Porosity is a cavity-like discontinuity and occurs due to the entrapment of gases in the molten weld pool. These entrapped gases don't get a chance to escape from the molten weld pool and hence cause porosity.
<h3>Which discontinuities are caused during welding?</h3>
Weld discontinuities can be defined as "an interruption of the typical structure of a weld, such as a lack of homogeneity in the mechanical, metallurgical or physical characteristics of the weld." Porosity is considered to be the most critical discontinuity. Weld discontinuities include porosity, incomplete fusion, excessive melt.
To learn more about welding visit the link
brainly.com/question/19997700
#SPJ4
Answer:
O price is higher and quantity is lower
Explanation:
Taxes are compulsory levies, fines that businesses have to make to the government. Taxes are imposed on income of workers, profits made on businesses and on imports.
When goods are taxed, it raises the price of good. Depending on how much the tax amount is, a good may become very expensive and this decreases quantity supplied.
Tax would increase the amount that buyers pay for a good, and reduce the quantity of goods that are being supplied to a seller.
Answer:
i quite agree with the above statement due to the fact that with technological advancement such as the use of mobile phones, satellites, one can communicate with another person within seconds all around the globe. the government also uses this advance technologies to track their people and monitor the economy. technology has made the world connected and alive,.
Explanation:
