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ACI Written Exam questions with correct answers A+ GRADED 100% VERIFIED
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ACI Written Exam questions with correct answers A+ GRADED 100% VERIFIED
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ACIWritten
Exam
questions
with
correct
answers
T h e
s e n s o r
o f
t h e
t e m p e r a t u r e
m e a s u r i n g
d e v i c e
s h a l l
b e
s u b m e r g e d
a
m i n i m u m
o f
_ _ _ _ _
i n .
[ _ _ _ _ _ m m ]
i n t o
t h e
f r e s h l y
m i x e d
c o n c r e t e .
-
A N S
3
i n .
[ 7 5
m m ]
T h e
t e m p e r a t u r e
m e a s u r i n g
d e v i c e
s h a l l
h a v e
a
c a p a c i t y
o f
m e a s u r i n g
t e m p e r a t u r e
o f
f r e s h l y
m i x e d
c o n c r e t e
t o
+ -
_ _ _ _ _
d e g r e e s
F
[ + -
_ _ _ _ _
C ]
t h r o u g h o u t
a
r a n g e
o f
_ _ _ _ _ .
-
A N S
1
d e g r e e
F
[ 0 . 5
C ] ,
3 0
d e g r e e s
F
t o
1 2 0
F
[ 0
C
t o
5 0
C ]
T h e
t e m p e r a t u r e
m e a s u r i n g
d e v i c e
s h a l l
b e
c a l i b r a t e d
_ _ _ _ _ ,
o r
w h e n e v e r
t h e r e
i s
a
q u e s t i o n
o f
_ _ _ _ _ .
-
A N S
A n n u a l l y ,
a c c u r a c y
T h e
t e m p e r a t u r e
o f
c o n c r e t e
m a y
b e
m e a s u r e d
i n
a
w h e e l b a r r o w .
T r u e
o r
F a l s e ?
-
A N S
T r u e
T h e
t e m p e r a t u r e
o f
c o n c r e t e
m a y
b e
m e a s u r e d
i n
a
w a l l
f o r m .
T r u e
o f
F a l s e
-
A N S
T r u e
A
c o m p o s i t e
s a m p l e
o f
c o n c r e t e
i s
r e q u i r e d
e v e n
i f
t h e
o n l y
p u r p o s e
f o r
o b t a i n i n g
t h e
s a m p l e
i s
t o
d e t e r m i n e
t e m p e r a t u r e .
T r u e
o f
F a l s e ?
-
A N S
F a l s e
W h a t
m u s t
b e
d o n e
t o
t h e
s a m p l e
c o n t a i n e r
p r i o r
t o
s a m p l i n g
t h e
c o n c r e t e ?
-
A N S
D a m p e n
( w i t h
w a t e r )
W h a t
m u s t
b e
d o n e
t o
t h e
c o n c r e t e
s u r r o u n d i n g
t h e
t e m p e r a t u r e
m e a s u r i n g
d e v i c e
a f t e r
t h e
d e v i c e
i s
s u b m e r g e d
i n
t h e
f r e s h
c o n c r e t e .
-
A N S
G e n t l y
p r e s s
t h e
c o n c r e t e
a r o u n d
t h e
t e m p e r a t u r e
m e a s u r i n g
d e v i c e
a t
t h e
s u r f a c e
o f
t h e
c o n c r e t e
H o w
l o n g
m u s t
t h e
t e m p e r a t u r e
m e a s u r i n g
d e v i c e
r e m a i n
i n
t h e
f r e s h l y
m i x e d
c o n c r e t e ?
-
A N S
A t
l e a s t
2
m i n u t e s
b u t
n o t
m o r e
t h a n
5
m i n u t e s
A f t e r
t h e
t e m p e r a t u r e
o f
t h e
c o n c r e t e
i s
r e a d ,
w h a t
i s
r e q u i r e d ?
-
A N S
R e p o r t i n g
o f
t e m p e r a t u r e
T h e
t e m p e r a t u r e
o f
c o n c r e t e
i s
r e p o r t e d
t o
t h e
n e a r e s t
_ _ _ _ _
d e g r e e s
F
[ _ _ _ _ _
C ]
-
A N S
1
d e g r e e
F
[ 0 . 5
C ]
A c c o r d i n g
t o
A S T M
C 1 0 6 4 ,
w h a t
i s
o n e
r e a s o n
t o
t a k e
t h e
t e m p e r a t u r e
o f
c o n c r e t e ?
-
A N S
V e r i f y
c o n f o r m a n c e
t o
a
s p e c i f i e d
r e q u i r e m e n t
f o r
t e m p e r a t u r e
o f
c o n c r e t e A
m a x i m u m
t e m p e r a t u r e
o f
f r e s h l y
m i x e d
c o n c r e t e
i s
s p e c i f i e d
i n
A S T M
C 1 0 6 4 .
T r u e
o f
F a l s e ?
-
A N S
F a l s e
T h e
s a m p l e
o f
c o n c r e t e
u s e d
f o r
t e m p e r a t u r e
d e t e r m i n a t i o n
m u s t
b e
r o d d e d
2 5
t i m e s .
T r u e
o r
F a l s e ?
-
A N S
F a l s e
S a m p l i n g
b y
t h i s
m e t h o d
i s
r e q u i r e d
w h e n
t e s t s
a r e
t o
b e
m a d e
t o
d e t e r m i n e
_ _ _ _ _
w i t h
s p e c i f i c a t i o n
r e q u i r e m e n t s .
-
A N S
C o m p l i a n c e
T h i s
m e t h o d
c o v e r s
s a m p l i n g
f r o m
f o u r
t y p e s
o f
m i x t u r e s
w h i c h
a r e
_ _ _ _ _ ,
_ _ _ _ _ ,
_ _ _ _ _ ,
a n d
_ _ _ _ _ .
-
A N S
S t a t i o n a r y
m i x e r s ,
p a v i n g
m i x e r s ,
r e v o l v i n g
d r u m
m i x e r s ,
a n d
o p e n
t o p
m i x e r s
T h e
m a x i m u m
a l l o w a b l e
t i m e
b e t w e e n
o b t a i n i n g
t h e
f i r s t
a n d
f i n a l
p o r t i o n s
o f
a
c o m p o s i t e
s a m p l e
i s
_ _ _ _ _
m i n u t e s .
-
A N S
1 5
P o r t i o n s
o f
a
c o m p o s i t e
s a m p l e
s h a l l
b e
t h o r o u g h l y
r e m i x e d
b f o r e
b e g i n n i n g
t e s t s
o n
t h e
s a m p l e .
T r u e
o f
F a l s e ?
-
A N S
T r u e
T h e
m a x i m u m
e l a p s e d
t i m e
a l l o w e d
b e t w e e n
o b t a i n i n g
t h e
f i n a l
p o r t i o n
o f
t h e
c o m p o s i t e
s a m p l e
a n d
b e g i n n i n g
t h e
t e s t s
f o r
s l u m p ,
t e m p e r a t u r e ,
a n d
a i r
c o n t e n t
i s
_ _ _ _ _
m i n u t e s .
-
A N S
5
T h e
m o l d i n g
o f
s t r e n g t h
t e s t
s p e c i m e n s
s h a l l
b e g i n
w i t h i n
_ _ _ _ _
m i n u t e s
a f t e r
f a b r i c a t i n g
t h e
c o m p o s i t e
s a m p l e .
-
A N S
1 5
T h e
c o n c r e t e
s a m p l e
m u s t
b e
p r o t e c t e d
f r o m
c o n t a m i n a t i o n
a n d
_ _ _ _ _ .
-
A N S
R a p i d
e v a p o r a t i o n
T h e
m i n i m u m
s i z e
s a m p l e
f o r
m a k i n g
s t r e n g t h
t e s t
s p e c i m e n s
i s
_ _ _ _ _ .
-
A N S
2 8
L
( 1 f t ^ 3 )
W h e n
s a m p l i n g
f r o m
a
s t a t i o n a r y
m i x e r ,
t h e
b a t c h
m u s t
b e
s a m p l e d
a t
_ _ _ _ _
o r
m o r e
r e g u l a r l y
s p a c e d
i n t e r v a l s
d u r i n g
d i s c h a r g e
o f
t h e
m i d d l e
p o r t i o n
o f
t h e
b a t c h
-
A N S
2
T h e
c o m p o s i t e
s a m p l e
f o r
a
p a v i n g
m i x e r
m u s t
r e p r e s e n t
a
m i n i m u m
o f
_ _ _ _ _
d i f f e r e n t
p o r t i o n s
o f
t h e
b a t c h
o f
c o n c r e t e
t a k e n
f r o m
t h e
p i l e
a f t e r
d i s c h a r g e .
-
A N S
5
W h e n
s a m p l i n g
f r o m
a
r e v o l v i n g
d r u m
t r u c k
m i x e r ,
c o n c r e t e
m u s t
b e
s a m p l e d
a t
a
m i n i m u m
o f
_ _ _ _ _
r e g u l a r l y
s p a c e d
i n t e r v a l s
d u r i n g
d i s c h a r g e
o f
t h e
m i d d l e
p o r t i o n
o f
t h i s
b a t c h .
-
A N S
2
C o n c r e t e
s a m p l e s
f r o m
a
t r u c k
m i x e r
m u s t
b e
o b t a i n e d
b e f o r e
a n y
w a t e r
o r
a d m i x t u r e s
a r e
a d d e d
t o
t h e
m i x e r
a t
t h e
j o b
s i t e .
T r u e
o r
F a l s e ?
-
A N S
F a l s e
T h e
c o m p o s i t e
s a m p l e s
f r o m
a
t r u c k
m i x e r
m u s t
b e
o b t a i n e d
f r o m
t h e
_ _ _ _ _
p o r t i o n
o f
t h e
b a t c h .
-
A N S
M i d d l e
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