15)If the temperature of a steel tape increases, the length of the tape also increases due to the coefficient of thermal expansion.
23)formula for sum of interior angle for a polygon is given by
(n-2)*180
So, for six sided polygon it will be (6-2)*180
=720(degree)
24)A line which is lying in level plane is called level line, so level line is flat (true)
15. When the temperature of a steel tape increases the length of the tape
The length of a steel beam increases by 0.75 mm when its temperature is raised from 22∘C to 35∘C. What is the length of the beam at 22∘C? Please help me out with explanation. Trying to learn as much as I can!
A steel surveyor's tape is to be used to measure the length of a
line. The tape has a rectangular cross section of 0.05 in. by 0.2
in. and a length of 100 ft when T1=60?F and the tension or
pull on the tape is 21 lb . Determine the true length of the line
if the tape shows the reading to be 463.22 ft when used with a pull
of 38 lb at T2=90?F. The ground on which it...
An example of a systematic error is the effect of temperature on a steel tape. 2. Slope, tension, sag and temperature corrections made to field measurements is a form of random errors, T F3. Estimation of air temperature or horizontal position of tape/chain are considered systematic errors. TF4.Examples of mistakes are transposing figures or miscounting the number of full tape lengths in a long measurement. The effect curvature and refraction has on a measurement is considered a random error. T...
You "measure" a distance of twenty meters using a steel measuring tape on a day when the temperature is 15oC hotter than the temperature of the tape when calibrated. What is the "actual" distance measured? The linear thermal coefficient of expansion for steel is equal to 11.2 X 10-6 K-1.
91. Calculate the temperature error in a 76-ft measurement with a steel surveyor's tape at -10 F when the tape is accurate at 60'F. Show your detailed manual work including equations and intermediate answers.
er: 2. When the temperature of the steel plate with the hole in it is increased, (a) the width W will ? increase ? decrease remain unchanged. (b) the thickness T will ? increase ? decrease ? remain unchanged. (c) the diameter D of the hole will increase decrease remain unchanged (d) the density ? of the plate will € increase ? decrease remain unchanged. + . w 3. On a July day in Wisconsin, the temperature of a length...
The Eiffel Tower is a steel structure whose height increases by 19.4 cm when the temperature changes from -9 to +40 °C. What is the approximate height (in meters) at the lower temperature? Number Units
When the air temperature increases, the wave-length of the sound from the tuning fork (1) increases (2) remains the same, or (3) decreases. Why? If the temperature rises from 0 degrees C to 20 degrees C, what is the change in wavelength?
A steel railroad track has a length of 24 m when the temperature is 8◦C. What is the increase in the length of the rail on a hot day when the temperature is 36 ◦C? The linear expansion steel is 11 × 10−6 (◦C)−1. Answer in units of m. 004 (part 2 of 2) 10.0 points Suppose the ends of the rail are rigidly clamped at 8◦C to prevent expansion. Calculate the thermal stress in the rail if its temperature...
I need the answers for all questions
8. A 30 m steel tape of cross-sectional area 0.013 cm* and a total tape weight 1.1 kg was standardized at 20°C and found to be 30.020 m long between its end marks when supported throughout under a 6.8 kg pull. What is the true horizontal length of a recorded distance AB for the conditions given in the following table? (Assume horizontal taping and all full tape lengths except the last.) (12 marks)...