CSCS Mock Test 2021 – (100 multiple choice questions)

The CSCS mock test 2021 below features 100 multiple choice questions and answers to help you practice and prepare for your Health, Safety and Environment Test in 2021. These 100 questions will cover all 16 sections of the core knowledge questions you’re likely to face.

There will be no time limit, so take your time and go through each question carefully. Also, let us know in the comments section how you got on. Was it easy? Was it difficult? Share your thoughts on this CSCS mock test 2021 below. Good luck!!!

1. The nozzle of a CO2 fire extinguisher is well known for becoming ___ after use.

Question 1 of 100

2. RIDDOR is a health and safety term related to:

Question 2 of 100

3. Which of the following could help you to protect the environment while you are working?

Question 3 of 100

4. What is the main advantage of using battery-powered tools instead of electrical ones?

Question 4 of 100

5. Battery-powered tools are usually preferred in a construction environment over their electrical counterparts because ___.

Question 5 of 100

6. When should you report a health and safety concern to your supervisor?

Question 6 of 100

7. What should you do if you have to work near an electric cable which has exposed wires?

Question 7 of 100

8. What does this sign mean?

Question 8 of 100

9. A near miss can be described as:

Question 9 of 100

10. What is the MAIN danger when walking next to a 360° crane that’s working near a wall?

Question 10 of 100

11. What should you do if you’re refuelling a piece of equipment and accidentally spill a large amount of fuel on your clothes?

Question 11 of 100

12. Who should a signaller be in contact with at all times while giving signals?

Question 12 of 100

13. Serious accidents should be reported to:

Question 13 of 100

14. Which of these should NOT be used on electrical fires? (Choose 2 answers)

Question 14 of 100

15. What should you do if you think that loud noises at work has damaged your hearing?

Question 15 of 100

16. If you have to work alone you might be asked to ______.

Question 16 of 100

17. Maintaining a clean working environment helps to: (choose 3 answers)

Question 17 of 100

18. What do fire extinguishers with a Black colour band contain?

Question 18 of 100

19. What should you do if the trolley you’re using gets damaged and one of its wheels fall off?

Question 19 of 100

20. In accordance with the guidance on underground service pipes, yellow service pipes carry ___.

Question 20 of 100

21. What does this sign mean?

Question 21 of 100

22. Which of these emergency procedures should be explained at your site induction? (Choose 3 answers)

Question 22 of 100

23. What is the most common way of keeping traffic routes free from pedestrians?

Question 23 of 100

24. What is the primary reason that employees must report any and all accidents that occur on the job site?

Question 24 of 100

25. What does this sign mean?

Question 25 of 100

26. What should you do if you notice a mobile crane about to hit something while lifting a load?

Question 26 of 100

27. If a worker is uncomfortable climbing to a certain height on a specific type of ladder, he or she should:

Question 27 of 100

28. Which of these could help a signaller stay safe while carrying out their job?

Question 28 of 100

29. What should you do if a previous back injury is affecting the job you’re currently doing?

Question 29 of 100

30. Which of these best describes a “tool box talk”?

Question 30 of 100

31. What does this sign mean?

Question 31 of 100

32. How can you check if a residual current device (RCD) connected to a power tool is working correctly?

Question 32 of 100

33. Which of these could be used as a safety precaution if a vehicle has to tip materials into an excavation?

Question 33 of 100

34. What should you do if you need to carry a load down a steep slope?

Question 34 of 100

35. Before you can operate a plant on site you must be ___ and ___. (Choose 2 answers)

Question 35 of 100

36. Who is responsible for reporting unsafe working conditions on a building site?

Question 36 of 100

37. What should you do if you are working and your helmet gets damaged?

Question 37 of 100

38. Which of these items would NOT need to undergo a PAT test in the workplace?

Question 38 of 100

39. What does the signal below mean?

Question 39 of 100

40. Blue and white health and safety signs mean:

Question 40 of 100

41. What should you do if you’re working in a deep trench and you start to feel dizzy?

Question 41 of 100

42. What should you do if there’s a fire on-site and the designated fire warden has given instructions?

Question 42 of 100

43. What type of pollution do hand-held power tools contribute to?

Question 43 of 100

44. For safety purposes, what is the optimal ladder angle when placed against the wall from the ground?

Question 44 of 100

45. What should you do if you need to lift a load which blocks your front view?

Question 45 of 100

46. What health problem is associated with using hand-held vibrating tools?

Question 46 of 100

47. You should not walk behind a lorry while it is reversing because_____.

Question 47 of 100

48. A residual current device (RCD) should be used with 230v tools because ___.

Question 48 of 100

49. You see a lorry parking and notice it has a flat tyre; you should tell the driver because ____.

Question 49 of 100

50. If you have to use a power tool with a rotating blade you should ___.

Question 50 of 100

51. What are three early signs of hand-arm vibration syndrome (HAVS)? (Choose 3 answers)

Question 51 of 100

52. A co-worker is dizzy and complains of feeling faint, what should you do?

Question 52 of 100

53. The responsibility of managing health and safety on a construction site belongs to:

Question 53 of 100

54. What do fire extinguishers with a Red colour band contain?

Question 54 of 100

55. What is the main purpose of a fire extinguisher?

Question 55 of 100

56. What does it mean if your entire work-site has been given a prohibition notice?

Question 56 of 100

57. What should you do if there is a large fire on-site and you have not been trained to use a fire extinguisher?

Question 57 of 100

58. What should you do if you see a mobile plant using a route designated for pedestrians?

Question 58 of 100

59. You have to carry out a job that requires flammable liquid, how much flammable liquid should you take from the stores?

Question 59 of 100

60. You have to work in a corridor which happens to be a fire escape route, you must ensure that_________.

Question 60 of 100

61. What do fire extinguishers with a Blue colour band contain?

Question 61 of 100

62. Why does a work environment need to be kept clean?

Question 62 of 100

63. What type of fire extinguisher should be used on a fuel-based fire?

Question 63 of 100

64. Disposable ear plugs are essential when working in loud environments. How many times should you wear disposable ear plugs?

Question 64 of 100

65. What would you do if you notice a live electrical wire fall into a puddle of water?

Question 65 of 100

66. What should you do if another contractor is carrying out work which affects your safety?

Question 66 of 100

67. What do fire extinguishers with a Cream colour band contain?

Question 67 of 100

68. What equipment should be used when digging close to underground electrical services?

Question 68 of 100

69. All of the following are true about ladders EXCEPT: (choose 2 answers)

Question 69 of 100

70. According to the fire triangle, what 3 factors must be present for a fire to start? (Choose 3 answers)

Question 70 of 100

71. Building sites usually use a 110-volt electricity supply instead of a 230-volt supply because ___.

Question 71 of 100

72. Which two fire extinguishers should you avoid using in confined spaces? (Choose 2 answers)

Question 72 of 100

73. What should you do if a vehicle is lifting materials and you need to walk under the load to get to your place of work?

Question 73 of 100

74. Green safety signs signify:

Question 74 of 100

75. What should you do to protect yourself from electric shock if you have to use a 230-volt tool?

Question 75 of 100

76. Information regarding site traffic rules are usually ___.

Question 76 of 100

77. As work progresses, you realize that the safety rules given at your site induction are clearly out-of-date, you should_______.

Question 77 of 100

78. You’re about to carry out a job which requires a hot-work permit, you must ensure____. (Choose 2 answers)

Question 78 of 100

79. Which of these could be used to verify that a signaller is trained and competent?

Question 79 of 100

80. What should you do before adjusting an electric hand tool?

Question 80 of 100

81. What type of fire extinguisher should be used on cooking oil fires?

Question 81 of 100

82. What does this sign mean?

Question 82 of 100

83. Before using a power tool, you should carry out a visual inspection, what are the 2 main things you should look for? (Choose 2 answers)

Question 83 of 100

84. If someone is using a mobile crane and you need to get pass, you should___.

Question 84 of 100

85. All of the following statements about manual handling are true EXCEPT:  (Choose 2 answers)

Question 85 of 100

86. When referring to ladders, which out of these four statements is NOT true?

Question 86 of 100

87. What should you do if your supervisor asks you to operate a dump truck but you’ve never actually driven one before?

Question 87 of 100

88. What is the best method for minimizing dust at a work site?

Question 88 of 100

89. What should you do if you’re attending a site induction and the presenter says something you don’t understand?

Question 89 of 100

90. What does the term PAT mean?

Question 90 of 100

91. What is the first thing you should do if you discover a fire on-site?

Question 91 of 100

92. Why must workers sign in when entering a site?

Question 92 of 100

93. When are the rules regarding health and safety normally discussed?

Question 93 of 100

94. Site inductions should be attended by:

Question 94 of 100

95. What does this sign mean?

Question 95 of 100

96. What should you do if you doctor says you have work-related hand-arm vibration syndrome (HAVS)?

Question 96 of 100

97. What is considered a safe voltage when using electrical equipment on a construction site?

Question 97 of 100

98. What is the first thing you should do if you notice diesel spilling onto the ground while a colleague is refuelling an excavator?

Question 98 of 100

99. What must do when working in a hearing protection zone?

Question 99 of 100

100. Pedestrians are most likely to get injured by a vehicle on site when the vehicle is ___.

Question 100 of 100



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