2020安全员B证考试题库及模拟考试答案

2020B1,()BABCD2(),,AABCD3(),()AA;B;C;D;4()CA4mB3mC2mD1m5,,(),,10%,BA10%B15%C20%D12%6,()BA50mmB100mmC200mmD500mm7,()DABCD8(),CA1B3C6D9,()CA3B4C5D610,()m,AA10B15C20D3011,()AAB10%C20%D15%12()AABCD13()AABCD14()30,,CABCD15()DABCD16(),BABCD17:BA20m/s,BC,D5m,,18:DA,,B,C,D19()CA15mB20mC24mD30m20(),,AABCD21JGJ120-2012:()AABCD22,,()CABCD23([2012]10),()AABCD24()BABCD25AA,BCD,26(),AA65N?mB85N?mC105N?mD125N?m27,,()AABCD2810m25m()1.5kN/m2BA0.042361111111B0.12569444444C0.20902777778D0.4173611111129()BABCD30(),,,BABCD31()BABCD32,,(),DABCD33(),DABCD34()DABCD35,()BA110B119C120D11436()CABCD37,110%()DABCD385(),AA5B-5C-8D039,(),1m,0.5mJGJ162-20086.4.2BABCD40,()mm,,,BA50~100B200~300C500~600D900~100041()AABCD42,()BABCD43,()CABCD44,()CABCD45,(),CA5B4C3D246()mm/hCA50B80C100D12047()ABDABC3~5mD;48,()DEABCDE49()ABCABCDE50()ABCABCDBB