Technician a says oily residue on hoses, components, or fittings indicates an area where refrigerant may be leaking. technician b says that low coolant level will result in the water pump only heating the engine, not the inside of the car. who is correct?
neither technician a nor b
b. technican b
c. both technicians a and b
d. technician a

Option D.

Technician A.

Explanation:

Oil residues on hoses, it's components or fittings indicate an area where refrigerant may be leaking.

An oil spot on the A/C hose is an indication of refrigerant leak in the system. Good oil levels are important for the system good performance. If the level of oil is to low, the compressor will not have lubrication and if it is too high, the heat exchange will affected which will lead to poor air conditioning performance. If a leak is formed on A/C hose, an oil spots that collect dirts will disappear. An refrigerant leak detector will help verify if there is no leak in the system.

So Technician A is correct.

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.