16. A centrifugal pump runs at 1540 rpm and discharges 120 litres per second against a head of 25 melres. If the diameter of the impeller is 25 cm and its width is. 8 cm, find the vane angle at the outer periphery. The manometric efficiency of the pump is 75%. (32° 30)

Q: A vane pump is to have a volumetric displacement of 85000 cubic millimetre. It has a cam ring…

A: Write the given values of this problem. Vd=85000 mm3 or 8.5×10-5 mdc=8.25 cm or 0.0825 mwv=45 mm or…

Q: A 0.190-kg wooden rod is 1.20 m long and pivots at one end. It is held horizontally and then…

A: Given,  Mass of rod, m=0.19kg Length of rod, L=1.2m

Q: A water pump raises 50 litres of water through a height of 25m in 5 s. Calculate the power of the…

A: Given: The volume of the water is 50 L. The height achieved by the water is 25 m. The time interval…

Q: A solid cone with height 5 m5 m and base with radius 2.5 m2.5 m is built using a lightweight…

A: Height of the cone (h)=5m The radius of the cone (r)= 2.5m The density of the material used =…

Q: A sphere is fired downwards into a medium with an initial speed of 27.5. nan 'snIC he distance…

A: initial speed = V0= 27.53 m/s deceleration = a = - 5.058 t2 m/s2

Q: The speed at the tip of the impeller blades in a pump must not exceed 4.4 m/s to prevent cavitation.…

A: Given data: Speed of tip of impeller blades is, v=4.4 m/s. Diameter of impeller is, d=13…

Q: Calculate energy available in 10 Kg wind, if the power available at the rotor of a wind turbine is…

A: Given :    Power, P = 313 kW = 313 x 103 W    Diameter, D = 82 m    Air density, ρ = 1.23 kg/m3…

Q: Calculate energy available in 15 Kg wind, if the power available at the rotor of a wind turbine is…

A: Given: The mass of wind is m=15 kg. The power is P=699 kW. The diameter of rotor is D=88 m. The air…

Q: On a 5-meter-long seesaw, the father and son are sitting. If the 30kg son sits at one end, the 50kg…

A:

Q: Calculate energy available in 14 Kg wind, if the power available at the rotor of a wind turbine is…

A:

Q: The size of gear is usually specified by:    A) pitch circle diameter B) diametral pitch C) pressure…

A: The size of gear is usually specified pitch circle diameter.

Q: Calculate energy available in 17 Kg wind, if the power available at the rotor of a wind turbine is…

A: Given : m = 17 kg P = 588 kW = 588 x 103 W D = 95 m ρ = 1.23 kg/m3 Cp = 0.35

Q: #1 Determine the maximum weight of the engine that can be supported without exceeding a tension of…

A: Given : Tension in AB : TAB = 450 N  Tension in AC : TAC = 480 N  Angle = 30°  Find : Maximum weight…

Q: Calculate the power oft an electric motor that can lift 800 kg of water to store in a tank at a…

A: Given, mass of water=m=800kg height to lift=h=1500cm=15 m Time=20 s g=10 m/S^2 as we know that power…

Q: the bullung (E.) does the car have?

A: Kinetic energy, K=12mv2 Where 'm' is the mass, 'v' is the velocity.

Q: A single reduction gear of 120 kW with a pinion 250 mm pitch circle diameter and speed 650 r.p.m. is…

A: in this question  we use power , torque  equation then use tangential load and get total load .

Q: A gutter having trapezoidal cross-section is to be made by bending a strip of tin 1 meter wide. If…

A: Consider the given: Width of the gutter w=1 meter =100 cm Width of the base b=50 cm Let width across…

Q: Calculate energy available in 14 Kg wind, if the power available at the rotor of a wind turbine is…

A: Given :            mass of density m = 15kg            power of wind turbine = 673kW…

Q: For the given figure, the unknown mass. m, should be ____ slug to maintain the bar in a horizontal…

A:

Q: Output is 150kW at 5000rev/min, what is the torque?

A: It is given that

Q: ) For the system shown in (FIG.) determine the resultant and locate it w.r.t. point A? 120KN

A: Draw the given diagram with resultant force and resultant moment.

Q: Calculate the load?

A: Given data;  Mechanical advantage of a machine=10 Effort given to the machine=4kgf Calculate the…

Q: The 10µC/ m ^ 2 load seen in the free space is distributed along the disc level with an inner radius…

A: Given that inner radius and outer radius and also given the  value of charge then we have to…

Q: A device used for mixing consists of three identical thin rods extending from a central axle, all in…

A:

Q: m=3 g=9.81 w=??

A:

Q: A bowling ball, whose radius R is 11cm and whose mass is 7.2Kg, roll from rest down a plank whose…

A:

Q: 03: The power output (P) of a marine current turbine is assumed to be a function of velocity U,…

A: Given that,  The power output P of a marine current turbine is assumed to be a function of velocity…

Q: For the given figure, the unknown mass. m, should be slug to maintain the bar in a horizontal…

A:

Q: 5.0m Give the equilibrium condition in the x-direction. Solve for T, in terms of T,. 5.0m b) 02

A:

Q: A rod stock is drawn through a draw die with an entrance angle 8°, starting diameter is 0.3 in and…

A: SOlution: given that di = 0.3 in df =0.15 in angle = 8 degree friction = 0.1 strength k = 25000…

Q: To make butter in the old days you would need to spin a handle that was attached to a mixer around…

A:

Q: If JĀKE|=|Ā.§]. then angle between Āandē will be (a) 30° (b) 45° (c) 60° (d) 90°

A: Given condition--- | A × B | = | A • B | . We have to find--- value of b .

Q: *3-16. Determine the mass of each of the two cylinders if they cause a sag ofs-0.5 m when suspended…

A:

Q: The longest escalator in the world has a length of 227 m. At the top of the escalator, a 52.0-kg…

A: Given: The length of the escalator is 227 m. The mass of the object is 52.0 kg. The gravitational…

Q: Why are high compression ratios not used in sparkignition engines?

A: The increase in thermal efficiency with the compression ratio is not as marked at high compression…

Q: When a bicycle is turned upside down and the front wheel is running, where Wil the valve stop? A.…

A: Answer when a bicycle is turned upside down and  the front wheel is running where will the valve…

Q: This answer has no units ° (degrees) ga ine m kg m/s m/s^2 W

A:

Q: The speed of a centrifugal pump is triple. By what factor does the pump head change? A. 0.125…

A:

Q: One master cylinder piston exerts a force of 5 newtons on the brake fluid. Assuming no less due to…

A: Solution: Given that  master cylinder piston exerts a force of 5 newtons on the brake fluid.

Q: The driver for a steam engine rotates with an angular speed of 36.7 rad/s. The balls of the governor…

A: Force provided by metal rod provides the centripetal force to each ball Let mass of each ball = m…

Q: 2. Fours forees are applizel o an he resultanD. Bbreef as sh own below .Find GN.

A: The forces acting on the object are F1=6 NF2=−4 NF3=−2 NF4=4 N Downward and left to right directions…

Q: For the given figure, the unknown mass, m, should be slug to maintain the bar in a horizontal…

A:

Q: Calculate energy available in 5 Kg wind, if the power available at the rotor of a wind turbine is…

A: Given : m = 5 kg P = 648 kW = 648 x 103 W D = 84 m ρ = 1.23 kg/m3  Cp = 0.42

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics. 

Equilibrium of Forces

The tension created on one body during push or pull is known as force.