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Mechanical Engineering
Mechanical Engineering is a branch of engineering that encompasses the generation and application of heat and mechanical power and the design, production, and use of machines and tools. Mechanical engineering involves application of the principles of dynamics, control, thermodynamics and heat transfer, fluid mechanics, strength of materials, materials science, electronics, and mathematics.
10,989 Questions
What is the function of snub pulley?
Snub pulleys are used to increase the angle of wrap of the driver pulley or and to change the direction of belt(deflector pulley)
What is difference between radial flow turbine and axial flow turbine?
in a radial flow turbine the steam enters the turbine in the direction of its radius and leaves it in the direction of the axis of the shaft. in a axial flow turbine the steam enters the turbine in the direction of the axis of the shaft and leaves the turbine in the same direction.
Tensile roof is a tension membrane roof made of fabric. It's used to cover modern-looking pre-fabricated buildings with low energy consumption. You can find examples of tensile roofs at http://fstructures.com
What is cost to install escalator step chain?
Very difficult to answer because you need to qualify the question:
1. Type of escalator
2. Width of escalator steps
3. Number of escalator steps
4. Material cost for step chain
5. Labor rate for a team
6. Normal hours vs. Overtime
Why is the steam pressure coming out of the boiler low?
Depends on the situation! It may be needed at only a low pressure. Otherwise it may be the result of reduced heat input or of the input of cold feed-water.
Does dead air space provide insulation?
As you should know, the purpose of insulation is to create dead air space. DEAD air does not transfer temperatures.
What is the melting loss of steel in an induction furnace?
There is hardly 1.5 to 2.0% loss in induction melting of steel but even it can be also avoided with the help of covering of crucibles. just open it at the time of charging only is the best practise to avoid oxidation & heat losses for Induction melting for steel.
A centrifugal pump is one that is used to transport the fluids throughout a vehicle. It uses this pump to get the fuel to the areas it needs to go.
What metals are used to make piston rings?
Typically, especially in the early days of internal combustion engines, piston rings were made using specially hardened cast iron. Nowadays various alloys of hardened nickel/chrome steel are also used.
What are the parts of machine shaper?
Machine shaper are practically used in shaping materials. The parts of the machine shaper are Ram, Table, Clapper Box, Tool head, Cross rail, Stroke Adjustment, Column, Base and Table supports.
What is a mechanical engineering topic that mechanical engineers often argue about?
Uncertainty in measurements
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Difference between torque and power...
* Most Mechanical Engineers are pressured to complete projects "on-time / on-budgit". This normally means that the equipment installed just meets the requirements of Operations but is not a quality piece of machinery that will last. This now falls into the laps of Maintenance Reliability. Look at all of the "throwaway" equipment now utilized in the US!
What are the function and purpose of rake angles?
Rake angle is usually used for cutting and machining processes. This can vary according to the materials being cut and set-up. The two types of rake angle are the back and side rake angle.
Causes of injuries in mechanical engineering?
mainly injuries happening in production and in thermal field. lot of precaution material available in market. but the awareness abt these items is important
How are hydraulics used for hydraulic drills?
The vertical hydraulic cylinder can be created for the drill.
The flange adapter is a part that is used to adjust the size to the next piece so it will connect. It can be made out of any material.
Helical springs are the typical, common, wound springs used in tension or compression. The term 'helical' comes from the spring being a helix- the wire is wound around a mandrel, advancing along the length of the mandrel as it is wound.
What is the Poisson's ratio of polyurethane?
The poisson ration of uncompressed polyurethane is 0.5; the poisson ration of polyurethane under compression is 0.39. Reference: "Material behaviour in plane Polyurethane - Polyurethane impact with velocities from 10 to 400 m/sec." Published at J. Phys IV France 7 (1997)
What is function of dearetor in thermal power plant?
A dearetor is used to remove "non-condensable" gases from the condensate return lines (water being returned to the boiler).
These gases consist mainly of carbon dioxide and oxygen. These gases are undesirable because of the problems they cause when in contact with steel, such as oxygen pitting and carbonic acid corrosion (carbon dioxide forms carbonic acid when in contact with water and has a detrimental effect on steel).
Another reason why non-condensable gases need to be removed is that they degrade heat transfers in the system by acting as thermal insulators.
it pollutes by being left on the ground and taking mnay ears to desinergrate.
Always wear eye protection, be sure to stay clear of a rotating bit, only pull the trigger when you are ready to drill, hold the drill vertically, and apply plenty of pressure in the direction you are drilling.
