Technician A says that the old gaskets should be discarded as they are removed from the transmission. Technician B says that the old gaskets should be saved to match with the new gaskets during assembly. Which technician is correct?A. Tech A
B. Tech B
C. Both techs.
D. Neither tech

The answer is tech A

Explanation:

A gasket is a mechanical seal i.e it is used to close up the gap between two mating surfaces when a fluid is to pass within and between the two components. Gaskets are very much required in systems that deals with high temperature and pressure.

Gaskets are made from cutting a material with yielding properties from the stock material. Gaskets are pre-designed, and component manufacturers also produce spares for replacement for machine users to purchase when the one in the machine fails. Technician B keeping the old old gasket for matching is wrong as you can purchase new gaskets with the required specifications simply by knowing the machine model and manufacturer.

Gaskets primarily fail by yielding beyond the required yield under load stress this can sometimes be due to human error by uneven bolt tightening during assembly or simply from working its normal lifespan.

answer: at 24 february, 2014 the population gets twice of its initial population.

explanation:

since we have given that

the population for alpha city, t years after january 1, 2004 is given as

first we find out the initial population, i.e. t=0,

so, our quadratic equation becomes,

according to question, we have said that if the population has twice its initial population, then it becomes

so, time taken to reach this above mentioned population is given by

now, we know that time can't be negative so, we take t=9.149 years.

hence, at 24 february, 2014 the population gets twice of its initial population.

i just did an experiment like this in my science class. also the answer is yes, it will get separated because they are two opposites meaning if they are opposite they can not attract.

hope this .!