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Engineering

Engineering is an art and profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life.

5,839 Questions

What is a weld backgouge?

A Backgouge consists of preparation of the second side of full penetration welds to the extent necessary to permit the proper deposition of weld metal.

What Is the longest lasting light bulb in Mississippi?

the longest lasting light bulb is at mc donalds jaksonville

How many square yards in a ton of rip rap?

The answer would depend on the size of the ton - there are two weights for a ton.

What is the physical properties of C45?

Designation by Standards

Brand Name Ravne No. Mat. No. DIN EN AISI

C45 516 1.0503 C45 - 1045

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others

0.46 max. 0.40 0.65 max. 0.40 max. 0.10 max. 0.40 - - (Cr+Mo+Ni)= max. 0.63

What is meant by HVAC when advertised as an engineering job?

HVAC, when used in context to engineering, stands for Heating, Ventilation and Air Conditioning. This is specifically indoor technology used to provide comfort through the control of temperature and air-flow.

What does a thermal engineer do?

I quess there are different kind of thermal engineer, but in product R&D thermal engineer is respensible for devices thermal performance -> It does not get too hot for user and stays under component and material specified limits.

Methods of designing are: Guessing , knowledge, simulation, and measuring with e.g thermo couples and infra red camera.

A pulsed laser produces 47mj per pulse. The pulse repetition time is 2.5ms and the duty cycle is .008. Find the pulse duration?

(shiwwasuji@gmail.com)

Duty Cycle DC is the ratio of pulse duration to the pulse repetition time period

Duty Cycle DC = pulse duration (t)/pulse repetition time period (T)

Pulse Duration (t) = 0.008 x 2.5 ms

What type of physical activity is an aerobics class?

A type of activity that uses (mainly) your lungs and respiration, eg. long distance running, swimming.

How does AVG antivirus work?

AVG is like any other virus protector it scans for virus signatures and finds the virus then removes it

How to disassemble tilted mobile scaffold?

Read and understand the instructions, or get a contractor!

What is the function of a 180K resistor in hobby kit?

All resistors have the same function in a hobby kit, to cause a voltage drop in series circuits or reduce currents in parallel circuits. A value of 180k ohms is just going to do that by a lot.

What do robot sensors do?

Robot sensors detect different things and send different amounts of electricity to the Robot's controller board to tell their findings. Then the controller board uses these different amounts of electricity to interact with its surroundings.

Example:

Lets say you have a robot that is made to follow light. Lets say your robot has 3 light sensors. One in the front of your robot one on the right and one on the left side. The sensors will detect how much light is on the front, right, and left sides and send this data to the controller board. Then the controller board uses this data to tell the robot with direction to go.

What is the difference between aluminum extruded bar and aluminum bar?

The extruded bar would be produced by pushing molten aluminum through a die. Where as the other option for making the bar would be to cast it in a mould. The extruded bar would probably have smoother sides and would be available in longer lengths.

Is current a scalar or vector quantity?

It depends upon the condition.

But basically, to be a vector, the physical quantities needs to follow vector algebra.but current dos not follow it so it is scalar quantity.

What is turnover in an organization?

Total of all balances of a business in a given tax year, all credit received counts as turnover.

What other industries use robotics besides the auto industry and for what purpose?

Robots are generally used for jobs which are either too repetitive and require no special skill or for jobs where the environment is not safe for human operation,typically jobs like welding, moulding etc... Therefore they find application in industries like Foundry & Forging, Metal Fabrication, Plastics, Packaging & Palletizing, Oil & Gas, Minining, etc.

How do you use a return stack heater?

Stick some crap old oil in it and light an old rag and stuff it in the hole. When it gets going close the hole and hang on.