Start learning →

HAL (Hindustan Aeronautics) — free MCQ practice

Choose from 29 questions across 1 subjects and 3 topics. Open any question for its answer and worked solution, or keep learning through bite-sized lessons and reviews with Quill.

Start learning HAL (Hindustan Aeronautics) with Quill →

HAL (Hindustan Aeronautics) subjects

Physics (29)

Explore popular topics

Engineering ServicesPhysicsSecond Law of Thermodynamics

Try a HAL (Hindustan Aeronautics) question

A process can only be reversible if every step keeps the system at equilibrium. That requirement is:Read the answer and worked solution →A reversible process is best described as:Read the answer and worked solution →In reality, almost all real processes are:Read the answer and worked solution →The sign of an irreversible process is the presence of a finite:Read the answer and worked solution →

Worked practice questions

A process can only be reversible if every step keeps the system at equilibrium. That requirement is:

  1. Quasi static
  2. Quasi stellar
  3. Quasi solid
  4. Quasi sonic
Show answer and solution

Correct answer: A. Quasi static

1. The system must never be far from balance. 2. Each step happens very slowly. 3. That requirement is quasi static. _Source: OpenStax University Physics Volume 2, Chapter 4, The Second Law of Thermodynamics._

Open this question →

A reversible process is best described as:

  1. An inner
  2. An ideal
  3. An icy
  4. An idle
Show answer and solution

Correct answer: B. An ideal

1. It is used as a reference case. 2. It hardly ever occurs in practice. 3. So it is an ideal process. _Source: OpenStax University Physics Volume 2, Chapter 4, The Second Law of Thermodynamics._

Open this question →

In reality, almost all real processes are:

  1. Irreversible
  2. Irregular
  3. Irritating
  4. Irrelevant
Show answer and solution

Correct answer: A. Irreversible

1. Something in the surroundings always changes. 2. The original state cannot be fully restored. 3. So real processes are irreversible. _Source: OpenStax University Physics Volume 2, Chapter 4, The Second Law of Thermodynamics._

Open this question →

How to practise

  1. Choose a HAL (Hindustan Aeronautics) question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.