Question

In: Civil Engineering

A surveyor completes a levelling circuit from a known BM at point A (RL = 37.730...

  1. A surveyor completes a levelling circuit from a known BM at point A (RL = 37.730 m). At the end of the survey, the surveyor finds out that the rod person moved the graduated staff before a BS value was taken at the third change point. The levels obtained are as follows:  

1.857 (RL = 37.567 m), (0.983, 0.354), 0.571, 1.011, 2.151, (1.124, x), 0.890, (0.543, 3.178), 3.808.  

  1. Assuming that the misclosure for the level circuit is 0.000 m, find the probable value of the missing BS value x.   
  2. Is the value of x in part (a) acceptable? Explain. (1 mark)

Book the levels, including the value of x calculated in part (a) using the HPC method and show all arithmetic checks. (1 mark

Solutions

Expert Solution


Related Solutions

The current in an RL circuit drops from 0.89 A to 12 mA in the first...
The current in an RL circuit drops from 0.89 A to 12 mA in the first second following removal of the battery from the circuit. If L is 13 H, find the resistance R in the circuit.
My lab was about an RC circuit and RL circuit, and talking about/showing the relationship of...
My lab was about an RC circuit and RL circuit, and talking about/showing the relationship of voltage and current for a capacitor and inductor by using a theoretically calculated tau in comparison to an experimentally found tau (using current/voltage calculated from 36.8% of initial value) from a simulation and experimentally found tau from the slope of the natural log of the current in the RC circuit and voltage in the RL circuit versus time from the same simulation. My theoretical...
1. When a switch is closed in a RL circuit with a battery, which of the...
1. When a switch is closed in a RL circuit with a battery, which of the following statement is TRUE? Back emf is maximum in the beginning and decreases exponentially with time Back emf is zero in the beginning and increases exponentially with time Current is maximum in the beginning and decreases exponentially with time Current is zero in the beginning and increases exponentially with time 2. When an inductor is connected to an AC voltage source with Vmax= 5...
design and draw the circuit of RL HPF, find the required value of the inductor to...
design and draw the circuit of RL HPF, find the required value of the inductor to get critical Frequency F,r=20KHz, assume the resistor R=(100ohms) and the input Vrms=10V MULTISIM
For a classroom demonstration, a professor built an RL circuit similar to the one shown in...
For a classroom demonstration, a professor built an RL circuit similar to the one shown in the figure, with e m f = 6.00 V, L = 5.80 mH, and R = 3.80 Ω. A rectangular circuit contains a battery of emf ℰ on its left side, with the positive terminal above the negative terminal. An open switch S is on the top side, an inductor L is on the right side, and a resistor R is on the bottom...
Consider a simple RL circuit consisting of an ideal battery with voltage 30 V , a...
Consider a simple RL circuit consisting of an ideal battery with voltage 30 V , a resistor of resistance 15 Ω, an inductor of inductance 7.0 H, and a switch all in series. The switch is initially open. a) Determine the ratio of the voltage across the resistor to the voltage across the inductor when the current has a value of 1.5 A. b) How much time has elapsed if the voltage across the resistor is 20 V ?
1. When an RL circuit is connected to a battery, what happens to the potential difference...
1. When an RL circuit is connected to a battery, what happens to the potential difference across the inductor? It is constant. It is initially at its maximum value and then decreases exponentially with time. It is initially at its maximum value and then decreases linearly with time. It is initially 0 and then increases. 2. If we decrease the resistance in an RL circuit, what happens to the time required for the current to reach, say, 50% of its...
You are given a black box containing an RL series circuit. Using only an oscilloscope and...
You are given a black box containing an RL series circuit. Using only an oscilloscope and a function generator and an extra resistor, what equations would you use to find the following: Unknown inductor value: Unknown Inductor impedance: Unknown black box Resistor value: Once you have these, mathematically, find a power factor of at least .97 by adding a capacitor in parallel to the black box.
In an RL series circuit with L = 1/100 H, R = 20 Ω, and E...
In an RL series circuit with L = 1/100 H, R = 20 Ω, and E = 60 V. Determine the limit of the maximum current reached (At the function you found to determine the current as a function of time apply the limit when t goes to infinity) and determine the time in which it reaches half of that value. Take i (0) = 0 A.
RL Company is a Hong Kong-based company and purchases the raw materials from Germany. RL will...
RL Company is a Hong Kong-based company and purchases the raw materials from Germany. RL will settle the payment of the materials in six months. This payment will be in Euro, RL plans to hedge against a rise in the value of the Euro over the next six months. The spot rate of the Euro is HK$ 8.55. The HK interest rate is 1.5%, and the Euro interest rate is 4.5%. Presume that interest rates remain fixed over the coming...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT