All India Trade Test – 2024

Electronics Mechanic – First Year – Set 1

Total Questions: 75
Maximum Marks: 150
Marks per Question: 2
Negative Marking: No

<h2>Part 1: Trade Theory (Questions 1–38)</h2>

Question 1. What is the shape of mandatory signs?

<ol type="A">
<li>Square</li>
<li>Circular</li>
<li>Triangular</li>
<li>Rectangular</li>
</ol>

Question 2. Which type of toe cap is used to prevent the feet from being crushed while moving equipment?

<ol type="A">
<li>Steel toe cap</li>
<li>Plastic toe cap</li>
<li>Rubber toe cap</li>
<li>Leather toe cap</li>
</ol>

Question 3. What treatment is available for a person suffering from electric shock?

<ol type="A">
<li>Give water to drink</li>
<li>Keep the victim cool</li>
<li>Cover the victim with a coat</li>
<li>Move the victim to a well-ventilated place</li>
</ol>

Question 4. Which fire extinguisher is used for Class C fires?

<ol type="A">
<li>Foam type</li>
<li>Water jet</li>
<li>Dry powder type</li>
<li>Carbon dioxide</li>
</ol>

Question 5. Which fire extinguisher is used for Class A fires?

<ol type="A">
<li>Foam type</li>
<li>Water jet</li>
<li>Dry powder type</li>
<li>Carbon dioxide</li>
</ol>

Question 6. Which method of extinguishing fire involves covering it with a layer of foam?

<ol type="A">
<li>Cooling</li>
<li>Starving</li>
<li>Smothering</li>
<li>Heating</li>
</ol>

Question 7. What is the purpose of a screwdriver?

<ol type="A">
<li>To hold a screw</li>
<li>To tighten or loosen a screw</li>
<li>To tighten or loosen a bolt</li>
<li>To tighten or loosen a rivet</li>
</ol>

Question 8. What is a wood rasp file used for?

<ol type="A">
<li>Making 90° corners</li>
<li>Cutting metals</li>
<li>Finishing flat edges</li>
<li>Rough preliminary work</li>
</ol>

Question 9. Which material is used to make an instrument cabinet?

<ol type="A">
<li>Wood</li>
<li>Plastic</li>
<li>Hard rubber</li>
<li>Sheet metal</li>
</ol>

Question 10. Which tool is used to make a funnel-shaped tapered seam?

<ol type="A">
<li>Vice</li>
<li>Angle steel</li>
<li>Hatchet stake</li>
<li>Blow horn stake</li>
</ol>

Question 11. Which angle can be checked using a try square?

<ol type="A">
<li>45°</li>
<li>60°</li>
<li>75°</li>
<li>90°</li>
</ol>

Question 12. What is the maximum size of a drill bit used in an electric hand drilling machine?

<ol type="A">
<li>0.35 mm</li>
<li>1.5 mm</li>
<li>3.5 mm</li>
<li>6.5 mm</li>
</ol>

Question 13. In the sawing operation shown in the figure, what does the arrow marked ‘X’ indicate?

<ol type="A">
<li>Direction of cutting</li>
<li>Direction of pressure</li>
<li>Reverse position of the blade</li>
<li>Direction of blade movement</li>
</ol>

The relevant figure is provided on page 4 of the original PDF. Insert the original figure here.

Question 14. Which PPE is used for protection against high noise levels?

<ol type="A">
<li>Helmet</li>
<li>Safety shoes</li>
<li>Hand screen</li>
<li>Earmuffs</li>
</ol>

Question 15. Identify the tool shown in the figure.

<ol type="A">
<li>Hammer</li>
<li>Scriber</li>
<li>Centre punch</li>
<li>Tweezers</li>
</ol>

The tool figure is provided on pages 4–5 of the original PDF. Insert the original figure here.

Question 16. What is the shape of a prohibition sign?

<ol type="A">
<li>Square</li>
<li>Circular</li>
<li>Triangular</li>
<li>Rectangular</li>
</ol>

Question 17. What is a scriber used for on a sheet of metal?

<ol type="A">
<li>Bending</li>
<li>Cutting</li>
<li>Marking</li>
<li>Joining</li>
</ol>

Question 18. According to BIS, which protective equipment is included in PPE 1?

<ol type="A">
<li>Helmet</li>
<li>Safety shoes</li>
<li>Hearing protection</li>
<li>Arm and hand protection</li>
</ol>

Question 19. What is the electrical conductivity of gold?

<ol type="A">
<li>56%</li>
<li>67%</li>
<li>94%</li>
<li>100%</li>
</ol>

Question 20. What is the unit of electric charge?

<ol type="A">
<li>Volt</li>
<li>Hertz</li>
<li>Ampere</li>
<li>Coulomb</li>
</ol>

Question 21. What are electric charges at rest called?

<ol type="A">
<li>Static charges</li>
<li>Kinetic charges</li>
<li>Chemical charges</li>
<li>Electric charges</li>
</ol>

Question 22. What is the movement of electrons in a definite direction through a conductor called?

<ol type="A">
<li>Resistance</li>
<li>Inductance</li>
<li>Conductance</li>
<li>Electric current</li>
</ol>

Question 23. Which of the following materials conducts electricity?

<ol type="A">
<li>Mica</li>
<li>Paper</li>
<li>Glass</li>
<li>Copper</li>
</ol>

Question 24. What is the movement of charged particles through a medium called?

<ol type="A">
<li>Current</li>
<li>Voltage</li>
<li>Resistance</li>
<li>Frequency</li>
</ol>

Question 25. What is the specified Vcc voltage of a 4-bit digital switch with four independent lines?

<ol type="A">
<li>1.5 V to 2.2 V</li>
<li>2.3 V to 3.6 V</li>
<li>4.5 V to 5.5 V</li>
<li>6.0 V to 7.5 V</li>
</ol>

Question 26. Which formula is used to calculate conductance?

<ol type="A">
<li>Q/V</li>
<li>I × R</li>
<li>V/I</li>
<li>I/V</li>
</ol>

Question 27. How many electrons are present in one coulomb of electric charge?

<ol type="A">
<li>6.25 × 10⁸ electrons</li>
<li>6.25 × 10¹² electrons</li>
<li>6.25 × 10¹⁶ electrons</li>
<li>6.25 × 10¹⁸ electrons</li>
</ol>

Question 28. Why is a covering provided over an electrical conductor?

<ol type="A">
<li>To increase current flow</li>
<li>To decrease current flow</li>
<li>To reduce the voltage rating</li>
<li>To protect it from weather effects</li>
</ol>

Question 29. Which form of energy is converted into electrical energy in a hydroelectric power station?

<ol type="A">
<li>Thermal energy</li>
<li>Light energy</li>
<li>Chemical energy</li>
<li>Mechanical energy</li>
</ol>

Question 30. What is the percentage of electrical conductivity of copper?

<ol type="A">
<li>56%</li>
<li>67%</li>
<li>94%</li>
<li>100%</li>
</ol>

Question 31. What are the fundamental properties of insulating materials?

<ol type="A">
<li>Length and cross-sectional area</li>
<li>Low resistance and thermal temperature</li>
<li>Temperature and electrical hazards</li>
<li>Insulation resistance and dielectric strength</li>
</ol>

Question 32. Which materials are used to make semiconductors?

<ol type="A">
<li>Gallium and indium</li>
<li>Silver and aluminium</li>
<li>Arsenic and antimony</li>
<li>Silicon and germanium</li>
</ol>

Question 33. Why is the insulation coating not damaged when a wire is bent?

<ol type="A">
<li>Due to the resistance of the wire</li>
<li>Due to high current flow</li>
<li>Due to the elastic properties of the insulation</li>
<li>Due to the strength of the wire material</li>
</ol>

Question 34. What happens to current flow when the diameter of a conductor is increased?

<ol type="A">
<li>Resistance increases</li>
<li>It offers greater opposition to current</li>
<li>Voltage drop increases</li>
<li>More current can flow</li>
</ol>

Question 35. What is the percentage of electrical conductivity of aluminium?

<ol type="A">
<li>22%</li>
<li>47%</li>
<li>56%</li>
<li>76%</li>
</ol>

Question 36. Which instrument is used to measure the size of a wire?

<ol type="A">
<li>Try square</li>
<li>Steel rule</li>
<li>Feeler gauge</li>
<li>Standard wire gauge</li>
</ol>

Question 37. Which metal has very good electrical conductivity?

<ol type="A">
<li>Gold</li>
<li>Copper</li>
<li>Silver</li>
<li>Aluminium</li>
</ol>

Question 38. What is the name of the instrument used to measure electrical quantities?

<ol type="A">
<li>Meter</li>
<li>Tester</li>
<li>Micrometer</li>
<li>Vernier calliper</li>
</ol>

<h2>Part 2: Workshop Calculation and Science (Questions 39–44)</h2>

Question 39. What are the two classifications of systems of units?

<ol type="A">
<li>British and Metric</li>
<li>Gravitational and non-gravitational</li>
<li>Fundamental and derived</li>
<li>Metric and International</li>
</ol>

Question 40. Which of the following are fundamental units?

<ol type="A">
<li>Length, mass, volume</li>
<li>Length, mass, time</li>
<li>Length, mass, area</li>
<li>Length, pressure, volume</li>
</ol>

Question 41. What does the letter ‘M’ represent in the MKS system?

<ol type="A">
<li>Mile</li>
<li>Metre</li>
<li>Millimetre</li>
<li>Micron</li>
</ol>

Question 42. How many millimetres are there in one inch?

<ol type="A">
<li>2.54 mm</li>
<li>25.4 mm</li>
<li>24.5 mm</li>
<li>2.45 mm</li>
</ol>

Question 43. What is the square root of 529?

<ol type="A">
<li>13</li>
<li>23</li>
<li>33</li>
<li>43</li>
</ol>

Question 44. Convert the decimal fraction 0.456 into a percentage.

<ol type="A">
<li>45.6%</li>
<li>4.56%</li>
<li>0.456%</li>
<li>0.0456%</li>
</ol>

<h2>Part 3: Engineering Drawing (Questions 45–50)</h2>

Question 45. Identify the conventional symbol for the material shown in the figure.

<ol type="A">
<li>Water</li>
<li>Concrete</li>
<li>Asbestos</li>
<li>Glass</li>
</ol>

The material symbol is provided on page 12 of the original PDF. Insert the original symbol here.

Question 46. Identify the conventional symbol for the material shown in the figure.

<ol type="A">
<li>Lead</li>
<li>Glass</li>
<li>Wood</li>
<li>Paper</li>
</ol>

The material symbol is provided on page 12 of the original PDF. Insert the original symbol here.

Question 47. Identify the tool shown in the figure.

<ol type="A">
<li>Set square</li>
<li>Protractor</li>
<li>French curve</li>
<li>T-square</li>
</ol>

The tool figure is provided on page 13 of the original PDF. Insert the original figure here.

Question 48. Identify the angle of the set square shown in the figure.

<ol type="A">
<li>15° set square</li>
<li>60° set square</li>
<li>30° set square</li>
<li>45° set square</li>
</ol>

The set-square figure is provided on page 13 of the original PDF. Insert the original figure here.

Question 49. What shape is drawn using a compass?

<ol type="A">
<li>Rectangle</li>
<li>Square</li>
<li>Circle</li>
<li>Triangle</li>
</ol>

Question 50. According to standard practice, which is the correct position of the title block?

<ol type="A">
<li>Option A — the first figure on page 14 of the original PDF</li>
<li>Option B — the second figure on page 14 of the original PDF</li>
<li>Option C — the third figure on page 14 of the original PDF</li>
<li>Option D — the fourth figure on page 14 of the original PDF</li>
</ol>

The options for this question are figures. Refer to the original PDF on page 14 to identify the correct option.

<h2>Part 4: Employability Skills (Questions 51–75)</h2>

Question 51. What is the state of being engaged in a job or work called?

<ol type="A">
<li>Employ</li>
<li>Skill</li>
<li>Knowledge</li>
<li>Aptitude</li>
</ol>

Question 52. In which section of a resume are details such as date of birth and permanent address included?

<ol type="A">
<li>Career objective</li>
<li>Personal details</li>
<li>Achievements</li>
<li>Qualifications</li>
</ol>

Question 53. A person with a growth mindset is always ready to do what?

<ol type="A">
<li>Rest</li>
<li>Grow, change and learn</li>
<li>Remain silent</li>
<li>Become rich</li>
</ol>

Question 54. Which job has become obsolete in the last five years?

<ol type="A">
<li>STD booth</li>
<li>Ola</li>
<li>Uber</li>
<li>Swiggy</li>
</ol>

Question 55. What does ethics mean?

<ol type="A">
<li>Determining what is right and wrong in human behaviour</li>
<li>The name of a city</li>
<li>Employability skills</li>
<li>A subject unrelated to society</li>
</ol>

Question 56. What are values?

<ol type="A">
<li>Not being punctual</li>
<li>They motivate our attitudes and actions</li>
<li>Very expensive objects</li>
<li>Everything having the same price</li>
</ol>

Question 57. What is a brief statement of the objectives and principles of the Constitution called?

<ol type="A">
<li>Syllabus</li>
<li>Module</li>
<li>Preamble</li>
<li>Unit</li>
</ol>

Question 58. Identify the incorrect term.

<ol type="A">
<li>Green pollution</li>
<li>Water pollution</li>
<li>Air pollution</li>
<li>Noise pollution</li>
</ol>

Question 59. What is the full form of NAPS?

<ol type="A">
<li>National Apprenticeship Promotion Scheme</li>
<li>National Appointment Promoting Scheme</li>
<li>Non Apprenticeship Promotion Scheme</li>
<li>National Advertising Promotion Scheme</li>
</ol>

Question 60. What is a major change in the manufacturing sector called?

<ol type="A">
<li>Green Revolution</li>
<li>Industrial Revolution</li>
<li>Water Revolution</li>
<li>Food Revolution</li>
</ol>

Question 61. In which century did the First Industrial Revolution begin?

<ol type="A">
<li>18th century</li>
<li>19th century</li>
<li>20th century</li>
<li>21st century</li>
</ol>

Question 62. Which of the following is a hard skill?

<ol type="A">
<li>Ability to learn quickly</li>
<li>Time management</li>
<li>Typing speed of 60 WPM</li>
<li>Spoken English</li>
</ol>

Question 63. What should you do to develop yourself?

<ol type="A">
<li>Know your office</li>
<li>Know yourself</li>
<li>Know your institution</li>
<li>Know your country</li>
</ol>

Question 64. What does time management mean?

<ol type="A">
<li>Completing your work on time</li>
<li>Managing time</li>
<li>A hard skill</li>
<li>Problem-solving</li>
</ol>

Question 65. What should a resume be like?

<ol type="A">
<li>Short and precise</li>
<li>Attractive and colourful</li>
<li>Long and detailed</li>
<li>Full of abbreviations and acronyms</li>
</ol>

Question 66. What is the written description of the duties and responsibilities of a job called?

<ol type="A">
<li>CV</li>
<li>Job description</li>
<li>Resume</li>
<li>Job application</li>
</ol>

Question 67. What is the next step after receiving an interview call?

<ol type="A">
<li>Send the application form</li>
<li>Prepare the resume</li>
<li>Attend the interview</li>
<li>Send the resume</li>
</ol>

Question 68. Choose the appropriate ‘Wh’ word to complete the sentence: “________ animal do you like?”

<ol type="A">
<li>Which</li>
<li>Why</li>
<li>Where</li>
<li>When</li>
</ol>

Question 69. Choose the correct punctuation mark to place after the word ‘Rohan’ in the sentence: “Rohan David and Ram are playing hide and seek.”

<ol type="A">
<li>Comma (,)</li>
<li>Full stop (.)</li>
<li>Slash (/)</li>
<li>Hyphen (-)</li>
</ol>

Question 70. Choose the correct response to the question “How have you been?”

<ol type="A">
<li>Very well, and you?</li>
<li>Thank you, and you?</li>
<li>Same to you.</li>
<li>On vacation, and you?</li>
</ol>

Question 71. Choose the correct response to the question “When did the accident happen?”

<ol type="A">
<li>In the hotel</li>
<li>During travelling</li>
<li>At 10:30 last night</li>
<li>On the table</li>
</ol>

Question 72. Choose the correct tense of the verb: “I ______ music when I was a child.”

<ol type="A">
<li>Learn</li>
<li>Am learning</li>
<li>Will learn</li>
<li>Had learnt</li>
</ol>

Question 73. What is Curriculum Vitae also known as?

<ol type="A">
<li>Circular</li>
<li>Resume</li>
<li>Job application letter</li>
<li>Leave application</li>
</ol>

Question 74. Fill in the blank with the correct comparative adjective: “Your pencil is ______ than mine.”

<ol type="A">
<li>Sharp</li>
<li>Sharper</li>
<li>Blunt</li>
<li>Thick</li>
</ol>

Question 75. Fill in the blank with the correct future tense of the verb: “We ______ to the zoo after breakfast.”

<ol type="A">
<li>Went</li>
<li>Are going</li>
<li>Had gone</li>
<li>Will go</li>
</ol>

<h2>Answer Key</h2>

<table>
<thead>
<tr><th>Question</th><th>Answer</th><th>Question</th><th>Answer</th><th>Question</th><th>Answer</th></tr>
</thead>
<tbody>
<tr><td>1</td><td>B</td><td>26</td><td>D</td><td>51</td><td>A</td></tr>
<tr><td>2</td><td>A</td><td>27</td><td>D</td><td>52</td><td>B</td></tr>
<tr><td>3</td><td>D</td><td>28</td><td>D</td><td>53</td><td>B</td></tr>
<tr><td>4</td><td>C</td><td>29</td><td>D</td><td>54</td><td>A</td></tr>
<tr><td>5</td><td>B</td><td>30</td><td>C</td><td>55</td><td>A</td></tr>
<tr><td>6</td><td>C</td><td>31</td><td>D</td><td>56</td><td>B</td></tr>
<tr><td>7</td><td>B</td><td>32</td><td>D</td><td>57</td><td>C</td></tr>
<tr><td>8</td><td>D</td><td>33</td><td>C</td><td>58</td><td>A</td></tr>
<tr><td>9</td><td>D</td><td>34</td><td>D</td><td>59</td><td>A</td></tr>
<tr><td>10</td><td>D</td><td>35</td><td>C</td><td>60</td><td>B</td></tr>
<tr><td>11</td><td>D</td><td>36</td><td>D</td><td>61</td><td>A</td></tr>
<tr><td>12</td><td>D</td><td>37</td><td>C</td><td>62</td><td>C</td></tr>
<tr><td>13</td><td>B</td><td>38</td><td>A</td><td>63</td><td>B</td></tr>
<tr><td>14</td><td>D</td><td>39</td><td>A</td><td>64</td><td>A</td></tr>
<tr><td>15</td><td>C</td><td>40</td><td>B</td><td>65</td><td>A</td></tr>
<tr><td>16</td><td>B</td><td>41</td><td>B</td><td>66</td><td>B</td></tr>
<tr><td>17</td><td>C</td><td>42</td><td>B</td><td>67</td><td>A</td></tr>
<tr><td>18</td><td>A</td><td>43</td><td>B</td><td>68</td><td>A</td></tr>
<tr><td>19</td><td>B</td><td>44</td><td>A</td><td>69</td><td>A</td></tr>
<tr><td>20</td><td>D</td><td>45</td><td>A</td><td>70</td><td>A</td></tr>
<tr><td>21</td><td>A</td><td>46</td><td>C</td><td>71</td><td>C</td></tr>
<tr><td>22</td><td>D</td><td>47</td><td>B</td><td>72</td><td>D</td></tr>
<tr><td>23</td><td>D</td><td>48</td><td>D</td><td>73</td><td>B</td></tr>
<tr><td>24</td><td>A</td><td>49</td><td>C</td><td>74</td><td>B</td></tr>
<tr><td>25</td><td>C</td><td>50</td><td>A</td><td>75</td><td>D</td></tr>
</tbody>
</table>

Source: Electronics Mechanic – First Year – Set 1, All India Trade Test 2024. The official answer key is provided on page 21 of the original PDF. Questions 13, 15 and 45–50 contain image-based material; refer to the original figures, especially for Question 50.