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Questions in engineering
📝 Answered - What is the main function of an engine cut-off switch?
📝 Answered - Determine the inverse $z$-transform of $\frac{1+z^{-1}}{1-z^{-1}+0.5 z^{-2}}$. Is this a proper fraction?
📝 Answered - Grading or excavation may include soil remediation like mixing flyash. A. True B. False
📝 Answered - Which is a technology system requiring the driver to maintain constant control of the vehicle? a) Forward collision avoidance b) Automatic emergency braking c) Lane keeping assist d) All of the above
📝 Answered - A belled pier is also called a caisson. A. True B. False
📝 Answered - Grade beams are used with footings. True False
📝 Answered - What is a potential hazard when working on or near a MEWP? A. Being struck by falling objects from above B. Being hit by a moving vehicle C. Being electrocuted by overhead power lines D. All of the above
📝 Answered - Complete the following sentences by filling in the missing word(s). Write only the missing words next to the question number. 1.2.1 If it takes exactly 0,02... for the waveform of a single-phase alternating supply to complete one full cycle, the frequency of that supply is... Hertz. 1.2.2 In the physical layout of the drawing, the draughtsman may... any graphical symbol in the electrical diagram on condition that the meaning or... will not be altered thereby. 1.2.3 IEC publication number (113/617/750/0142) deals with Graphical Symbols for Diagrams. 1.2.4 SANS 10142, Code of Practice for the...
📝 Answered - What injury accident is most likely to result from operating an MEWP without outriggers on an uneven, soft, soil surface? A. Structural collapse of the extending structure onto a bystander B. Electrocution of the operator C. The operator hits his head on an overhead obstruction D. The MEWP tips over and ejects the operator
📝 Answered - Grade beams are used with pier systems. True False
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