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.

2151.

Which command is used to locate all the .profile files in the system?

A. ls profile
B. find /-name profile -print
C. cd /.profile
D. l -u .profile
E. None of the above
Answer» C. cd /.profile
Discussion
2152.

Which command is used to display the device name of the terminal you are using?

A. who
B. ls
C. tty
D. stty
E. None of the above
Answer» D. stty
Discussion
2153.

The ls -l command tells

A. who the owner of the file is
B. the name of the group owner of the file
C. how large the file is and when the file was last modified.
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2154.

Which command is used to set the three permissions for all the three categories of users of a file?

A. chgrp
B. chown
C. chmod
D. chusr
E. None of the above
Answer» D. chusr
Discussion
2155.

Which of the following commands can be used to get information about yourself?

A. who am i
B. i /4
C. pwd
D. which
E. None of the above
Answer» B. i /4
Discussion
2156.

D/A (digital to analog) conversion:

A. results in a binary code as the final output
B. has to be sampled at 1/2 the highest input frequency
C. must be fed through a filter to reproduce the original signal accurately
D. both (b) and (c)
E. None of the above
Answer» D. both (b) and (c)
Discussion
2157.

Most data transmission in the future will be:

A. digital bit stream encoded data
B. analog in nature
C. carried over metallic telephone lines
D. All of the above
E. None of the above
Answer» B. analog in nature
Discussion
2158.

The File that contains a set of instructions which are performed when a user logs in, is

A. .exrc
B. .profile
C. .autoexec
D. autoexec.bat
E. None of the above
Answer» C. .autoexec
Discussion
2159.

The octal representation 652 indicates

A. Execute permission for the owner
B. Write permission for others
C. Read and write permission of groups
D. All of the above
E. None of the above
Answer» C. Read and write permission of groups
Discussion
2160.

Which of the following command is used to count just the number of lines contained in a file?

A. wc -l
B. wc -c
C. wc -w
D. wc -r
E. None of the above
Answer» B. wc -c
Discussion
2161.

Which of the following command is used to go to home directory?

A. cd..
B. cd/
C. cd
D. cd HOME.
E. None of the above
Answer» D. cd HOME.
Discussion
2162.

Which command is used to move all files to the bin sub-directory of the parent directory?

A. mv *.* /bin/
B. mv * /bin/*
C. mv * ../bin
D. mv * ../bin *.*
E. None of the above
Answer» D. mv * ../bin *.*
Discussion
2163.

Which of the following files contains information related to password aging?

A. Shadow
B. password
C. profile
D. All the three
E. None of the above
Answer» C. profile
Discussion
2164.

Which of the following commands is used to rename a file?

A. rename
B. remove
C. mv
D. ren
E. None of the above
Answer» D. ren
Discussion
2165.

Which of the following is not a filter?

A. cat
B. grep
C. wc
D. sort
E. None of the above
Answer» F.
Discussion
2166.

Which command will be used with vi editor to replace text from cursor to right?

A. r
B. R
C. s
D. S
E. None of the above
Answer» C. s
Discussion
2167.

The insect type robot Attila is a more competent version of the robot Genghis an weights 1.7 kg. What is the number of microprocessors carried by its body?

A. 15
B. 10
C. 33
D. 15
E. None of the above
Answer» C. 33
Discussion
2168.

The difference between CAD and CAM is that CAD software is directed at product design while CAM software is:

A. concerned with production and control of tool design
B. concerned with management programs
C. designed for communications
D. specifically for PC-board design
E. None of the above
Answer» B. concerned with management programs
Discussion
2169.

Which of the following commands is used to copy a file wb from the programs directory into a file called wbx in the misc directory?

A. copy programs/wb misc/wbx
B. cp programs/wb misc/wbx
C. tar programs/wb misc/wbx
D. copy a:programs/wb b:misc/wbx
E. None of the above
Answer» C. tar programs/wb misc/wbx
Discussion
2170.

Which type of digitizer measures a wave traveling at the speed of sound?

A. Electrostatic
B. Sonic
C. Digitizing sr amer
D. Caparitive
E. None of the above
Answer» C. Digitizing sr amer
Discussion
2171.

What is required to enable the PC to emulate a graphics terminal?

A. Software
B. A laser printer
C. A color monitor
D. A graphics board
E. None of the above
Answer» B. A laser printer
Discussion
2172.

The general CAD system was development by considering a wide range of possible uses of such a system.

A. Mechanical engineering design
B. Animation and graphic design
C. Structural engineering design and Electronic circuit design
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2173.

Relay ladder logic is used in a PC because:

A. it is impossible to write a control program for a machine in any other logic
B. it is the best industrial control language ever developed.
C. most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
2174.

The "end-effector" of a robot:

A. can be an actual tool
B. is the robot "hand"
C. may have a gripping action
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2175.

The program execution time:

A. must be slower than the fastest mechanical operation that is to be controlled
B. will vary depending on the language used
C. cannot be changed once the program is written
D. All of the above
E. None of the above
Answer» C. cannot be changed once the program is written
Discussion
2176.

Microcomputer-based control sys tems

A. will just keep their present capability
B. will have more standard industrial application software available in the future.
C. will tend to increase in cost.
D. All of the above
E. None of the above
Answer» C. will tend to increase in cost.
Discussion
2177.

A thermistor:

A. is a pressure sensing device
B. has a voltage output
C. measures temperature
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
2178.

The robot:

A. is very primitive at the present
B. represents the most powerful new industrial automation tool currently on the horizon
C. will be more useful when robot vision is improved significantly
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2179.

Many things can be done to minimize downtime loss. Identify two of them.

A. establish a user forum program
B. stock critical spare parts
C. provide an extra workstation
D. both b and c
E. None of the above
Answer» E. None of the above
Discussion
2180.

A typical NC system has which of the following components?

A. Controller
B. Tape input
C. Machine tool
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2181.

The lowest form of computer language is called:

A. FORTRAN
B. BASIC
C. machine language
D. COBOL
E. None of the above
Answer» D. COBOL
Discussion
2182.

CAE and CAM are linked through:

A. a common data base and communications system
B. NC tape programming and automated design
C. parts production and testing
D. assembly automation and tool production.
E. None of the above
Answer» B. NC tape programming and automated design
Discussion
2183.

The parallel register:

A. can store a multiple bit binary number
B. uses R-S flip-flops
C. All of the above
D. is erased after a word is read fromit
E. None of the above
Answer» B. uses R-S flip-flops
Discussion
2184.

A pick-and-place manipulator is:

A. the most flexible of all robots
B. an intelligent robot
C. capable of point-to-point operation
D. primarily used for large parts handling
E. None of the above
Answer» D. primarily used for large parts handling
Discussion
2185.

FORTRAN is:

A. machine dependent
B. a medium-level language
C. a mathematically oriented language
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
2186.

A process controller:

A. can interface to digital and analog I/O
B. is useful in a continuous process control application
C. can solve a PID process control equation easily
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2187.

Automation means:

A. assisting or replacing humans with machines.
B. workers controlling machines.
C. increased productivity.
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2188.

Which method uses the design analysis as a method for effecting the design?

A. The iterative design method
B. The direct method
C. The design selection method
D. All of the above
E. None of the above
Answer» C. The design selection method
Discussion
2189.

The main activity(ies) of Designer in CAD is/are:

A. Control of the design process in information distribution.
B. Application of creativity, ingenuity, and experience.
C. Organisation of design information
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2190.

The three different types of pen plotter technology are flatbed, drum, and:

A. electrostatic
B. thermal
C. pinch roller
D. impact
E. None of the above
Answer» D. impact
Discussion
2191.

High-level languages:

A. are "procedure-oriented"
B. are very difficult to use
C. cannot be used with automatic systems.
D. require knowledge of the computer design
E. None of the above
Answer» B. are very difficult to use
Discussion
2192.

Numerical control:

A. is a method for controlling the operation of a machine by means of a set of instructions
B. applies only to milling machines
C. is a method for producing an exact number of parts per hour
D. All of the above
E. None of the above
Answer» B. applies only to milling machines
Discussion
2193.

A flip-flop:

A. is a combinational logic device
B. is a sequential logic device
C. remembers what was previously stored in it
D. (a) and (c)
E. None of the above
Answer» E. None of the above
Discussion
2194.

A technique for displaying applications where complex 3-D geometric are required for the exteror shall of a product is called:

A. solid modeling
B. 2-D modeling
C. 3-D modeling
D. surface modeling
E. None of the above
Answer» E. None of the above
Discussion
2195.

An intelligent robot can:

A. make decisions
B. handle only small payloads
C. walk
D. speak
E. None of the above
Answer» B. handle only small payloads
Discussion
2196.

A person who has a high-school diploma would be least likely to obtain which of the following jobs?

A. data-entry operator
B. librarian
C. computer operator
D. programmer
E. None of the above
Answer» E. None of the above
Discussion
2197.

Which of the following is(are) true concerning information-system careers?

A. the primary reason for this increase is the declining cost of hardware
B. the number of information-system specialists recruited is expected to be greater than any other profession in the 1990s.
C. an information-system career is one of the few area that is recession-proof
D. both (a) and (b)
E. None of the above
Answer» E. None of the above
Discussion
2198.

In Decision Tables three are:

A. tabulated decisions
B. decisions
C. condition stubs and action stubs
D. decision hierarchy
E. None of the above
Answer» D. decision hierarchy
Discussion
2199.

The integration of the computer with manufacturing is called CIM or _____

A. CAM
B. CAD
C. Computer Integrated manu facturing
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
2200.

With respect to personnel matters in the United States, ERISA stands for

A. Earnings and Revenue Information System Administration
B. Early Retirement Income Standards Act
C. Employee Review-in-Service Administration
D. Employee Retirement Income Security Act
E. None of the above
Answer» E. None of the above
Discussion