ASSIGNMENT QUESTIONS

Engineering Aid 3 - Beginning Structural engineering guide book
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8-36. What part of a transit is graduated from 0° to 90° in four quadrants? 1. Horizontal circle 2. Vertical circle 3. A-vernier 4. Double vernier Figure 8A IN ANSWERING QUESTIONS 8-37 AND 8-38, REFER TO FIGURE 8A. 8-37. The least reading of the horizontal scale shown is 1. 20 seconds 2. 30 seconds 3. 45 seconds 4. 1 minute 8-38. Reading clockwise, the vernier reads 1. 11°36’00” 2. 28°30’00” 3. 348°20’00” 4. 351°45’00” Figure 8B IN ANSWERING QUESTIONS 8-39 AND 8-40, REFER TO FIGURE 8B. 8-39. The least reading of the horizontal scale shown is 1. 20 seconds 2. 30 seconds 3. 45 seconds 4. 1 minute 8-40. In a counterclockwise direction, the vernier reads 1. 341°45’ 2. 338°15’ 3. 39°10’ 4. 21°47’ 8-41. For a 1-minute theodolite, which of the following actions occur when the circle clamp is in the lever-down position? 1. The circle is clamped and turns with the telescope 2. The circle is clamped and the telescope turns independently 3. The circle is unclamped and the telescope turns independently 4. The circle is unclamped and turns with the telescope 8-42. The lower half of the vertical line on the reticle of a theodolite is split for what purpose? 1. To center triangular-shaped distant objects 2. To determine the width of distant objects 3. To center small distant objects 4. To determine the height of distant objects 8-43. What part of an engineer’s transit serves the same function as the tribrach of the theodolite? 1. Leveling assembly 2. Lower plate 3. Upper plate 4. Standard 8-44. What are the values read from the vertical circle of a theodolite called? 1. Vertical angles 2. Direct angles 3. Zenith distances 4. Direct distances 8-45. What part of a one-second theodolite is used to select whether the angle being read is a vertical or horizontal angle? 1. Circle tangent screw 2. Inverter knob (circle-selector) 3. Circle setting knob 4. Circular level 54

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