单项选择题 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
1.将所有处理空气的设备都设置在一个空调机房内,空气加热.加湿用的冷源和热源由专用的冷冻站或锅炉房供给。此类空调系统适用于大型空调系统,该系统为( )空调系统。 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.集中式 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.局部式 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.混合式 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.分散式 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
2.黑色金属管中,主要用于给水.排水和输送煤气等的管道为( )。 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.无缝钢管 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.焊接钢管 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.铸铁管 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.镀锌钢管 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
3.并联运行的电力电缆敷设时,应满足一般规定的是( )。 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.弯曲半径相等 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.长度相等 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.绝缘材料相同 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.外径尺寸相等 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
4.配水支管上每一直管段.相邻两喷头之间的管段上设置的吊架均不宜少于( )个,当喷头之间距离小于1.8m时,可隔段设置吊架,但吊架的间距不宜大于3.6m。 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.1 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.2 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.3 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.4 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
5.粒径小于101um的尘粒能长期飘在空气中,称为( ) ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.浮尘 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.飘尘 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.灰尘 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.降尘 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
6.目前在大多数空调工程中,风管与风管之间.风管与部件及配件之间的连接,主要采用( ) ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.吸口连接 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.法兰连接 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.铆接 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.焊接 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
7.某施工机械预计使用8年,耐用总台班数为2000台班,使用期内有3个大修周期,一次大修修理费为4500元,则台班大修修理费为( )元。 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.6.75 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.4.50 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.0.84 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.0.56 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
8.减压阀直径按( )计算。 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.低压侧 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.中压侧 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.高压侧 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.超高压侧 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
9.适用于潮湿.有机械外力,有轻微腐蚀气体场所的明.暗线配管的管子应为( ) ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.电线管 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.硬塑料管 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.焊接钢管 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.半硬塑料管 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
10.某工程第一年购买钢材的价格是3000元/吨,第二年是3800元/吨,第三年是4200元/吨,则钢材的环比价格指数依次为( )。 ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
A.26.7%,10.5% ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
B.78.9%,90.5% ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
C.126.7%,140.0% ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
D.126.7%,110.5% ñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc
答案:1.A 2.C 3.B 4.A 5.B 6.B 7.B 8.C 9.C 10.Dñ¥¦ÝöÞüÞ/bbs.3c3t.com$ïB£ÏÚc