1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
IgorC [24]
4 years ago
10

Explain the working of McLeod gauge for measurement of very low pressure.

Engineering
1 answer:
AfilCa [17]4 years ago
4 0

Explanation:

McLeod gauge:

  It is used to measure very low pressure of gas.It measure gas pressure by the help of mercury(Hg).it measure absolute pressure of gas.

McLeod gauge on the principle of Boyle's law.Boyle's law state that ,at constant temperature the pressure of gas is directly proportional to its  volume.From Boyle's law

P_1V_1=P_2V_2

A sample of gas is taken from vacuum then its pressure is measured by help  Hg.

You might be interested in
A manometer connected to a Pitot-static tube has a difference in the height of the two columns of water of 10 cm when the Pitot-
kaheart [24]

Answer:

v = 40 m/s

Explanation:

Difference in the height of the two columns:

h_m = \triangle h = 10 cm \\h_m = 0.1 m

Air density, \rho_{air} = 1.225 kg/m^3

Water density, \rho_{w} = 1000 kg/m^3

The velocity of air flow is given by the equation:

v =  \sqrt{2gh_m (\frac{p_w}{p_{air}} - 1) } \\\\v =  \sqrt{2*9.81*0.1 (\frac{1000}{1.225} - 1) }\\\\v = 40 m/s

7 0
4 years ago
1. Which of the following is the ideal way to apply pressure onto pedals?
Vikki [24]
I think D. By pressing gradually
8 0
3 years ago
Read 2 more answers
Describe the "Bauschinger Effect" on the stress strain behaviour of steel
Rom4ik [11]

Answer:

The Bauschinger effect is the directionally determined change in the elasticity limit of a metal or alloy after primary plastic deformation. If you first deform a metal in one direction so that it is plastically deformed and then deform it in the opposite direction, the elastic limit in the opposite direction is lower.

From the point of view of the dislocation mechanism of plastic deformation, the Bauschinger effect indicates that during repeated deformation, it is easier for dislocations blocked in front of obstacles to move in the direction opposite to their movement during preliminary plastic deformation.

7 0
4 years ago
A developer has requested permission to build a large retail store at a location adjacent to the intersection of an undivided fo
Sergio [31]

Answer:

676 ft

Explanation:

Minimum sight distance, d_min

d_min = 1.47 * v_max * t_total where v_max is maximum velocity in mi/h, t_total is total time

v_max is given as 50 mi/h

t_total is sum of time for right-turn and adjustment time=8.5+0.7=9.2 seconds

Substituting these figures we obtain d_min=1.47*50*9.2=676.2 ft

For practical purposes, this distance is taken as 676 ft

6 0
3 years ago
The asymmetric roof truss is of the type used when a near normal angle of incidence of sunlight onto the south-facing surface AB
marysya [2.9K]

Answer:

Check the explanation

Explanation:

Kindly check the attached image below to see the step by step explanation to the question above.

6 0
4 years ago
Other questions:
  • Brazing, Soldering and Adhesive Bonding are the types of • Liquid Solid System Welding Solid State Welding • Fusion Welding . No
    14·1 answer
  • What is the total inductance of a circuit that contains two 10 uh inductors connected in a parallel?
    6·1 answer
  • What is an air mass?​
    5·2 answers
  • SEICUL UC CULTELL allsvel.
    9·2 answers
  • A primary incentive for entrepreneurs is
    5·1 answer
  • If the middle bend of a three-bend saddle is a 30-degree bend
    6·2 answers
  • Which of the following terms is defined as small bumps and slashes within a fluid power system?
    15·2 answers
  • A concrete block making company is developing an aggregate capacity plan from the following sales forecast for its 6” and 8” con
    7·1 answer
  • Advantage of a sheave wheel in a shaft headgear<br>​
    10·1 answer
  • What is the value of slip in the block rotor test? and why?​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!