| 1. |
Which of the following is golden rule for interface design? |
| A. | place the user in control |
| B. | reduce the user’s memory load |
| C. | make the interface consistent |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: these golden rules actually form the basis for a set of user interface design principles that guide this important software design activity. | |
| 2. |
Which of the following is not a design principle that allow the user to maintain control? |
| A. | provide for flexible interaction |
| B. | allow user interaction to be interrupt-able and undo-able |
| C. | show technical internals from the casual user |
| D. | design for direct interaction with objects that appear on the screen |
| Answer» C. show technical internals from the casual user | |
| Explanation: the user interface should move the user into the virtual world of the application. | |
| 3. |
Which of the following is not a user interface design process? |
| A. | user, task, and environment analysis and modeling |
| B. | interface design |
| C. | knowledgeable, frequent users |
| D. | interface validation |
| Answer» C. knowledgeable, frequent users | |
| Explanation: these are the end user for whom the product is being built. | |
| 4. |
When users are involved in complex tasks, the demand on can be significant. |
| A. | short-term memory |
| B. | shortcuts |
| C. | objects that appear on the screen |
| D. | all of the mentioned |
| Answer» A. short-term memory | |
| Explanation: the interface should be designed to reduce the requirement to remember past actions and results. | |
| 5. |
Which of the following option is not considered by the Interface design? |
| A. | the design of interfaces between software components |
| B. | the design of interfaces between the software and human producers and consumers of information |
| C. | the design of the interface between two computers |
| D. | all of the mentioned |
| Answer» C. the design of the interface between two computers | |
| Explanation: none | |
| 6. |
A software might allow a user to interact via |
| A. | keyboard commands |
| B. | mouse movement |
| C. | voice recognition commands |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: all the mentioned input mediums are available today. | |
| 7. |
What establishes the profile of end-users of the system? |
| A. | design model |
| B. | user’s model |
| C. | mental image |
| D. | system image |
| Answer» B. user’s model | |
| Explanation: to build an effective user interface, all design should begin with an understanding of the intended users, including their profiles of their age, physical abilities, education, etc. | |
| 8. |
What combines the outward manifestation of the computer-based system , coupled with all supporting information that describe system syntax and semantics? |
| A. | mental image |
| B. | interface design |
| C. | system image |
| D. | interface validation |
| Answer» C. system image | |
| Explanation: when the system image and the system perception are coincident, users generally feel comfortable with the software and use it effectively. | |
| 9. |
Which of the following is used to access the database server at the time of executing the program and get the data from the server accordingly? |
| A. | embedded sql |
| B. | dynamic sql |
| C. | sql declarations |
| D. | sql data analysis |
| Answer» B. dynamic sql | |
| Explanation: embedded sql, the sql statements are identified at compile time using a preprocessor. the preprocessor submits the sql statements to the database system for | |
| 10. |
Which of the following header must be included in java program to establish database connectivity using JDBC ? |
| A. | import java.sql.*; |
| B. | import java.sql.odbc.jdbc.*; |
| C. | import java.jdbc.*; |
| D. | import java.sql.jdbc.*; |
| Answer» A. import java.sql.*; | |
| Explanation: the java program must import java.sql.*, which contains the interface definitions for the functionality provided by jdbc. | |
| 11. |
Which of the following invokes functions in sql? |
| A. | prepared statements |
| B. | connection statement |
| C. | callable statements |
| D. | all of the mentioned |
| Answer» C. callable statements | |
| Explanation: jdbc provides a callable statement interface that allows invocation of sql stored procedures and functions. | |
| 12. |
Which of the following function is used to find the column count of the particular resultset? |
| A. | getmetadata() |
| B. | metadata() |
| C. | getcolumn() |
| D. | get count() |
| Answer» A. getmetadata() | |
| Explanation: the interface resultset | |
| 13. |
Which of the following is a following statement is a prepared statements? |
| A. | insert into department values(?,?,?) |
| B. | insert into department values(x,x,x) |
| C. | sqlsetconnectoption(conn, sql autocommit, 0) |
| D. | sqltransact(conn, sql rollback) |
| Answer» A. insert into department values(?,?,?) | |
| Explanation: ? is used as a placeholder whose value can be provided later. | |
| 14. |
Which of the following is used as the embedded SQL in COBOL? |
| A. | exec sql <embedded sql statement >; |
| B. | exec sql <embedded sql statement > end-exec |
| C. | exec sql <embedded sql statement > |
| D. | exec sql <embedded sql statement > end exec; |
| Answer» B. exec sql <embedded sql statement > end-exec | |
|
Explanation: exec sql |
|
| 15. |
Which of the following is used to distinguish the variables in SQL from the host language variables? |
| A. | . |
| B. | – |
| C. | : |
| D. | , |
| Answer» B. – | |
| 16. |
Which of the following is used to access large objects from a database ? |
| A. | setblob() |
| B. | getblob() |
| C. | getclob() |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| Explanation: none. | |
| 17. |
Which of the following is not a source used in Mid Infrared Spectrophotometer? |
| A. | nernst glower |
| B. | high pressure mercury arc lamp |
| C. | globar |
| D. | nichrome wire |
| Answer» B. high pressure mercury arc lamp | |
| Explanation: high pressure mercury arc lamp is used as the source for far ir spectrophotometer. rest of the options are used as a source in mid infrared spectrophotometer. | |
| 18. |
Which of the following is the wave number of near infrared spectrometer? |
| A. | 4000 – 200 cm-1 |
| B. | 200 – 10 cm-1 |
| C. | 12500 – 4000 cm-1 |
| D. | 50 – 1000 cm-1 |
| Answer» C. 12500 – 4000 cm-1 | |
| Explanation: the wave number of near infrared spectrometer ranges between 12500 – 4000. wavenumber is the reciprocal of wavelength. | |
| 19. |
Which of the following options are correct in terms of wavelength for the different types of IR spectrometer? |
| A. | near ir: 0.8 – 2.5 mm |
| B. | mid ir: 0.8 – 2.5 mm |
| C. | far ir: 2.5 – 50 mm |
| D. | mid ir: 50 – 100 mm |
| Answer» A. near ir: 0.8 – 2.5 mm | |
| Explanation: wavelength of near ir is 0.8 – | |
| 20. |
Which of the following is not a composition of Nernst glower or Nernst filament? |
| A. | oxides of zirconium |
| B. | oxides of barium |
| C. | oxides of yitrium |
| D. | oxides of thorium |
| Answer» B. oxides of barium | |
| Explanation: oxides of barium is not present in nernst glower. they are constructed by fusing oxides of zirconium, yitrium and thorium. | |
| 21. |
What is the composition of Globar rod which is used as a source in Mid IR spectroscopy? |
| A. | silicon carbide |
| B. | silver chloride |
| C. | silicon dioxide |
| D. | silver carbide |
| Answer» A. silicon carbide | |
| Explanation: globar is a silicon carbide rod. it is 5mm in diameter and 50mm long. | |
| 22. |
Bolometer, a type of detector, is also known as |
| A. | resistance temperature detector (rtd) |
| B. | thermistor |
| C. | thermocouple |
| D. | golay cell |
| Answer» B. thermistor | |
| Explanation: bolometers are also known as thermistors. it is a type of resistance thermometer constructed of metals such as platinum or nickel. | |
| 23. |
Which of the following is not used as pyroelectric material used in pyroelectric transducers in Infrared spectroscopy? |
| A. | triglycine sulphate |
| B. | deutrated triglycine sulphate |
| C. | some polymers |
| D. | tetraglycine sulphate |
| Answer» D. tetraglycine sulphate | |
| Explanation: pyroelectric materials are deutrated triglycine sulphate, triglycine sulphate and some polymers. they give rise to potential when subjected to a heating or cooling effect. | |
| 24. |
Which of the following is the principle of Golay cell which is used as a detector in IR spectroscopy? |
| A. | expansion of gas upon heating |
| B. | increase in resistance due to an increase in temperature and vice versa |
| C. | temperature difference gives rise to a potential difference in the material |
| D. | decrease in resistance due to an increase in temperature |
| Answer» A. expansion of gas upon heating | |
| Explanation: it is also known as pneumatic detector. the gases expand on heating and this in turn leads to the movement of a diaphragm just like in pneumatic sensors. | |
| 25. |
spread between IR transmitting windows. What is the name of this solid sample treatment technique? |
| A. | pressed pellet |
| B. | mull technique |
| C. | solid films |
| D. | solids run in solution |
| Answer» B. mull technique | |
| Explanation: the mentioned technique is mull technique. this method is used for qualitative analysis but not quantitative analysis. | |
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