CHS Inc Engineer Associate interview questions

applied online, first an email screening followed by a phone interview. the hiring manager call me whilst travelling on road, the call had terrible reception signal I can barely hear his words. for his first question all I heard supposedly a plant manager told me something (i cannot hear what exactly the situation was) and ask me to keep it between the two of us. I interpret the situation as a office gossip so I answered "if it is not against company policy and it does not cause harmful consequence to personnel or society, then I will not tell others". The hiring manager then told that's a WRONG answer and accused me of my integrity... well, okay, and the second question is that the company need to replace forklift trucks (the phone signal was so bad I thought he was saying "ford trucks" the entire interview ), as a plant engineer, what will I do? I answered "I will perform an economic analysis to determine the number of truck needed to be replaced and contact the vendor that can give my company the best deal", he then reply "That's it? you just gonna go off and buy the trucks??" he then went on and told me I should consider all alternatives and create a powerpoint presentation on a conference with all the others engineer and determine the best possible solution to replace the truck, it is also important to determine whether the trucks are battery or propane power....etc etc etc etc...also he said he's surprise I didn't even consider leasing the trucks.