Technical Civil

2021-05-21 06:01:57 Pitot Tube (Total head tube)

It is used to measure velocity of flow at any point in a pipe or channel.

It is based on conservation of kinetic head into pressure head.

The point at which velocity reduces to zero is called stagnation point.

Coefficient of velocity :- 0.98

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2021-05-21 05:58:36 #Motivation
आप ठहर जाएंगे तो चलेगा आपकी सोच नहीं ठहरनी चाहिए क्योंकि सोच ठहर गयी तो जिंदगी बिना किसी सोच के गुजर जाएगी
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#Motivation
If you stop then you should not stop thinking because if you stop thinking, life will pass without any thought.
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2021-05-20 16:27:10 Orifice meter

It is used to measure discharge

It has more energy loss

Coefficient of discharge (cd) :- 0.63 - 0.76

The coefficient of discharge for orificemeter is much smaller than that for a venturimeter.

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2021-05-20 16:26:11 Venturimeter

It measures rate of flow (discharge).

Angle of convergence:- 20° - 30°

Angle of divergence:- 6° - 7°

Angle of divergence should not be greater than 7° to avoid flow separation

Coefficient of discharge (cd):- 0.94 - 0.98

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2021-05-20 16:24:48 Join @Technical_civil ओपन / कमेंट

2021-05-20 13:27:47 DSSSB result out ओपन / कमेंट

2021-05-20 11:44:52 Surface Tension (σ)

It is force per unit length (N/m)

It is due to cohesion only.

For water-air interface at 20 ℃ it's value is 0.0736N/m.

Pressure inside jet :- 2σ/d

Pressure inside drop (sphere) :- 4σ/d

Pressure inside bubble :- 8σ/d

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2021-05-20 06:55:26 # Motivation
सफल लोग दूसरों से अलग नहीं होते बल्कि उनकी सोच दूसरों से अलग होती है
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2021-05-20 05:03:39 NTPC Recruitment through GATE 2021

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◆ Starting Date of Submitting Application:- 21 May 2021

◆ Last Date of Submitting Application:-10 June 2021

◆ Engineering Executive Trainee
Total Post:- 280 Posts
◆ Details Notification shortly Out:- 21.05.2021


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2021-05-19 18:01:27 Types of Non Newtonian fluid

Dilatant Fluid (Shear Thickening Fluid) :- Fluid for which apparent viscosity increases with du/dy are called dilatant fluid. e.g. Butter, Quick sand.

Pseudoplastic Fluid (Shear Thinning Fluid) :-Fluid for which apparent viscosity decreases with du/dy are called pseudoplastic fluid e.g. Paper pulp, Rubber solution, Lipsticks, Paints, Blood, Polymetric solutions etc.

Bingham plastic :- Bingham plastic fluids require certain minimum shear stress before they start flowing. e.g. Sewage sludge, Drilling mud , Tooth paste and Gel

Thixotropic Fluids :- Viscosity increases with time e.g. Printers ink and Enamels.

Rheopectic Fluids :- Viscosity decreases with time. e.g. Gypsum solution in water & Bentonite solution

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