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Sazid AhmadPundit

Asked: 2 months agoIn: Mechanical Engineering

Determine the magnitude and direction of the resultant force acting on the radial gate shown in Fig. 3.68, if its length is 4 m

Determine the magnitude and direction of the resultant force acting on the radial gate shown in Fig. 3.68, if its length is 4 m.

Mazurek GravityPundit

Asked: 2 months agoIn: Mechanical Engineering

Water is flowing through the pipe having diameter 40 cm and 20 cm at section 1 and 2 respectively. The rate of flow through pipe is 30 lit/sec. The section 1 is 8 m above datum and section 2 is 5 m above datum. If the pressure at section 1 is 40 N/cm2, find the intensity of pressure at section 2.

Water is flowing through the pipe having diameter 40 cm and 20 cm at section 1 and 2 respectively. The rate of flow through pipe is 30 lit/sec. The section 1 is 8 m above datum and section ...Read more

VishalProfessional

Asked: 3 months agoIn: Mechanical Engineering

An aeroplane is flying at 21·5 m/s at a low alti- tude where the velocity of sound is 325 m/s. At a certain point just outside the boundary layer of the wings, the velocity of air relative to the plane is 305 m/s. If the flow is frictionless adiabatic determine the pressure drop on the wing surface near this position. Assume γ = 1·4 , pressure of ambient air = 102 kN/m2.

An aeroplane is flying at 21·5 m/s at a low alti- tude where the velocity of sound is 325 m/s. At a certain point just outside the boundary layer of the wings, the velocity of air relative to ...Read more

Sazid AhmadPundit

Asked: 2 months agoIn: Mechanical Engineering

Fig. 3.67 shows a flash board. Find the depth of water h and the compressive force in the strut per metre of the crest at the instant when the water is just ready to tip the flash board.

VishalProfessional

Asked: 2 months agoIn: Mechanical Engineering

The inlet and throat diameter of a horizontal venturimeter are 35cm and 16cm respectively. The liquid flowing through the meter is water. The pressure intensity at inlet is 15.98N/cm2 while the pressure head at throat is 42cm of mercury. Find the rate of flow. Assume that 5% of the differential head is lost between the inlet and throat. Find also the value of Cd for the venturimeter.

The inlet and throat diameter of a horizontal venturimeter are 35cm and 16cm respectively. The liquid flowing through the meter is water. The pressure intensity at inlet is 15.98N/cm2 while the pressure head at throat is 42cm of ...Read more

Mazurek GravityPundit

Asked: 2 months agoIn: Mechanical Engineering

A press has a ram of 150 mm diameter and plunger of 30 mm. the stroke of the plunger is 250 mm and the weight lifted is 600 N. If the distance moved by the weight is 1.20 m in 20 minutes, determine: a) the force applied to the plunger b) power required to drive the plunger c)Number of strokes performed by the plunger.

A press has a ram of 150 mm diameter and plunger of 30 mm. the stroke of the plunger is 250 mm and the weight lifted is 600 N. If the distance moved by the weight is 1.20 ...Read more

Mazurek GravityPundit

Asked: 2 months agoIn: Mechanical Engineering

A Pelton wheel is required to develop 6MW when working under a head of 300m.It rotates with a speed of 550rpm.Assuming jet ratio as 10 and overall efficiency as 85%. Calculate (I) diameter of the wheel (II) quantity of water required (III) number of jets. Assuming suitable values for the velocity coefficient and speed ratio.

A Pelton wheel is required to develop 6MW when working under a head of 300m.It rotates with a speed of 550rpm.Assuming jet ratio as 10 and overall efficiency as 85%. Calculate (I) diameter of the wheel (II) quantity ...Read more

Mazurek GravityPundit

Asked: 2 months agoIn: Mechanical Engineering

A single jet Pelton wheel runs at 300 rpm under a head of 510m. The jet diameter is 200m its deflection inside the bucket is 1650 and its relative velocity is reduced by 15 % due to friction. Find (1) water horsepower (2) resultant force on the bucket (3) brake power if mechanical loses are 3% of power supplied and overall efficiency. Assume suitable values for velocity coefficient and speed ratio.

A single jet Pelton wheel runs at 300 rpm under a head of 510m. The jet diameter is 200m its deflection inside the bucket is 1650 and its relative velocity is reduced by 15 % due to friction. ...Read more

Mazurek GravityPundit

Asked: 2 months agoIn: Mechanical Engineering

A double acting reciprocating pump, running at 100 RPM delivers 0.03 m3 /sec of water. The diameter of the piston and the stroke length are 15 cm and 600 mm, respectively. Further, diameter of piston rod is 1 cm with pump efficiency is 95 %. The pump has to deliver the water to a head of 50 m. Determine theoretical discharge, coefficient of discharge, power input and % slip.

A double acting reciprocating pump, running at 100 RPM delivers 0.03 m3 /sec of water. The diameter of the piston and the stroke length are 15 cm and 600 mm, respectively. Further, diameter of piston rod is 1 ...Read more

Mazurek GravityPundit

Asked: 2 months agoIn: Mechanical Engineering

For a Kaplan turbine with runner diameter 4m, the discharge is 60 m³ /sec and hydraulic and mechanical efficiency are stated to 90% and 94 % respectively. The diameter of the boss is 0.3 times the runner diameter and the speed ratio are 2. Assuming the discharge is free and there is no swirl at outlet calculate the net available head on the turbine, the power developed and specific speed.

For a Kaplan turbine with runner diameter 4m, the discharge is 60 m³ /sec and hydraulic and mechanical efficiency are stated to 90% and 94 % respectively. The diameter of the boss is 0.3 times the runner diameter ...Read more

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Determine the magnitude and direction of the resultant force acting on the radial gate shown in Fig. 3.68, if its length is 4 m

Water is flowing through the pipe having diameter 40 cm and 20 cm at section 1 and 2 respectively. The rate of flow through pipe is 30 lit/sec. The section 1 is 8 m above datum and section 2 is 5 m above datum. If the pressure at section 1 is 40 N/cm2, find the intensity of pressure at section 2.

Fig. 3.67 shows a flash board. Find the depth of water h and the compressive force in the strut per metre of the crest at the instant when the water is just ready to tip the flash board.

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