. DIPn
D. All of the mentioned

Answer: A

A Dual-In-Line Package is usually referred to as DIPn. Where, n represent the number of pin terminals in the IC.

 

22. Which type of DIP IC dissipates more heat?

A. Ceramic DIP
B. Plastic DIP
C. Metal DIP
D. None of the mentioned

Answer: B

Plastic DIPs are cheaper than metal or ceramic DIPs but are not regarded as satisfactory in extremes of temperature.

 

23. Choose the type of package used for the Airborne application?

A. DIP package
B. Metal can package
C. Flatpack
D. Transistor pack

Answer: C

The flat pack is more reliable and lighter than a comparable DIP package and therefore is suited for the airborne application.

 

24. How a choice is made if all three package types are available?

A. Based on cost
B. Based on fabrication
C. Based on Experimentation usage
D. All of the mentioned

Answer: D

When all three packages are available for a specific application, the choice can be made based on the relative cost, ease of fabrication, and breadboarding of the IC.

 

25. How many temperature grades are available for IC?

A. Two
B. Three
C. Four
D. Five

Answer: B

All ICs manufactured fall into one of the three basic temperature grades. They are military, industrial, and commercial temperature ranges.

 

26. ICs used for industrial applications will have a temperature range from

A. -55o to +85oc
B. 90o to 155oc
C. 10o to 100oc
D. -20o to +85oc

Answer: D

The industrial temperature range is from -20o to +85oc.

 

27. Find the types of temperature range used for an IC, which can be used only up to 75oc?

A. Industrial temperature range
B. Commercial temperature range
C. Military temperature range
D. All of the mentioned

Answer: B

Commercial grade IC can be used up to 75oc. It has the worst tolerance among the three types and is the cheapest available IC.

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