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RRC Apprentice Mock Test 2026 – Free Online Test Series

This page lists all 5 free RRC Apprentice mock tests on Sarkari Results Now. A typical test has about 20 questions with a 20-minute timer. Tests follow the latest RRC Apprentice exam pattern and are free to attempt. Attempt them in order, review the answers after each test and track your progress to find weak topics before the real exam.

All RRC Apprentice Mock Tests

Sample RRC Apprentice Questions

  1. The efficiency of a Carnot engine operating between 500 K and 300 K is

    1. 83%
    2. 40%
    3. 60%
    4. 30%

  2. Using the Routh-Hurwitz criterion, a system is stable if

    1. the number of sign changes equals the order
    2. there is a zero in the first column
    3. all elements of the first column have the same sign
    4. the first column elements alternate in sign

  3. For the same compression ratio and heat input, the air-standard efficiency is

    1. higher for Otto cycle than for Diesel cycle
    2. independent of compression ratio in both
    3. higher for Diesel cycle than for Otto cycle
    4. same for both cycles

  4. In the ideal Diesel cycle, heat addition takes place at

    1. constant volume
    2. constant entropy
    3. constant pressure
    4. constant temperature

Attempt the full test above to see the correct answers.