首页
登录
职称英语
In 1983, when oil prices were still high in my area, I installed a ground-s
In 1983, when oil prices were still high in my area, I installed a ground-s
游客
2023-11-21
21
管理
问题
In 1983, when oil prices were still high in my area, I installed a ground-source heat pump in my brand-new, well-insulated, 1,600-square-foot house. It cost several thousand dollars more than comparable systems that use oil, gas or wood, but I figured I’d recover my higher initial expense m a few years through lower energy bills.
True, my heat pump runs on electricity -- an expensive commodity where I live. But most of its energy comes from the earth, a propylene-glycol solution circulates through 1,200 feet of two-inch-diameter plastic pipe buried three feet deep in a field next to my house. As it travels, the solution absorbs heat from the surrounding soil, even when soil temperature drops below freezing.
My ground-source heat pump also offers important benefits that have nothing to do with economics.
-- Minimal fire hazard -- no chimney, firebox, or heating elements -- only pumps, fans, and a compressor.
-- Cleanliness -- no combustion products, thus no chance of my heating system polluting the indoor air, leaving scummy deposits on walls and furniture.
-- Reliability -- solid-state electronic controls and sealed bearings almost eliminate breakdowns.
-- No maintenance -- no wood to cut, ashes to haul, or chimney to clean.
-- Convenience -- The system runs automatically, even switching from heating to air conditioning as needed. I can simply lock the door and go away for a day, week or month.
Not only did I expect to start saving on energy costs immediately, but I also expected those savings to grow over the years as oil prices continued to soar. Since I was wrong about oil prices, the big dollar savings I’d hoped for haven’t materialized. Nevertheless, I am satisfied, all things considered. [br] According to the passage, the author’s heat pump requires ______
选项
A、no maintenance
B、very little maintenance
C、only a yearly check of controls
D、no more maintenance than an oil burner
答案
A
解析
本题是细节题。文中明确写到“No maintenance",因此正确答案一目了然。
转载请注明原文地址:https://tihaiku.com/zcyy/3206948.html
相关试题推荐
In1983,whenoilprocessweretillhighinmyarea,Iinstalledaground-sour
In1983,whenoilprocessweretillhighinmyarea,Iinstalledaground-sour
Accordingtothelecture,whatisinflation?A、Risingprices.B、Fixedincome.C、R
Whydoesthehonestpublichavetopayhigherpriceswhentheygototheshops?
Whydoesthehonestpublichavetopayhigherpriceswhentheygototheshops?
In1983,whenoilpriceswerestillhighinmyarea,Iinstalledaground-s
In1983,whenoilpriceswerestillhighinmyarea,Iinstalledaground-s
We’vejustinstalledtwoair-conditionersinourapartment,______shouldmakeg
Pricesreachequilibriumatthelevelatwhichquantitydemanded______quantity
Withprices______somuch,it’shardforthecompanytoplanabudget.A、fluctua
随机试题
Peopleassociatecolorswithdifferentobjects,feelings,andholidays.Red,
某社区拟针对辖区内糖尿病患者开展健康教育干预活动,制定了用药、饮食、运动、血糖监
患者男性,65岁。慢性阻塞性肺疾病7年。10天前受凉后发热,咳嗽加重,痰黏难咳,
胃酸的生理作用不包括:A.促进维生素B12的吸收 B.杀死进入胃内的细菌 C
莫奈《鲁昂大教堂》系列作品的艺术风格属于()。A.印象主义 B.现实
单克隆丙种球蛋白血症血清蛋白区带电泳中,IgG型M蛋白多位于A:快γ区与β区B
碱催化可以水解A.酯苷、氰苷 B.酯苷、醇苷 C.酯苷、酚苷 D.酚苷、醇
下列关于个人保证贷款的说法,正确的是()。A.其保证人必须具备代位清偿能
根据我国《民法典》的规定,甲电器公司与乙运输公司签订一份委托运输4000台电
下列可能导致工程质量缺陷的因素中属于施工管理不到位的是()。A.超常低价中标
最新回复
(
0
)