Explore topic-wise MCQs in Engineering.

This section includes 4320 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.

3851.

A condition that led to the development of databases was

A. a demand for more data to support information needs
B. an increase in the amount of data handled by organizations
C. the proliferation of data files
D. All of the above
E. None of the above.
Answer» E. None of the above.
Discussion
3852.

The _____ command is used to allocates an extent for the table in SQL

A. MODIFY ALLOCATES
B. MODIFY TABLE
C. ALTER TABLE
D. REDEFINE TABLE
E. None of the above
Answer» B. MODIFY TABLE
Discussion
3853.

Which of the following is not the responsibility of the utilities component of DBMS software?

A. creating the physical and logical designs
B. removing flagged records for deletion
C. creating and maintaining the data dictionary
D. monitoring performance
E. None of the above
Answer» B. removing flagged records for deletion
Discussion
3854.

In order to use a record management system

A. You need to understand the low-level details of how information in stored
B. You need to understand the model the record management system uses.
C. Both (a) and (b)
D. All of the above
E. None of the above
Answer» C. Both (a) and (b)
Discussion
3855.

A data dictionary doesn't provide information about:

A. where data is located
B. the size of the disk storage device
C. It allows a many-to-many relationship
D. It is conceptually simple
E. It will be the dominant data base of the future
Answer» C. It allows a many-to-many relationship
Discussion
3856.

In SQL, the CREATE TABLE is used

A. to create a table, defining its columns, integrity constrains, and storage allocation
B. to add a column/integrity constraint to a table
C. to redefine a column
D. to change a table's storage characteristics
E. All of the above
Answer» B. to add a column/integrity constraint to a table
Discussion
3857.

BCD numbers are useful whenever _____ information is transferred into or out of a digital system.

A. decimal
B. binary
C. ASCII
D. hexadecimal
E. None of the above
Answer» B. binary
Discussion
3858.

Which of the following is a universal gate?

A. AND
B. OR
C. EX-OR
D. NAND
E. None of the above
Answer» E. None of the above
Discussion
3859.

Which of the following boolean algebra statements represent commutative law

A. (A+B)+CA+(B+C)
B. A.(B+C)(A.B)+(A.C)
C. A+BB+A
D. A+AA
E. None of the above
Answer» D. A+AA
Discussion
3860.

An inventor is a gate with only _____ input; the output is always in the opposite state from the input

A. one
B. two
C. more than one
D. All of the above
E. None of the above
Answer» B. two
Discussion
3861.

In top down analyis and design

A. each succeeding phase is more detailed than the phase before it
B. each succeeding phase is as detailed as the phase before it.
C. each succeeding phase is less detailed than the phase before it
D. aLL of the above
E. None of the above
Answer» B. each succeeding phase is as detailed as the phase before it.
Discussion
3862.

The _____ symbol is used in a flowchart to represent a calculation task.

A. Input
B. Output
C. Process
D. Start
E. Stop
Answer» D. Start
Discussion
3863.

The functional capacity of SSI devices is

A. 1 to 11 gates
B. 12 to 99 gates
C. 100 to 10,000 gates
D. more than 10,000 gates
E. None of the above
Answer» B. 12 to 99 gates
Discussion
3864.

The right shift operator is represented by the symbol

A. >
B. >>
C. ->
D. <
E. None of the above
Answer» C. ->
Discussion
3865.

An IBM System/38 represents the computer class of:

A. small-scale computer
B. medium-scale computer
C. large-scale computer
D. super computer
E. None of the above
Answer» B. medium-scale computer
Discussion
3866.

Compared to an open-loop system, a closed-loop control system is:

A. more accurate
B. more complex
C. more stable
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
3867.

Several objectives are required to achieve a successful data base management program. These are availability of data, quality of data, and

A. compatibility of data
B. transmission of data
C. desirability of data
D. up-to-date data
E. None of the above
Answer» E. None of the above
Discussion
3868.

What is the name of the system which deals with the running of the actual computer and not with the programming problems?

A. Operating system
B. Systems program
C. Object program
D. Source program
E. None of the above
Answer» C. Object program
Discussion
3869.

The major function of the language system is:

A. to perform various processing tasks
B. to provide artificial-intelligence capabilities to the DSS
C. to provide data to the DSS
D. to enable the users to interact with the DSS
E. None of the above
Answer» E. None of the above
Discussion
3870.

A packet switching network that was sponsored by the Commission of the EEC and became operational in 1979 is

A. LAN
B. Broadband network
C. Star network
D. Euronet
E. None of the above
Answer» E. None of the above
Discussion
3871.

A measure of the strength of the connection between two functions is

A. cohesion
B. coupling
C. dependence
D. subjection
Answer» C. dependence
Discussion
3872.

Two access specifers in C++ are

A. public and private
B. int and double
C. formal and informal
D. void and free
Answer» B. int and double
Discussion
3873.

Which of the following statements opens a file named temp.dat for output?

A. outFile.open("temp .dat");
B. fileOut.output("temp .dat");
C. openFile.out("temp .dat");
D. fileOpen.out("temp .dat");
E. out.fileOpen("temp .dat");
Answer» B. fileOut.output("temp .dat");
Discussion
3874.

The standard output stream, which refers to the computer screen, is called

A. cin
B. cout
C. stin
D. stout
E. None of the above
Answer» C. stin
Discussion
3875.

Hiding individual components of an entry is _____

A. polymorphism
B. encapsulation
C. scaling
D. not recommended in C++
Answer» C. scaling
Discussion
3876.

The delete operator returns ______ to the operating system

A. memory that is no longer needed
B. void
C. recycle bin
D. None of the above
Answer» B. void
Discussion
3877.

The ESD wrist strap is designed to protect PC Components or Service Technicians ?

A. PC Components
B. Service Technicians
C. Both
Answer» D.
Discussion
3878.

A fundamental type such as int or double is a _____

A. programmer-defined type
B. complex type
C. nonscalar type
D. scalar type
Answer» E.
Discussion
3879.

At the time of system study, flowcharts are drawn using

A. non-standard symbols
B. general symbols
C. abbreviated symbols
D. specific symbols
E. None of the above
Answer» C. abbreviated symbols
Discussion
3880.

Which of the following is not a disadvantage of wireless LAN?

A. Slower data transmission
B. higher error rate
C. interference of transmissions from different computers
D. All of the above
Answer» E.
Discussion
3881.

A distributed network configuration in which all data/information pass through a central computer is

A. bus network
B. star network
C. ring network
D. Point-to-point network
E. None of the above
Answer» C. ring network
Discussion
3882.

What part of 192.168.10.51 is the Network ID, assuming a default subnet mask?

A. 192
B. 192.168.10
C. 0.0.0.5
D. 51
E. None of the above
Answer» C. 0.0.0.5
Discussion
3883.

If delays are recorded as 10 bit numbers in a 50 router network, and delay vectors are exchanged twice a second, how much bandwidth per fill duplex line is occupied by the distributed routing algorithm?

A. 500 bps
B. 1500 bps
C. 5 bps
D. 1000 bps
Answer» E.
Discussion
3884.

A normal C++ operator that acts in special ways on newly defined data types is said to be

A. glorified
B. encapsulated
C. classified
D. overloaded
Answer» E.
Discussion
3885.

A large computer information system maintains many different computer files. Which amongst them is called a perpetual file?

A. Specialized file
B. Log file
C. Master file
D. Update file
E. None of the above
Answer» D. Update file
Discussion
3886.

When you have finished entering information into a form

A. the template is written to the data file
B. the contents of the form are written to the data file
C. the contents of the form can be printed
D. All of the above
E. None of the above
Answer» C. the contents of the form can be printed
Discussion
3887.

A list consists of last names, first names, addresses, and pin codes if all people in the list have the same last and the same pin code, a useful key would be

A. the pin code
B. the last name
C. a compound key consisting of the first name and the last name
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
3888.

A number of related records that are treated as a unit is called

A. file
B. field
C. data
D. batch
E. None of the above
Answer» B. field
Discussion
3889.

In raster-scan colour monitors, colour can be intensified by:

A. grouping the phosphor dots in a circular pattern
B. having each electron gun controlled by a composite signal
C. using an in-line gun arrangement with a solid metal mesh
D. having each electron gun controlled by separate signal
E. None of the above
Answer» E. None of the above
Discussion
3890.

What should be first considered in choosing a plotter?

A. The hardware you currently own
B. The application for which it will be used
C. The type of data you will input
D. The cost
E. None of the above
Answer» C. The type of data you will input
Discussion
3891.

The coordinate system used to describe a workpiece:

A. is always two-dimensional
B. changes from part to part
C. is defined with respect to a point on the machine
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
3892.

The SKETCHPAD system

A. consisted of an cathode-ray oscilloscope driven by a Lincoln Tx2 computer where by graphical information was displayed on the screen.
B. is used for interactive Graphics
C. is expensive because it is sophisticated and make demands on the power and resources of the computer.
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
3893.

An OR gate has 6 inputs. What is the only input word that produces a 0 output?

A. 000000
B. 000111
C. 111000
D. 111111
E. None of the above
Answer» B. 000111
Discussion
3894.

You can use C++ as a procedural, as well as an object-oriented, language

A. True
B. False
Answer» B. False
Discussion
3895.

What is the phase shift between total current and voltage in the circuit of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm

A. 180 degree
B. 30 degree
C. 45 degree
D. 75 degree
E. None of the above
Answer» D. 75 degree
Discussion
3896.

Molecule is

A. The smallest particle of a substance that retains the properties of that substance
B. A atom that has a shortage of electrons in its outer orbit
C. A atom that has an excessive number of electrons in its outer orbit
D. A atom that flows whenever there is an imbalance of electrical charges between two points
E. None of the above
Answer» B. A atom that has a shortage of electrons in its outer orbit
Discussion
3897.

What form of energy is used for creating static electricity?

A. Solar energy
B. Mechanical energy
C. Chemical energy
D. Light energy
E. None of the above
Answer» E. None of the above
Discussion
3898.

Suppose the zener diode has a breakdown voltage of 10 V and zener resistance of 8.5 W, what is the additional voltage when the current is 20 mA?

A. 0.17 V
B. 10.17 V
C. 20 V
D. 18.8 V
E. None of the above
Answer» B. 10.17 V
Discussion
3899.

What is a free electron?

A. An electron that has been freed from its parent atom
B. An electron that costs nothing
C. An electron that has no electrical charge
D. An electron that has twice the amount of charge of a normal electron
E. None of the above
Answer» B. An electron that costs nothing
Discussion
3900.

To get the Norton current, you have to

A. Short the load resistor
B. Open the load resistor
C. Short the voltage source
D. Open the voltage source
E. None of the above
Answer» D. Open the voltage source
Discussion