8. Convert the following octave band measurements to an equivalent A-weighted sound level. Band center Band level frequency (Hz) (dB) 31.5 78 63 76 125 78 250 82 500 81 1,000 80 2,000 80 4,000 73 8,000 65 Answer: 85 5. or 86 dBA

Q: The following data were obtained by stadia measurement. If the height of the instrument is 1.362m…

A: K=96.8m C=0.3m S1=2.216m S2=1.06m

Q: What is the frequency in hertz of a sound having a frequency of 35 cps?

A: To determine: The frequency in hertz of a sound having a frequency of 35 cps.

Q: s this correct? interpolate. Specimen No. Time (second) Penetration (mm) 1. 30 40   180 38   800 34…

A: Initial time corresponding to 25 mm penetration

Q: shaded area shown in the figure Find AJCentroid BMomrat ef laertia With respect to the X-axis.

A:

Q: 2. Arrange the following measurements in descending order:

A:

Q: If the single random error + 17.9 mm, the total :random error in 6 measurements is

A: Consider the given data The total number of measurement=N N= 6  Single random error =e e = ±17.9 mm…

Q: For the T-section below. 30 mm 150 mm 30 mm 150 mm The moment of inertia (in mm) about x is nearest…

A:

Q: 2000 KN 400 kN/m 200 kN/m mm sn -10 -10 m For the beam loaded as shown, what is the location where…

A: It is asked to determine For the given beam and loading, the location of zero slope from the right…

Q: 1. A sound has a magnitude of 40 dB at 100m from its source. What is the magnitude at 50m from the…

A: As per the company guidelines, we are obliged to answer only one question at once. Therefore, please…

Q: Tank is 300mm x 300mm Table 12.2 Variable Head Results Trials Head, h₁ (mm) 1 2 3 200 150 100 Head,…

A: Trials Head, h1 (mm) Head, h2 (mm) h1-h2 Time (sec) Actual Q Theoretical Q Cd 1 200 150 1.89…

Q: What is the area of the below figure if you (know d=20.6? (use trapezoidal rule 32 26 28 24 p.

A: To determine: Area of the given figure (Using trapezoidal rule).

Q: If the magnitude of R is 560 N, what is the value of Q? y (30% 25° R /30%

A:

Q: SITUATION: From the given figure. TABLE GH O03 can be useful. Determine the bearing pressure at the…

A: Total load on footing: P= 1000kN Footing dimensions: length= 4 m, width = 2m Area of base of…

Q: 8.) A asked to make a 545.433 m long unie using a 30 m tape student was that is 0-0028 m too long.…

A:

Q: A distance of 1289.872 m was measured using a steel tape whose actual length is 29.987 m. The preva…

A:

Q: 1.a.find interval latitude moment

A:

Q: A distance between point (A) and (B) is (170m) was measured by a tape of (20m) length, the it was…

A: It is required to find the actual measured distance between A & B i.e (l) Given data, Correct or…

Q: A steel tape of 50 meters long was used to measure the distance AD, which lies on a straight line,…

A: In portion AB Correction due to sag will be applied First under all parts correction due to…

Q: 21). The following consecutive readings were taken along a straight line from station (11+090) to…

A: Given reading are:- 0.680,1.455,1.855,2.330,2.885,3,380,1.055,1.680,2.265,3.540,0.835,0.945,…

Q: Calculate the natural circular frequency o of the illustrated system. W EI

A: To find natural frequency

Q: Locate the centroid of the shaded area in the figure. Measured from the given axes. 2 m 2 m 2 m 2 m…

A:

Q: TRA M P = 30 kips ²6²6²6² M B RB = 85,49 kips VE VB MB 2⁰ w = 3 kips/ft 24 M X2 2⁰ Rc

A: Given data:-

Q: 4. Which among the following is not generic property of sound?

A: To find : Which is not generic property of sound.

Q: 6. Find Ix, ly, radii of gyration and product of inertia. Ø200 y Ø150. 300 300 Ø50- 50 50 300

A:

Q: 10-10. Using the typical noise spectrum for automobiles traveling at 50 to 60 km/h, determine the…

A: Calculate the weighted value of all frequencies as follows:weighted value=band level +weighting…

Q: The micrometer reading of the following figure is: 10 5 15 20 -45 Select one: O a. 21.49 O b. 21.51…

A: Explanation:   In above micrometer readingThe main scale on sleeve contains positions of 0.5mm ,…

Q: stadia

A: This question is from Surveying.

Q: The diagram shown in Fig is the shear force diagram in KN unit, for a beam a) Determine and draw the…

A:

Q: ISK 30k 9.

A: the above beam is determinate beam and its can be analyze by the given equilibrium equation.…

Q: A sphere of radius 0.28 m is pulsating (radius changing uniformly) at a frequency of 544 Hz. The…

A: Solution: Given data: Sphere radius=0.28 mFrequency=544 Hzacoustic pressure measured at a…

Q: Find: Moments of inertia Iu and Iy

A:

Q: Q1. Rainfall occurred for duration of two hours. The magnitudes of the rainfalls with time were…

A:

Q: Manila, Pasig and Caloocan are the top 3 most densely populated cities in the world. (A) True B)…

A:

Q: DEFLECTIONS IN BEAMS USING MOMENT AREA METHOD: Given the beam, determine the following: For simply…

A:

Q: For the cross-section area shown below the centroid is identified by point (C), the area moment of…

A: Solution solution of above question is in second step

Q: Q.1 A line of level is run from B.M.1 (elevation=106.40m) to B.M. 2(elevation=110.50m). The field…

A: Given B.M.1 (elevation=106.40m) B.M. 2(elevation=110.50m). To find elevation of points 2,3,4 and 5

Q: If the vertical intercept on a vertical staff is observed as 1 m From a tachometer the horizontal…

A: Given data : For anallatic lens :Multiplying constant (K)=100Additive constant (C)=0Staff intercept…

Q: Critical duration ? 22 P 17 days 18 days O 16 days 15 days ( 3 R 4 S 50/3 3 10 5 U 3 2

A: Determine the critical duration of the project.

Q: Calculate for the AC (In terms of El) (TWO DECIMAL PLACES) DISREGARD SIGN CONVENTIONN IN INPUTTING…

A: Given, Beam loading diagram   To find : deflection at C

Q: Situation D. Using the figure, supply the data needed in the numbered cell. BS FS 3.06 BS FS BS FS…

A: Given data in question  Back sights Fore sights Elevation of BM To find out  Complete the table.

British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.