answersLogoWhite

0

📱

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 formula for free air delivery?

Air, partially low pressures as 1 to 10 bars, can be accepted as an ideal gas. That means, assuming in constant temperature, the formulae P1(bar,absolute)*Q1(litres/min)=P2(bar,absolute)*Q2(litres/min)

can be used.

P1(bar,absolute)=1 atm quite equall to 1 bar,abs (known)

P2(bar,absolute)=any given in bars,absolute at which the air flow in litres per minute we'd like to calculate(known)

Q1(litres/min)=F.A.D.(written down on label of the compressor)

Q2(litres/min)=(unknown)the amount of air flow at pressure, P2 in bars,abs

What is the difference between a milling machine and a lathe?

A milling machine basically look like a drill press, but with the ability to move the work piece sideways.

A lathe clamp and spin the work piece horizontally and use a stationary tool bit to cut and shape the work piece.

What uses the hydraulic system?

providing auto proportional/servo valve test bench and other electro-hydraulic automatic controlequipment and all kinds of electro-hydraulic control system integration...

What pulley is attached to the load and moves as the load moves Hi I'm Gretchen?

Hi Gretchen, this arrangement to gain mechanical advantage is often referred to as a "block and tackle". It consists of pulleys and ropes, usually not more than four, where the pulley attached to the load moves with the load, and the mechanical advantage is determined by the number of ropes.

How do chronograph watches work?

A chronograph watch can be started, stopped and returned to zero. The chronograph watches are usually used purely for the timing purposes.

What does incomplete combustion do to the engine of a car?

Incomplete combustion in an engine indicates that all of the fuel has not been burnt. Incomplete combustion can cause clogging and damage to the valves in the engine of a car.

How big is the acceleration on nemesis inferno?

G-Force = positive 4.5g

Maximum Velocity = 77kmph

Hope this helps.

Why do you change polarity DCRP-DCSP in SMAW?

Using DCSP when welding thin material causes more heat to be concentrated in the electrode than in the base metal. This prevents the arc from burning thru thin materials before the electrode melts.

How do you draw velocity and acceleration diagrams?

Velocity diagrams are drawn perpendicular to the link ....whereas acceleration diagrams are drawn by knowing the values 2 components radial or centripetal component and tangential component.......the radial component moves parallel to the link and perpendicular to the velocity diagram.....but the tangential component moves perpendicular to the link and parallel to the velocity diagram .

Calculate the accelaration of car by its engine power in cc and force applied by it?

One cannot "Calculate the accelaration of a car by its engine power in cc" and hence derive the "force applied by it" because, depending on the configuration of the engine varying amounts of horsepower (ie engine power) can be obtained from the same size engine. One would have to have a known amount of "engine power" to apply the "F=ME" formula and from there calculate the acceleration possibilities.

What is the difference between upstream and downstream in a refinery?

The total process of a the refining business starts at the oil field or gas field and runs all the way to the sending of processed hydrocarbon to a final user.

Upstream applies to the operation of exploration, drilling, hydrocarbon production, and transmission via truck, rail or ship or pipe line to the refinery intake valve.

Downstream includes all work done at the refinery, distillation, cracking, reforming , blending storage, mixing and shipping.

The case of heavy oil processing (oil sands etc.) and gas plant operation tend to cross the boundaries somewhat. Most are regarded as upstream operations even though downstream type operations are part of the processes. The production of chemical side products at gas plants (e.g. sulfur) is not generally segregated as a "Chemical Plant" operation.

Additional hydrocarbon production operations such as saddle plants which remove a component from pipeline gas are generally lumped with upstream.

The operation of product transfer pipelinesis sometimes looked on as a separate issue.

Circle shape meaning?

In geometry, a circle is a two-dimensional shape formed by all points that are one consistent distance or "radius" from a single central point. For example, if the radius is 5 inches, then the shape formed from the preceding rule would be a perfectly round circle measuring 10 inches in "diameter" (the distance of any one point on a circle to the farthest point on the same circle).

How many people can fit in a submarine?

The physical size of the ship is the upper limit on how many people can fit in a submarine. Operationally, the atmosphere control systems and food supplies further constrain the maximum load. U.S. attack submarines deploy for about six months; when we left home, we actually had to walk on food cans at times. The lower limit would be set by the operational and maintenance needs to conduct submerged operations. Thus, there is an engineered balance between the duration of the expected missions, ability to replenish stores In my service on three U. S. submarines, the crewing was very much mission-dependent. On an Ohio-class ballistic missile submarine, Jackson's "Submarines of the World" lists the crew as 155, which seems about right to me. Variables for our ship included shortages in some crew ratings at times, to having extra crew on board for training purposes. That number holds up for submerged operations of about ten weeks, but on one occasion I had to be out for twelve weeks. During some operations, such as inspections or builder's trials, the number could swell to 300 or so for a day or two. The same source suggests 175 for Russia's Typhoon-class (I'll use NATO labels), and I expect their actual numbers vary for inspections etc as well. In contrast, the Los Angeles-class were engineered for about 110 on board, but often carry about 135 to support crew training and mission requirements. Russia's Victor III-class is built for 100, but probably can carry more for an extended period. Their newer Akula may actually require less crew, I've always heard the Russians like to automate operations as much as they can. The Russian Oscar-class SSGN is listed at 130. I would guess the Ohio-class ships converted to SSGNs probably need about the same crew as the regular ones. Special operations complements aboard could add more, maybe a hundred or so for shorter duration missions. In contrast, I went aboard a fairly modern Chilean Type 209-class sub visiting our base in Pearl Harbor one Sunday morning. One of the crew indicated that they had deployed with just 33 crew (Jackson suggests 22). It wasn't cramped at all, and the senior enlisted guy I talked to said everyone had their own bunk, the CO had a small stateroom. The galley was just a griddle over a small oven, quite small, and the dining area was just a couple of four-seat dinettes. I don't remember seeing a wardroom. The engine room was small, with four small diesels and a Siemens switchboard, in a separate compartment. The crewman back there talked to me in a normal voice, and I came to realize one of the diesels was actually running; it was quiet, like my Civic.

You are be mechanical student is any special side of MBA for be mechanical student?

AS A MECHANICAL STUDENT YOU CAN DO MBA IN PRODUCTION MANAGEMENT AND POWER MANAGEMENT. AS A MECHANICAL STUDENT YOU CAN DO MBA IN PRODUCTION MANAGEMENT AND POWER MANAGEMENT.

Formula for bulk modulus of volume of elasticity?

K(bulk modulus of elasticity)=-{[Pressure x volume]/change in volume}

What size welding rod needed two do a root weld?

The size of the welding rod needed to do the root pass should be the same as the root gap, although in practice, the most common root gap is 1/8" so that the size of the rod to do it is also 1/8".

Advantages and disadvantages of four stroke petrol engine?

One advantage of having a four stroke petrol engine is the fuel economy. A disadvantage of the engine is in the cold weather they are harder to start.

Is there more power in petrol engine than diesel engine?

There is more energy in one gallon of diesel than one gallon of gasoline. To elaborate, the word "petrol" is defined in different ways in different places..... but if you have two internal combustion engines of the same displacement the diesel will produce more power than the gasoline engine, especially in 'torque' measurement

Where can one find a vacancy for a mechanical engineer?

A vacancy for a mechanical engineer may be found in the classified ads in a newspaper under the heading 'engineers'. Another place one will see ads for this type of employment is in the back of the well-known magazine 'Popular Mechanics'.

How much weight can a steel lintel hold?

It depends on:

1. The section (box, I-beam, angle),

2. The cross-sectional dimensions, and

3. The width (span).

More info is needed for a useful answer.

What do you mean by seam welding where it is used?

seam welding is a process that produces a weld at the faying surfaces of two similar metals where its used depends on which metal you look to weld