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Ż / HDS

UDT tests: Loader cranes (HDS) (Ż / HDS)

Category scope in Polish

Żurawie przewoźne, przenośne i stacjonarne (w tym HDS)

323 questions in this category

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Simulator: 15 questions, 30 minutes and at least 11 correct answers. This format is described by training centres; UDT does not publish it officially.

All questions in this category

  1. 1.Technical equipment subject to technical supervision may be operated on the basis of:#295
  2. 2.Which of the following activities are not part of a UTB operator's duties:#2
  3. 3.Maintenance inspection intervals for technical equipment:#3
  4. 4.Technical supervision is defined as:#4
  5. 5.Who carries out technical inspection of technical equipment?#5
  6. 6.A change to the technical parameters or design of technical equipment is treated as:#6
  7. 7.Who may carry out an agreed repair or modernisation of technical equipment?#7
  8. 8.The Technical Inspection Act specifies the following forms of technical inspection:#8
  9. 9.Who issues the decision authorising operation of technical equipment?#9
  10. 10.An operator of technical equipment may start work when:#10
  11. 11.An operator of technical equipment may start work when:#11
  12. 12.If the person or organisation responsible for operating the equipment fails to comply with technical inspection regulations, that person or organisation:#12
  13. 13.If a threat to human life or health, property and the environment is identified, the inspector:#13
  14. 14.In the event of dangerous damage to technical equipment or an accident, the person or organisation responsible for operating the equipment:#14
  15. 15.An operator qualification certificate may be revoked by:#15
  16. 16.Which of the following are not subject to technical supervision?#16
  17. 17.Technical equipment subject to technical supervision includes:#17
  18. 18.Dangerous damage to technical equipment means:#18
  19. 19.An accident means:#19
  20. 20.Lifting and moving people using technical equipment intended solely for transporting loads requires:#20
  21. 21.Who is responsible for ensuring proper operation and maintenance of technical equipment?#21
  22. 22.Maintenance inspections required by law are carried out by:#22
  23. 23.Who keeps the technical equipment's maintenance log?#23
  24. 24.Acceptance inspections of technical equipment are carried out:#24
  25. 25.Periodic technical examinations are carried out on technical equipment subject to:#25
  26. 26.The absence of the maintenance technician during a technical examination of equipment requires, as a minimum:#26
  27. 27.A candidate seeking to become an operator of technical equipment must:#27
  28. 28.The operator of technical equipment must stop work when:#28
  29. 29.Maintenance inspection intervals for equipment may be specified:#29
  30. 30.The intervals for periodic examinations and ad hoc control examinations of materials handling equipment (UTB) are specified:#30
  31. 31.The duties of an operator of technical equipment include:#31
  32. 32.Technical equipment may be operated on the basis of:#32
  33. 33.After carrying out activities concerning technical equipment, the inspector prepares:#33
  34. 34.Repairs and modernization of technical equipment are carried out by:#34
  35. 35.Who is directly responsible for the safe operation of technical equipment?#35
  36. 36.Where is information on the rules for safely operating the equipment provided?#36
  37. 37.As part of the checks before starting work, the operator:#37
  38. 38.Who issues qualification certificates for operating technical equipment subject to technical inspection?#38
  39. 39.Overloading a UTB during operation:#39
  40. 40.Ad hoc in-service inspections are carried out, among other cases:#40
  41. 41.The operator's duties are specified:#41
  42. 42.Who carries out periodic inspections of technical equipment?#42
  43. 43.Which is a technical inspection body?#43
  44. 44.Qualification certificates authorizing the operation of technical equipment are valid in:#44
  45. 45.The obligation for operators of technical equipment to use personal protective equipment arises from:#45
  46. 46.Under the Council of Ministers regulation on the types of technical equipment subject to technical supervision, technical supervision requirements apply to:#46
  47. 47.The operating instructions need not contain:#47
  48. 48.The equipment's inspection record book must contain:#48
  49. 49.A decision issued by UDT:#49
  50. 50.A person may take the qualification examination if they:#50
  51. 51.After a technical inspection with a positive result, the UDT inspector:#51
  52. 52.Qualification certificates:#52
  53. 53.A person who modifies technical equipment without agreement from the competent technical supervision authority:#53
  54. 54.Anyone who allows technical equipment to be operated without a valid decision authorising operation:#54
  55. 55.The operating instructions are:#55
  56. 56.Operator qualification certificates are not required:#56
  57. 57.A person holding qualification certificates may operate:#57
  58. 58.The operator of technical equipment must:#58
  59. 59.Qualification certificates for operating technical equipment are:#59
  60. 60.An operator who witnesses an accident must:#60
  61. 61.The operator must not:#61
  62. 62.The forms of technical supervision are:#62
  63. 63.Lifting people using equipment designed and manufactured exclusively for lifting loads:#63
  64. 64.Lifting loads using two or more UTB:#64
  65. 65.Being beneath a load that is being moved is:#65
  66. 66.Moving loads over people is:#66
  67. 67.Qualification certificates for operating technical equipment subject to technical supervision are issued by:#67
  68. 68.The examination board informs the candidate of the examination result:#68
  69. 69.The maintenance log should be kept:#69
  70. 70.Job-specific safety instructions:#70
  71. 71.After the qualification certificate for operating the equipment expires, the operator:#71
  72. 72.The validity of a qualification certificate is extended:#72
  73. 73.The lifting capacity of UTB is an equipment parameter directly related to:#73
  74. 74.The net mass of 1000 l of water is approximately:#74
  75. 75.The mass of a load consisting of 40 packages weighing 25 kg each is:#75
  76. 76.The mass of 60 cardboard boxes weighing 20 kg each is:#76
  77. 77.The mass of the load being lifted can be determined using:#77
  78. 78.Information about the equipment's lifting capacity may be provided:#78
  79. 79.The correct unit of lifting capacity is:#79
  80. 80.Crane parameters include:#677
  81. 81.A hydraulic lock (pilot-operated check valve) in a crane's hydraulic system provides protection against:#678
  82. 82.Which protective valve is fitted in the outrigger hydraulic system?#337
  83. 83.Pilot-operated check valves (hydraulic locks) are installed in the following systems:#679
  84. 84.The component that generates pressure in a crane's hydraulic system is:#680
  85. 85.The purpose of a pressure relief valve installed in a crane's hydraulic system is to:#681
  86. 86.Hydraulic safety components include:#341
  87. 87.The safety relief valve in a hydraulic system protects:#682
  88. 88.Hydraulic locks (pilot-operated check valves) installed in the hydraulic systems of loader cranes:#683
  89. 89.So-called hydraulic locks (pilot-operated check valves):#684
  90. 90.A hydraulic directional control valve is installed in a system to:#685
  91. 91.An actuator in a crane's hydraulic system is:#686
  92. 92.The component that protects a hydraulic system against excessive pressure is:#687
  93. 93.The directional control valve in a crane's hydraulic system can be operated:#688
  94. 94.The safety valve in a crane's hydraulic system:#689
  95. 95.Which valve in a crane's hydraulic system can be integrated with the hydraulic cylinder?#690
  96. 96.When oil pressure rises excessively, the pressure relief valve in a crane's hydraulic system directs the oil:#691
  97. 97.Where are pilot-operated check valves, also called hydraulic locks, located?#692
  98. 98.The STOP emergency stop switch:#693
  99. 99.Where is the STOP emergency stop switch located on a loader crane?#694
  100. 100.The crane's slewing mechanism includes:#695
  101. 101.The crane's overturning moment increases:#696
  102. 102.When the stabilizing moment is greater than the overturning moment:#697
  103. 103.The operating radius of a loader crane:#698
  104. 104.Deployed outriggers on a loader crane:#699
  105. 105.The crane's operating radius is the horizontal distance between the attachment point of the load-handling device on the boom and:#700
  106. 106.What is the difference between outreach and a boom?#333
  107. 107.The operating radius can be increased using:#701
  108. 108.A crane's telescopic boom:#702
  109. 109.The crane's load chart shows the relationship between:#703
  110. 110.A loader crane's auxiliary jib:#704
  111. 111.The stability of a loader crane is affected by:#705
  112. 112.Overloading of the crane's load-bearing structure occurs when:#706
  113. 113.The illustration shows:#707
  114. 114.What do the indications in the illustration refer to?#708
  115. 115.The illustration indicates:#709
  116. 116.The illustration informs the operator about:#710
  117. 117.The graphical symbol shown relates to:#711
  118. 118.Moving the lever in direction C, as shown in the diagram, activates:#712
  119. 119.Moving the lever in direction B (as shown in the diagram) activates:#713
  120. 120.Moving the lever in direction C (as shown in the diagram) activates:#714
  121. 121.The graphic symbol shown identifies:#715
  122. 122.The graphic symbol shown identifies:#716
  123. 123.The illustration informs the operator about:#717
  124. 124.Operating a loader crane with a cracked outrigger is:#718
  125. 125.What data does the rated capacity limiter read?#719
  126. 126.The crane outrigger transport lock is used to:#720
  127. 127.Direct control means:#721
  128. 128.Indirect control means:#722
  129. 129.A synchronous boom telescoping system means that:#723
  130. 130.An asynchronous boom telescoping system means that:#724
  131. 131.Safety devices used on crane hooks include:#725
  132. 132.Who specifies the hook wear limits?#726
  133. 133.Unless the manufacturer specifies otherwise, what is the permissible wear at the throat of a crane hook?#727
  134. 134.Unless the manufacturer specifies otherwise, what is the permissible increase in hook throat opening?#728
  135. 135.The technical condition of a hook is determined on the basis of:#729
  136. 136.To recondition a hook, we may:#730
  137. 137.A hook record card is:#731
  138. 138.An auxiliary jib fitted to some cranes is:#732
  139. 139.A crane outrigger is:#733
  140. 140.The rated capacity limiter does not protect against:#734
  141. 141.When pressure is released, the controls should:#735
  142. 142.Criteria for assessing wire rope deterioration include:#736
  143. 143.A reduction in the external diameter of the hoist rope may be caused by:#737
  144. 144.Loader cranes can be installed on:#738
  145. 145.According to the diagram shown, the crane's telescopic boom consists of:#739
  146. 146.Parts of a hook include:#740
  147. 147.A crane with a personnel basket mounted directly on its boom, in accordance with the operating instructions, may be operated by a person who:#741
  148. 148.Using the diagram, identify which dangerous movements will be disabled when the load limiter activates:#742
  149. 149.Based on the drawing, identify which dangerous movements will be disabled when the load limiter activates:#743
  150. 150.Operating the crane's outriggers while a load is suspended from its hook is:#744
  151. 151.How is load monitoring implemented in loader cranes?#745
  152. 152.Unless the manufacturer specifies otherwise, the rated capacity limiter should activate when the load mass exceeds:#746
  153. 153.The wind speed above which operating a loader crane is prohibited:#747
  154. 154.The maximum slope of the ground on which the crane is set up must not exceed:#748
  155. 155.Before setting up the crane at a new workplace, the operator should:#749
  156. 156.The safe distance for setting up a crane from the edge of an excavation depends on:#750
  157. 157.Before starting unloading work, the crane operator must:#751
  158. 158.When assessing the crane's technical condition before starting work, the operator:#752
  159. 159.When assessing the crane's technical condition before starting work, the operator:#753
  160. 160.When assessing the technical condition of the hydraulic system, the operator:#754
  161. 161.Leakage in a crane's hydraulic system may manifest itself as:#755
  162. 162.The operator checks the hydraulic system's oil level:#756
  163. 163.Unless the manufacturer specifies otherwise, the internal leakage test of the hydraulic system is performed:#757
  164. 164.Telescoping the boom assembly with a suspended load is:#758
  165. 165.While the slewing mechanism is operating, the crane's stability:#759
  166. 166.Unless the manufacturer specifies otherwise, the operation of the crane's pilot-operated check valves (hydraulic locks) should be checked:#760
  167. 167.Immediately after finishing work, the crane operator must:#761
  168. 168.An excessively swinging load can cause:#762
  169. 169.The safe method of checking the pressure relief valve on loader cranes with direct controls is carried out:#763
  170. 170.Who establishes the criteria and conditions for correctly testing the hydraulic system?#764
  171. 171.Using the diagram, determine beyond which working radius the rated capacity limiter will activate on the crane designated 600 T with a suspended load of 700 kg:#765
  172. 172.Using the diagram, determine at which working radius the crane's rated capacity limiter will activate with a suspended load of 3320 kg:#766
  173. 173.May the operator check the rated capacity limiter on a portable crane?#767
  174. 174.Operating a crane without outriggers:#768
  175. 175.Operating a crane during a thunderstorm with lightning is:#769
  176. 176.The minimum temperature below which the crane must not be operated:#770
  177. 177.The maximum permissible wind speed at which the crane can be operated safely:#771
  178. 178.The selection of the appropriate operating program for the crane's load limiter may be affected by:#772
  179. 179.Placing spreader pads under the crane outriggers:#773
  180. 180.Outrigger pads are not used:#774
  181. 181.If there is insufficient space to deploy the outriggers, the crane operator may:#775
  182. 182.The crane outriggers must be deployed:#776
  183. 183.Based on the drawing, identify the correct measurement of the minimum distance from the excavation:#777
  184. 184.The safe crane setup distance from the excavation edge depends on:#778
  185. 185.Setting up a crane near the edge of an unsupported excavation:#779
  186. 186.The safe distance between a crane and a power line:#780
  187. 187.The mandatory minimum distances from power lines are established by:#781
  188. 188.What is the safe distance between a crane or its load and the outermost conductors of power lines with a nominal voltage from 1 kV to 15 kV?#782
  189. 189.What is the safe distance between a crane or its load and the outermost conductors of a power line with a nominal voltage above 110 kV?#783
  190. 190.Based on the diagram, identify the correct measurement of the minimum distance from the power line:#784
  191. 191.Operating a crane near a power line at a distance smaller than the permitted clearance is:#785
  192. 192.The permitted working clearance between a crane and an overhead power line is measured:#786
  193. 193.When lifting and moving loads, it is prohibited to:#787
  194. 194.Lifting loads whose mass exceeds the permissible lifting capacity is:#788
  195. 195.Unless the manufacturer specifies otherwise, hydraulic locks on cranes with direct controls are tested as follows:#789
  196. 196.When unloading materials from mobile transport vehicles, the operator must ensure that:#790
  197. 197.In which places is a slinger's presence prohibited or inappropriate?#791
  198. 198.During lifting operations, the crane operator:#792
  199. 199.Operating a crane with a hook missing its factory-fitted safety latch is:#793
  200. 200.Using the diagram, select the appropriate outreach and test load for the crane's internal leakage test:#794
  201. 201.Unless otherwise specified by the manufacturer, the maximum permissible load sinking for construction loader cranes with an outreach below 12 m during the leakage test is:#795
  202. 202.Unless otherwise specified by the manufacturer, the maximum permissible load sinking for timber loader cranes during the leakage test is:#796
  203. 203.When assessing the technical condition of the crane's control panel, the operator checks:#797
  204. 204.During daily servicing, the crane operator must:#798
  205. 205.If the operator cannot observe the load's entire travel path:#799
  206. 206.When operating a timber loader crane:#800
  207. 207.An excessively swinging load can cause:#801
  208. 208.Using the diagram, determine the maximum height to which a load weighing 3.4 t can safely be lifted:#802
  209. 209.Based on the diagram, determine the maximum distance to which a load weighing 3.4 t can safely be placed:#803
  210. 210.Based on the diagram, identify the correct operating parameters of the crane:#804
  211. 211.Based on the diagram, identify the correct operating parameters of the crane:#805
  212. 212.Based on the diagram, identify the maximum load weight that can be placed at a distance of 10 m:#806
  213. 213.Based on the diagram, identify the maximum load weight that can be placed at a distance of 20 m:#807
  214. 214.Based on the diagram, determine the maximum height to which a load weighing 3.32 t can safely be placed:#808
  215. 215.Using the diagram, determine the maximum distance at which a load weighing 3.32 t can be safely placed:#809
  216. 216.Based on the diagram shown, identify the correct operating parameters of the crane:#810
  217. 217.Using the diagram, identify the correct operating parameters of the crane:#811
  218. 218.Based on the diagram, identify the maximum load mass that can be placed at a distance of 4 m:#812
  219. 219.Using the diagram, identify the maximum mass of a load that can be placed at a distance of 13 m:#813
  220. 220.Using the diagram, determine the maximum height at which a load weighing 890 kg can be safely placed:#814
  221. 221.Based on the diagram shown, determine the maximum distance at which a load weighing 620 kg can safely be placed:#815
  222. 222.Based on the diagram shown, identify the correct operating parameters of the crane:#816
  223. 223.Based on the diagram shown, identify the correct operating parameters of the crane:#817
  224. 224.Based on the diagram shown, identify the maximum load mass that can be placed at a horizontal distance of 4 m and a height of 5.8 m:#818
  225. 225.Based on the diagram shown, identify the maximum load mass that can be placed at a horizontal distance of 1.8 m and a height of 4 m:#819
  226. 226.Based on the diagram shown, determine the maximum distance at which a load weighing 3980 kg can safely be placed:#820
  227. 227.Based on the diagram shown, identify the correct operating parameters of the crane:#821
  228. 228.Based on the diagram shown, identify the correct operating parameters of the crane:#822
  229. 229.Based on the diagram shown, identify the maximum load mass that can be placed at a horizontal distance of 7.2 m:#823
  230. 230.Based on the diagram shown, determine the maximum horizontal distance at which a load of 3790 kg can be safely placed:#824
  231. 231.Based on the diagram shown, determine the maximum height at which a load of 3790 kg can be safely placed:#825
  232. 232.Based on the diagram shown, identify the correct operating parameters of the crane:#826
  233. 233.Based on the diagram shown, identify the correct operating parameters of the crane:#827
  234. 234.Based on the diagram shown, identify the maximum load mass that can be placed at a distance of 12.25 m:#828
  235. 235.Based on the diagram shown, identify the maximum load mass that can be placed at a distance of 17 m:#829
  236. 236.Based on the diagram shown, identify the correct operating parameters of the crane:#830
  237. 237.Based on the diagram shown, determine the maximum distance at which a load weighing 1300 kg can safely be placed using the crane designated 700T:#831
  238. 238.Based on the diagram shown, determine the maximum distance at which a load weighing 1350 kg can safely be placed using the crane designated 600T:#832
  239. 239.Based on the diagram, identify the correct operating parameters of the cranes:#833
  240. 240.Based on the diagram, identify the correct operating parameters of the crane:#834
  241. 241.Based on the diagram, identify the maximum load mass that the crane designated 600T can place at a distance of 10 m:#835
  242. 242.Based on the diagram, identify the maximum load mass that the crane designated 600T can place at a distance of 8 m:#836
  243. 243.Based on the diagram, determine the maximum distance at which a load weighing 1290 kg can be safely placed:#837
  244. 244.Based on the diagram, determine the maximum height at which a load weighing 1290 kg can be safely placed:#838
  245. 245.Based on the diagram shown, identify the correct operating parameters of the crane:#839
  246. 246.Based on the diagram shown, identify the correct operating parameters of the crane:#840
  247. 247.Based on the diagram shown, identify the maximum load mass that can be placed at a distance of 12.35 m:#841
  248. 248.Based on the diagram shown, identify the maximum load mass that can be placed at a distance of 6.35 m:#842
  249. 249.Based on the diagram shown, determine the maximum distance at which a load of 6470 kg can safely be placed:#843
  250. 250.Based on the diagram shown, determine the maximum height at which a load of 6470 kg can safely be placed:#844
  251. 251.Using the diagram shown, identify the correct crane operating parameters:#845
  252. 252.Using the diagram shown, identify the correct crane operating parameters:#846
  253. 253.Using the diagram shown, identify the maximum load mass that can be placed at a distance of 13.9 m:#847
  254. 254.Using the diagram shown, identify the maximum load mass that can be placed at a distance of 6.95 m:#848
  255. 255.The illustration shows the identification tag of:#538
  256. 256.The illustration shows the identification tag of:#539
  257. 257.The illustration below shows the identification marking of:#649
  258. 258.A lifting beam is used to:#541
  259. 259.The minimum lifting capacity of a lifting appliance raising a 24 t load using the illustrated lifting beam is:#542
  260. 260.The abbreviation DOR means:#543
  261. 261.A load must be suspended from a ramshorn hook:#544
  262. 262.A reduction in the DOR of a multi-leg sling depends on:#545
  263. 263.Using the illustration shown, identify value A for the wire rope sling:#849
  264. 264.Based on the diagram, identify value A for the wire rope sling:#547
  265. 265.The illustration shows:#850
  266. 266.Based on the diagram, identify value A (angle α) for the two-leg sling:#549
  267. 267.Based on the diagram, identify value A (angle α) for a two-leg sling:#851
  268. 268.Based on the diagram, identify value A (DOR depending on angle α) for the two-leg sling:#551
  269. 269.Based on the diagram, identify value A (DOR depending on angle α) for a two-leg sling:#552
  270. 270.Based on the diagram, identify value A (DOR depending on the slinging method) for a webbing sling:#553
  271. 271.Based on the diagram, identify value A (DOR depending on the slinging method) for a webbing sling:#554
  272. 272.Based on the diagram, identify value A (DOR depending on the slinging method) for a webbing sling:#555
  273. 273.Indicate which method of suspending the load is correct:#556
  274. 274.Indicate which method of suspending the load using a wire rope sling is correct:#557
  275. 275.The illustration shows:#852
  276. 276.The illustration shows:#853
  277. 277.The special-purpose lifting attachment shown in the illustration is used for:#560
  278. 278.The special-purpose lifting attachment shown in the illustration is used for:#561
  279. 279.Who is responsible for selecting the correct lifting sling?#562
  280. 280.Lifting slings are subject to periodic inspections at the following intervals:#563
  281. 281.The choice of sling type depends on:#564
  282. 282.Before starting work, the operator must:#565
  283. 283.A lifting sling is:#566
  284. 284.Lifting slings can be classified:#567
  285. 285.The DOR of a webbing sling can be determined by:#568
  286. 286.Using a sling without an identification plate:#569
  287. 287.Chain slings:#570
  288. 288.The maximum permissible included angle α between sling legs is:#571
  289. 289.The maximum angle β in a sling is:#572
  290. 290.Identify the incorrect method of suspending a load using a wire rope sling:#573
  291. 291.Identify which method of attaching the hook is correct:#854
  292. 292.Identify the incorrect ways of attaching the hook:#575
  293. 293.Based on the diagram, identify value A for a two-leg sling:#855
  294. 294.Based on the diagram, identify value A for a two-leg sling:#856
  295. 295.Unless the manufacturer specifies otherwise, the permissible wear limits for sling hooks are:#578
  296. 296.Unless the manufacturer specifies otherwise, the permissible number of broken wires in a wire rope sling is:#579
  297. 297.Which of the following defects disqualify a wire rope sling from further use?#580
  298. 298.As the included angle α increases:#581
  299. 299.For lifting slings, angles α and β:#582
  300. 300.When lifting items with sharp edges using a webbing sling, you must:#583
  301. 301.The DOR of a multi-leg sling is:#584
  302. 302.Using slings at temperatures above 100°C is:#585
  303. 303.The image below shows:#586
  304. 304.The maximum DOR of the sling shown is:#587
  305. 305.The maximum working load limit (DOR) of the sling shown at an apex angle β of 60° is:#588
  306. 306.The maximum working load limit (DOR) of the sling shown at an apex angle β of 45° is:#589
  307. 307.Based on the drawing, indicate the correct way to attach the hook:#590
  308. 308.The maximum mass of the load lifted at an angle β of 55° must not exceed:#650
  309. 309.The maximum mass of the load lifted at an angle β of 40° must not exceed:#651
  310. 310.The maximum mass of the load lifted at an angle β of 50° must not exceed:#652
  311. 311.The maximum mass of the load lifted at an angle β of 65° must not exceed:#653
  312. 312.Based on the illustration, determine the maximum load mass that can be lifted using a four-leg sling:#595
  313. 313.Based on the illustration, determine the maximum load mass that can be lifted using a four-leg sling:#596
  314. 314.Based on the illustration, determine the maximum load mass that can be lifted using a four-leg sling:#597
  315. 315.Which of the illustrated special lifting attachments can be used to lift metal plates in a vertical position:#598
  316. 316.Which of the illustrated lifting accessories can be used to lift metal plates in a horizontal position:#599
  317. 317.Which of the lifting accessories shown can be used to lift steel I-beams?#600
  318. 318.Which of the lifting accessories shown can be used to lift long steel bars?#601
  319. 319.Which of the lifting accessories shown can be used to lift loads stored on transport pallets?#602
  320. 320.Which of the lifting accessories shown can be used to lift a metal sheet in a horizontal position?#603
  321. 321.In the image below, the symbol α denotes:#604
  322. 322.In the photo below, the symbol β indicates:#654
  323. 323.Which of the following requirements must a lifting sling used to move a load meet:#857

Questions and answers

How many questions are in this category?

Loader cranes (HDS): 323 questions in this category. Sample questions published by UDT, with our answer key, translations and explanations.

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The first 30 questions in learning mode and 1 test per day are free. Individual question pages are also free to read.

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Simulator: 15 questions, 30 minutes and at least 11 correct answers. This format is described by training centres; UDT does not publish it officially.

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