【判断题】【消耗次数：1】
直孔可以有钻头角。
①
正确
②
错误
参考答案：
复制
纠错
相关题目
【单选题】
泥浆护壁成孔灌注桩施工中，钻孔时应在孔中注入泥浆，并始终保持泥浆液面高于地下水位（ ）以上，以起到护壁、润滑钻头、降低钻头发热、减少钻进阻力等作用。
①
0.5ｍ
②
1.0ｍ
③
1.5ｍ
④
2.0ｍ
【单选题】
下列关于腭大孔的描述哪项是错误的（）
①
位于硬腭后部
②
在硬腭后缘前约0.5m
③
相当于腭中缝至龈缘的外、中1/3交界处
④
是翼腭管的下口
⑤
腭前神经和腭降血管由此孔穿出
【单选题】
关于人工挖孔灌注桩的说法错误的是()
①
人工挖孔灌注桩多为大直径桩
②
抗弯能力弱，刚度小
③
在施工过程中易于检查土层情况、成孔及混凝土的施工质量可靠
④
施工条件差，劳动强度高
【单选题】
关于泥浆护壁成孔灌注桩，以下表述错误的是（ ）
①
所注入的泥浆起到护壁、携渣、润滑钻头和减少阻力等作用
②
钻机钻孔时，应在孔中注入泥浆，并保持泥浆液面高于地下水面1.0M以上
③
钻孔深度达到设计标高后，先注清水换浆，然后清孔，必须用水泵抽干孔中的水 D. 钻孔、清孔完成后，应尽快吊放钢筋笼并灌注砼
随机题目
【单选题】
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①
under
②
by
③
of
④
with
【单选题】
They talked in whispers, but still, I couldn’t help but __________ their conversation.
①
overhear
②
to overhear
③
overhearing
④
overheard
【单选题】
Oh, I’m sorry. But I promise I’ll be careful next time.
①
It’s nothing at all
②
Oh, never min
③
It doesn’t matter
④
Thank you
⑤
There are no questions
【单选题】
Not only are cars involved in most of the traffic accidents, but they also __________to the pollution of the air. .
①
contribute
②
promote
③
refer
④
matter
【单选题】
She was __________ a very affectionate person.
①
at heart
②
in person
③
on purpose
④
by nature
【单选题】
The furniture in his room is quite different __________ in yours.
①
from those
②
from that
③
from that one
④
from those ones
【单选题】
Isn’t it about the time you __________ to do morning exercises?
①
began
②
begin
③
should begin
④
have begun
【单选题】
I’d almost given up hope of finding a house I liked, and then suddenly this one __________ .
①
turned over
②
turned up
③
turned on
④
turned down
【单选题】
He __________ to arrange a loan through a finance company.
①
tried
②
succeeded
③
managed
④
endeavored