Maintenance Engineer Interview Questions and Answers in 2025 (100+ Q&A)

Maintenance Engineer Unix

Ques:- Different types of Real-Time Scheduling?

Asked In :- Beml,

Linux Maintenance Engineer

Ques:- What command should you type to see all the files with an extension of 'mem' listed in reverse alphabetical order in the /home/ben/memos directory.

Asked In :- Delhi Metro Rail, 6d technologies,

Linux Maintenance Engineer

Ques:- You have three files in the /home/ben/memos directory called letters, tom, betty. How could you determine each file's type by issuing only one command?

Asked In :- fulton hogan,

Linux Maintenance Engineer

Ques:- Which of the following commands will show a list of the files in your home directory including hidden files and the contents of all subdirectories?Choose one:a. ls -c homeb. ls -aR /home/usernamec. ls -aF /home/usernamed. ls -l /home/username

Asked In :-

Linux Maintenance Engineer

Ques:- What does the apropos command do?Choose one:a. It is the same as the man -f command.b. It is the same as the man -K command.c. It searches the short descriptions from the man pages.d. It uses the locatedb database to answer your query.

Asked In :- MSys Technologies,

Linux Maintenance Engineer

Ques:- Which of the following would improve your ability to provide user support?Choose one:a. Create a directory containing instructions for using all installed applications.b. Email your user's your office hours.c. Whenever a user has a problem, fix it and leave.d. Use as much technical language as possible when explaining what went wrong.

Asked In :- Nordex,

Linux Maintenance Engineer

Ques:- Which of the following commands will make your home directory your working directory.Choose one:a. cdb. cd homec. cd ..d. cd home/username

Asked In :- CDAC Thiruvananthapuram, ITRS Group, acronis,

Linux Maintenance Engineer

Ques:- You have created special configuration files that you want copied to each user's home directories when creating new user accounts. You copy the files to /etc/skel. Which of the following commands will make this happen?Choose one:a. useradd -m usernameb. useradd -mk usernamec. useradd -k usernamed. useradd -Dk username

Asked In :- rohde & schwarz, a.g. coombs, uninterruptible power supplies ltd,

Linux Maintenance Engineer

Ques:- You issue the following command useradd -m bobm But the user cannot logon. What is the problem?Choose one:a. You need to assign a password to bobm's account using the passwd command.b. You need to create bobm's home directory and set the appropriate permissions.c. You need to edit the /etc/passwd file and assign a shell for bobm's account.d. The username must be at least five characters long.

Asked In :- digitalocean, vtiger, anand engineering products pvt ltd,

Linux Maintenance Engineer

Ques:- You attempt to use shadow passwords but are unsuccessful. What characteristic of the /etc/passwd file may cause this?Choose one:a. The login command is missing.b. The username is too long.c. The password field is blank.d. The password field is prefaced by an asterick.

Asked In :- Padmini VNA Mechatronics,

Linux Maintenance Engineer

Ques:- Which of the following tasks is not necessary when creating a new user by editing the /etc/passwd file?Choose one:a. Create a link from the user's home directory to the shell the user will use.b. Create the user's home directoryc. Use the passwd command to assign a password to the account.d. Add the user to the specified group.

Asked In :- stryker,

Maintenance Engineer Unix

Ques:- What is Fork swap?

Asked In :- Sharjah Electricity and Water Authority SEWA,

Maintenance Engineer Unix

Ques:- Is the Process before and after the swap are the same? Give reason.

Asked In :-

Maintenance Engineer Unix

Ques:- Compare Linux credit based algorithm with other scheduling algorithms?

Asked In :- WAPDA Water and Power Development Authority, Yield Engineering Systems, hitachi rail europe, my home constructions, ndf,

Maintenance Engineer Unix

Ques:- What is Expansion swap?

Asked In :- Shree Cement, A Wabtec Company, volvo group, sunway group, dgs technical services inc.,

Maintenance Engineer Unix

Ques:- Give an example of microkernel

Asked In :-

Maintenance Engineer Solaris

Ques:- How to install win xp after installing Solaris for dual booting?

Asked In :- Doha Petroleum Construction DOPET, Chryso Group,

Right Answer:
To install Windows XP after Solaris for dual booting, follow these steps:

1. **Backup Data**: Ensure all important data is backed up.
2. **Partition the Disk**: Use a partitioning tool (like GParted) to create a new partition for Windows XP. Make sure to leave enough space for Windows.
3. **Install Windows XP**: Boot from the Windows XP installation CD and install it on the newly created partition. Follow the installation prompts.
4. **Repair the Bootloader**: After Windows installation, it will overwrite the bootloader. To restore access to Solaris, boot from a Solaris installation CD or live CD and use the following command to reinstall the GRUB bootloader:
```
installgrub /usr/platform/`uname -i`/lib/grub/grub.conf
```
5. **Update GRUB Configuration**: Ensure that the GRUB configuration file includes entries for both Solaris and Windows XP.
6. **Reboot**

Maintenance Engineer Unix

Ques:- What are the events done by the Kernel after a process is being swapped out from the main memory?

Asked In :- Payoda, KSE Electricals, newfoundland & labrador hydro,

Linux Maintenance Engineer

Ques:- What command must you run to update the database used by the whatis command?Choose one:a. makewhatisb. updatedbc. make whatisdbd. The database is updated automatically.

Asked In :- infrastructure ontario,

Maintenance Engineer Unix

Ques:- What are the processes that are not bothered by the swapper? Give Reason.

Asked In :-

Welcome to the Maintenance Engineer interview question bank on takluu.com! If you’re applying for roles in manufacturing, production, power plants, oil & gas, FMCG, or construction industries, this category is tailor-made for you.

Our expert-curated content covers every critical area:

Preventive and Predictive Maintenance
Breakdown Analysis & Root Cause Identification
TPM (Total Productive Maintenance)
Safety Protocols
CMMS Systems
Spare Parts Management
Mechanical, Electrical & Instrumentation Maintenance

Here are some sample questions you’ll explore:

How do you handle unexpected equipment failure during peak hours?
What’s the process of conducting Root Cause Analysis (RCA)?
Which KPIs do you track for maintenance performance?
What’s your experience with CMMS tools like SAP PM or Maximo?
How do you ensure safety compliance during maintenance shutdowns?

Whether you’re a junior maintenance engineer, shift engineer, or plant-level technical head, these questions help you demonstrate technical depth, process awareness, and safety-first mindset—qualities companies like L&T, Reliance, Tata Power, ABB, Siemens, and JSW actively seek.

Our platform also offers scenario-based questions and real-time case discussions to help you stand out.

Your next role starts with preparation. Start here—only at takluu.com.

Questions in: Maintenance Engineer

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