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Ruby on Rails Test

🕒 Allotted Time: approx 45 mins

🧐 Questions:

  • Approx 20 MCQs

⚙️ Customized Based On:

  • Experience/ difficulty level
  • Multiple skills in 1 assessment
  • Job description/ role requirements

🧪 Test Options:

  • Preset test: Not available
  • Customized test: < 48 hour setup time

📝 Topics:

OOPs concepts

RSpec is a unit test framework for the Ruby programming language.

Basics of Ruby

The Rails router recognizes URLs and dispatches them to a controller's action, or to a Rack application.

URL routing
Monkey patching
See full list

Sample Adaface Ruby on Rails Questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this test will be non-googleable.

🧐 Question🔧 Skill💪 Difficulty⌛ Time
Movie query problem - Our intern created the followi
RailsHard4 min
Arrays Strings - Check the following Ruby code
Arrays Strings
RubyEasy2 min
Class and Self - What is the execution result o
RubyMedium2 min
Exceptions - What is the result of followin
Exceptions OOPs
RubyEasy2 min
New Class - Check the following Ruby code
OOPs Singleton
RubyMedium2 min

How to use the Adaface Ruby on Rails test

Start screening candidates within minutes with the Adaface Ruby on Rails ready-to-go test

1. Choose the most appropriate test for your role

2. Start inviting candidates to complete the assessment

3. Receive real time notifications and shortlist the best candidates

Customize the Adaface Ruby on Rails Test according to your job description

1. Get a custom assessment from our library of 700+ skills within 48 hours

2. Start inviting candidates to complete the assesment

3. Receive real time notifications and shortlist the best candidates

Adaface Ruby on Rails test is trusted by enterprises worldwide

Morgan Stanley
SG Government
Ernst and Young
Optimum Solutions
United Nations
Love Bonito

About the Adaface Ruby on Rails Test

Evaluate Ruby and Rails technical and coding skills with Adaface skills assessment platform powered with an intelligent chatbot


OOPs concepts

RSpec is a unit test framework for the Ruby programming language.

Basics of Ruby

The Rails router recognizes URLs and dispatches them to a controller's action, or to a Rack application.

URL routing
Monkey patching

Rails Active Records provide an interface and binding between the tables in a relational database and the Ruby program code that manipulates database records.

Active Record
Action Cable

A control flow construct is a language feature which disrupts the normal progression to the next statement and conditionally or unconditionally branches to another location in source code.

Control Flow

A Rails Model is a Ruby class that can add database records, find particular data one is looking for, update data, or remove data.

Working with Files

Metaprogramming is writing programs that write programs.


Recommended Roles:

RoR Developer (2-4 yrs of experience)
RoR Programmer
Ruby on Rails Application Developer
Web Developer
Back-End Developer

Why You Should Use This Ruby on Rails assessment test

The Ruby on Rails Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves expensive engineering time by filtering out unqualified candidates.

The Adaface Ruby on Rails test screens candidates for the typical skills recruiters look for in a Ruby on Rails developer:

  • Expertise with using Ruby programming knowledge and Ruby on Rails framework.
  • Efficient with Ruby on Rails APIs
  • Solid understanding of OOPs concepts (Data Abstraction, Encapsulation, Inheritance, Polymorphism)
  • Proficient with code versioning tools such as Git
  • Familiarity with concepts such as MVC and Mocking

The insights generated from this assessment can be used by recruiters and hiring managers to identify the best candidates for the role. Anti-cheating features enable you to be comfortable with conducting assessments online. The Ruby on Rails Developer Online Test is ideal for helping recruiters identify which candidates have the technical skills to do well on the job.

The idea behind this online Ruby on Rails quiz is to help you assess on-the-job Ruby on Rails concepts, Core Ruby knowledge, coding, and debugging skills with just one test.

About the Ruby on Rails Developer Role

Ruby is a high-level, general-purpose programming language that was designed and developed in the mid-1990s by Yukihiro "Matz" Matsumoto.

Ruby on Rails, or simply referred to as Rails, is a server-side web app framework written in Ruby programming language. Rails has a MVC (model–view–controller) framework and encourages the use of web standards such as JSON or XML for data transfer and HTML, CSS, and JavaScript for user interfacing.

Typical Ruby on Rails Developer responsibilities include:

  • Designing, developing, and maintaining efficient, reusable, and reliable Ruby code
  • Integration of user-facing elements with server-side logic
  • Identifying and resolving bottlenecks and bugs in the code
  • Integration of data storage solutions, for example, databases

Distribution Of Test Scores

The actual score distributon will vary based on your candidate pipeline quality, but you should typically expect ~20% of the candidates to do well on Adaface assessments.

The score distribution for our assessments follow the normal curve. This is a good sign- standardized tests like SAT and GRE follow the normal distribution (bell curve).

Status quo assessments typically have the exact opposite of the bell curve (too many candidates getting close to 0, too many candidates getting close to 100 and too few candidates in the middle). This is typically because they focus on theoretical questions or trick questions, which are very binary in nature- either you know the trick/ theory or you don’t.

How Adaface Is Different

Adaface conversational assessments are reflective of on-the-job skills and see an 86% completion rate as compared to ~50% for traditional assessment platforms.



Theoretical questions/ puzzles

Feels like a test

One-size-fits-all assessments




Questions for on-the-job skills





What is a custom assessment?

Every role is different and requires a custom assessment to identify top candidates efficiently. Adaface subject matter experts understand your job description/ role requirements and pick the most relevant questions from our library of 10000+ questions to create a technical assessment that helps you find the qualified candidates in your candidate pipeline quickly. All custom assessments are set up based on the job description, role requirements, must-have skills, experience level and salary range within a maximum of 48 hours and you will get an email notification once it goes live.

Check out a sample assessment here (no credit card required).

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify.

How is Adaface different from other assessment tools?

We believe that status quo tech assessment platforms are not a fair way for companies to evaluate engineers because they focus on trick questions/ puzzles/ niche algorithms. We started Adaface to help companies find great engineers by assessing on-the-job skills required for a role. Read more about why we started Adaface.

Here's what's different with Adaface:

  • High quality non-googleable questions that test for on-the-job skills as opposed to theoretical knowledge.
  • A friendly conversational assessment with a chatbot, instead of sending a "test" to a candidate. This translates to a higher completion rate. Adaface assessments (86% candidate completion rate), as opposed to traditional tests (40-50% candidate completion rate)
  • Customized assessments for 700+ skills at different experience levels.
Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Web proctoring
  • Webcam proctoring
  • Plagairism detection
  • Non-googleable questions
  • Secure browser

Read more the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. As in an assessment is optimizing to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 60%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

The platform is completely self-serve, so here's one way to proceed:

  • You can sign up for free to get a feel for how it works.
  • The free trial includes one sample assessment (Java/ JavaScript) that you will find in your dashboard when you sign up. You can use it to review the quality of questions, and the candidate experience of a conversational test on Adaface.
  • To review the quality of questions, you can also review our public questions for 50+ skills here.
  • Once you're convinced that you want to try it out with real assessments and candidates, you can pick a plan according to your requirements.
I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!

Brandon Lee, Head of People, Love, Bonito

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Have any questions about the Adaface Ruby on Rails Test?
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