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ISRO Scientist Engineer Mock Test 2026 – Free Online Test Series

This page lists all 20 free ISRO Scientist Engineer mock tests on Sarkari Results Now. A typical test has about 20 questions with a 20-minute timer. Tests follow the latest ISRO Scientist Engineer 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 ISRO Scientist Engineer Mock Tests

Sample ISRO Scientist Engineer Questions

  1. Find the simple interest on Rs 6000 at 6% per annum for 5 years. / ₹6000 पर 6% वार्षिक दर से 5 वर्ष का साधारण ब्याज ज्ञात कीजिए।

    1. ₹1795
    2. ₹1797
    3. ₹1800
    4. ₹1802

  2. A cycloconverter converts / साइक्लोकन्वर्टर परिवर्तित करता है:

    1. DC at one level to DC at another (एक स्तर की DC को दूसरे स्तर की DC में)
    2. AC at one frequency directly to AC at another frequency (एक आवृत्ति की AC को सीधे दूसरी आवृत्ति की AC में)
    3. AC to DC (AC से DC में)
    4. DC to AC (DC से AC में)

  3. The air-standard efficiency of an Otto cycle with compression ratio 8 and γ = 1.4 is approximately / संपीडन अनुपात 8 और γ = 1.4 वाले ऑटो चक्र की वायु-मानक दक्षता लगभग है:

    1. 43.5%
    2. 87.5%
    3. 56.5%
    4. 68.2%

  4. A program that disguises itself as legitimate software but is harmful is called a: / वैध सॉफ़्टवेयर का रूप धरकर हानि पहुँचाने वाला प्रोग्राम कहलाता है:

    1. Trojan horse (ट्रोजन हॉर्स)
    2. Firewall (फ़ायरवॉल)
    3. Compiler (कंपाइलर)
    4. Router (राउटर)

Attempt the full test above to see the correct answers.

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