DRDO Scientist B Mock Test 2026 – Free Online Test Series

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

DRDO Scientist B
DRDO Scientist B Mock Test 15 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 19 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 16 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 18 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 13 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 20 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 12 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 10 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 17 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 7 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 9 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 14 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 6 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 11 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 8 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 4 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 2 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 3 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 5 (20 Questions)
20 Qs20 Marks20 Min
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DRDO Scientist B
DRDO Scientist B Mock Test 1 (20 Questions)
20 Qs20 Marks20 Min
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Sample DRDO Scientist B Questions

The most frequently occurring fault on a transmission line is / पारेषण लाइन पर सबसे अधिक होने वाला दोष है:
1. single line to ground fault (एकल लाइन से भू दोष)
2. open-circuit fault of all phases (सभी कलाओं का खुला-परिपथ दोष)
3. double line fault (द्वि-लाइन दोष)
4. three-phase fault (त्रि-कला दोष)
The zeroth law of thermodynamics forms the basis for the concept of / ऊष्मागतिकी का शून्यवाँ नियम किस अवधारणा का आधार है?
1. enthalpy (एन्थैल्पी)
2. internal energy (आंतरिक ऊर्जा)
3. entropy (एन्ट्रॉपी)
4. temperature measurement (तापमान मापन)
An op-amp integrator produces an output proportional to / op-amp समाकलक का निर्गत किसके समानुपाती होता है?
1. the square of the input (निवेश के वर्ग के)
2. the derivative of the input (निवेश के अवकलज के)
3. the integral of the input (निवेश के समाकल के)
4. the logarithm of the input (निवेश के लघुगणक के)
A governor in an engine is used to / इंजन में गवर्नर का उपयोग किया जाता है:
1. reduce speed fluctuation within a cycle (चक्र के भीतर गति उतार-चढ़ाव घटाने के लिए)
2. start the engine (इंजन चालू करने के लिए)
3. balance rotating masses (घूर्णी द्रव्यमानों को संतुलित करने के लिए)
4. control the mean speed against load variations (भार परिवर्तनों के विरुद्ध माध्य गति नियंत्रित करने के लिए)

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