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.

2051.

A set of well-defined procedures based on mathematical and geometric formulas for solving a problem in a finite number of steps is called:

A. a permutation
B. an algorithm
C. arithmetic logic
D. a geometric model
E. None of the above
Answer» C. arithmetic logic
Discussion
2052.

For a type 1 system, the steady-state:

A. error for a step input is always zero
B. error for a velocity input is always zero
C. input for acceleration input is always non-zero
D. (a) and (c)
E. None of the above
Answer» E. None of the above
Discussion
2053.

Which of the following is required for a plotter to perform specific commands?

A. Firmware
B. Software
C. Driver
D. Hardware
E. None of the above
Answer» D. Hardware
Discussion
2054.

One of the following is not considered a method of input control in a CAD system.

A. Joystick
B. Programmable function box
C. Plotter
D. Touch terminal
E. None of the above
Answer» D. Touch terminal
Discussion
2055.

Which part of the system performs the "housekeeping" chores?

A. operating system
B. compiler
C. interpreter
D. translator
E. None of the above
Answer» B. compiler
Discussion
2056.

The greatest change as a result of CAD/CAM is taking place in which industry?

A. Medical
B. Aerospace
C. Electronics
D. Cartography
E. None of the above
Answer» D. Cartography
Discussion
2057.

The rate at which scanning is repeated is called the:

A. stroke rate
B. refresh rate
C. bandwidth
D. resolution
E. None of the above
Answer» C. bandwidth
Discussion
2058.

In order to combat foreign competition, U.S. companies are:

A. automating
B. ignoring the situation
C. seeking import tariffs
D. decreasing the salaries
E. None of the above
Answer» B. ignoring the situation
Discussion
2059.

Historically, central systems were used because:

A. semiconductor memory was not available
B. memory was very expensive
C. memory consumed a large amount of power
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2060.

A sequence controller:

A. is difficult to program
B. is a mechanical only controller
C. is no longer in widespread use
D. performs on/off control functions in relation to time.
E. None of the above
Answer» E. None of the above
Discussion
2061.

Having compatibility and commonality in and between vendors' equipment is called:

A. registration
B. standardization
C. integration
D. networking
E. None of the above
Answer» C. integration
Discussion
2062.

Which of the following is a graphical output device?

A. Dot-matrix Printer
B. Plotter
C. Laser Printer
D. Line Printer
E. None of the above
Answer» C. Laser Printer
Discussion
2063.

Operator interaction directly with the CRT is accomplished via:

A. a digitizing tablet
B. vector scanning
C. a stylus
D. a touch terminal
E. None of the above
Answer» E. None of the above
Discussion
2064.

For a type 0 system, the steady-state:

A. error for a step input is always zero
B. error for a velocity input is always zero
C. input for acceleration input is always non-zero
D. (a) and (c)
E. None of the above
Answer» D. (a) and (c)
Discussion
2065.

What two disciplines are usually tied by a common data base?

A. Documentation and geometric modeling
B. Computer-aided design and computer-aided manufacturing
C. Testing and analysis
D. Drafting and documentation
E. None of the above
Answer» C. Testing and analysis
Discussion
2066.

A display of a volume model that shows all of its edges is called a:

A. surface model
B. 3-D model
C. wire-frame
D. solid model
E. None of the above
Answer» D. solid model
Discussion
2067.

An assembly language instruction:

A. is written in ones and zeros
B. corresponds to one computer operation
C. does not require knowledge of the computer design
D. All of the above
E. None of the above
Answer» C. does not require knowledge of the computer design
Discussion
2068.

Which of the following elements can be used with a TI510 FC?

A. Drum timer
B. Metronome
C. Cymbal timer
D. Flashing light
E. None of the above
Answer» B. Metronome
Discussion
2069.

For a type 2 system, the steady-state:

A. error for a step input is always zero
B. error for a velocity input is always zero
C. input for acceleration input is always non-zero
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2070.

The refresh-vector CRT uses which of the following techniques?

A. The beam constantly travels across the screen to turn on/off a series of pixels.
B. Makes changes on the image by increasing the anode voltage.
C. Uses an electron gun to continuously flood the surface of the tube.
D. Creates images on the screen by scanning straight-line vectors between selected points.
E. None of the above
Answer» E. None of the above
Discussion
2071.

Who are called steel collar workers?

A. Office clerks
B. Factory workers
C. Steel factory workers
D. Robots
E. None of the above
Answer» E. None of the above
Discussion
2072.

Most current PC CAD systems are used for producing:

A. solids modeling
B. 2-D drawings
C. circuit simulation
D. finite element analysis
E. None of the above
Answer» C. circuit simulation
Discussion
2073.

A continuous process is:

A. used only for simple tasks
B. one that never shuts down
C. self-contained in that raw materials enter the process and an identifiable products exits the process.
D. used only with analog controllers.
E. None of the above
Answer» D. used only with analog controllers.
Discussion
2074.

Programmable controllers:

A. are programmed using relay ladder logic
B. cannot perform functions other than relay logic
C. are widely used in many different industries
D. (a) and (c) above
E. None of the above
Answer» E. None of the above
Discussion
2075.

Which of the following are kinds of instructions?

A. Input
B. Arithmetic
C. Conditional branching
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2076.

One advantage of a PC in industrial control is that it:

A. has a reliable long life compared to relay logic
B. is very difficult for the inexperienced programmer to understand
C. is unreliable because there are no moving parts
D. All of the above
E. None of the above
Answer» B. is very difficult for the inexperienced programmer to understand
Discussion
2077.

Localizing an object in an image and selectively analyzing the object in a series of redundant layers is referred to as the:

A. Turing test
B. pyramid
C. Gaussian pyramid
D. Maxwell pyramid
E. None of the above
Answer» D. Maxwell pyramid
Discussion
2078.

In the operation of a programmable controller:

A. all of the logic status is maintained in memory
B. any latched data must be done using an external latching relay
C. mathematics cannot be performed
D. All of the above
E. None of the above
Answer» B. any latched data must be done using an external latching relay
Discussion
2079.

The concept of a general CAD system was that it should provide:

A. A system for handling user actions.
B. A system for the operation of applications programming.
C. A set of basic system functions and utilities.
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2080.

The integrated circuit:

A. often is called a "chip"
B. led to the development of the transistor
C. has revolutionized electronics
D. (b) and (c)
E. None of the above
Answer» E. None of the above
Discussion
2081.

What is offset error?

A. the difference between the sensor input and the absolute sensed parameter.
B. the difference between the controller output and the setting of the manipulated variable.
C. the difference between the control setpoint value and the actual value.
D. All of the above
E. None of the above
Answer» D. All of the above
Discussion
2082.

Which of the following may be classified as an automation system?

A. automated warehouses
B. numerically controlled machine tools
C. robotics
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
2083.

The accuracy of a pick-and-place robot can be as good as:

A. + 0.0005 inches
B. + 0.05 inches
C. 0.008 inches
D. + 3%
E. None of the above
Answer» B. + 0.05 inches
Discussion
2084.

Ergonomics refers to:

A. the human aspect of the environment around the workstation as well as the workstation itself
B. the cost relationship of the workstation versus productivity
C. the level of involvement the operator has with the workstation
D. the technology involved in the workstation itself
E. None of the above
Answer» B. the cost relationship of the workstation versus productivity
Discussion
2085.

Artificial intelligence operates on the principle of using a _____ base as opposed to a data base.

A. Character
B. Knowledge
C. PROLOG
D. LISP
E. None of the above
Answer» C. PROLOG
Discussion
2086.

Which command is used to copy a file wb with the same name from the programs directory to the misc directory?

A. copy programs/wb misc/wb
B. cp programs/wb misc
C. tar programs/wb misc/wb
D. copy a:programs/wb b:misc/wb
E. None of the above
Answer» C. tar programs/wb misc/wb
Discussion
2087.

The seventh field of /etc/password is

A. password
B. login
C. shell
D. home
E. None of the above
Answer» D. home
Discussion
2088.

Which command is used to display the end of the file?

A. head - r
B. tail
C. eof
D. bof
E. None of the above
Answer» C. eof
Discussion
2089.

Which command is used to create a directory?

A. crdir
B. md
C. mkdir
D. cr
E. None of the above
Answer» D. cr
Discussion
2090.

The commonly used UNIX commands like date, ls, cat, etc. are stored in

A. /dev directory
B. /bin and /usr/bin directories
C. /tmp directory
D. /unix directory
E. None of the above
Answer» C. /tmp directory
Discussion
2091.

Which of the following commands is used to remove files with confirmation prompt from the user file system which have neither been accessed nor modified i the last one year?

A. find -mtime +365 | rm
B. grep (/usr/*) - mtime + 365 | -ok rm
C. find -name - mtime + 365 / - ok rm
D. find /user/* (-mtime + 365 - a - atime +365 ) - OK rm {} ;
E. None of the above
Answer» E. None of the above
Discussion
2092.

Which of the following commands is used to summarize the disk usage?

A. chkdsk
B. fdisk
C. du
D. disk
E. None of the above
Answer» D. disk
Discussion
2093.

If a file has read and write permissions for the owner, then the octal representation of the permissions will be

A. 1
B. 6
C. 5
D. 3
E. None of the above
Answer» C. 5
Discussion
2094.

Which of the following commands is used to view your file 24 lines at a time?

A. pg
B. cat
C. lp
D. /p
E. None of the above
Answer» B. cat
Discussion
2095.

Which shell's wild-cards is used to match a single character?

A. *
B. ?
C. [ijk]
D. [!ijk]
E. None of the above
Answer» C. [ijk]
Discussion
2096.

In Bourne shell, which file sets the Unix environment for the user when the logs into his HOME directory.

A. .exrc
B. .profile
C. lastlogin
D. .mbox
E. None of the above
Answer» C. lastlogin
Discussion
2097.

Which command is used to copy the three files wb, collect and mon into the misc directory, under the same, when you were currently in the programs directory?

A. copy wb ../misc collect ../misc mon ../misc
B. cp wb collect mon ../misc
C. copy wb collect mon /misc
D. tar wb collect mon /misc
E. None of the above
Answer» C. copy wb collect mon /misc
Discussion
2098.

The command to count the number of files in the current directory by using pipes, is

A. ls | wc
B. ls -l | wc -l
C. ls | wc -w
D. ls | ws -c
E. None of the above
Answer» D. ls | ws -c
Discussion
2099.

Which of the following commands is used to count the total number of lines, words, and characters contained in a file.

A. count p
B. wc
C. wcount
D. countw
E. None of the above
Answer» C. wcount
Discussion
2100.

Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories?

A. rm *
B. rm -r *
C. rm all
D. rm *.*
E. None of the above
Answer» C. rm all
Discussion