DM G+1 EXAM QUESTIONS AND ACCURATE
ANSWERS
The shutters and bottom support of non-cantilever slab is removed within a minimum of
______ days.
7 days
14 days
28 days
21 days - Answers - 14 Days
Shotcrete is used in ________
Repairing surfaces
Dam surfaces
Curved surfaces
All of above - Answers - All of above
The shutters and bottom support of non-cantilever beam can be removed within a
minimum of ____
7 days
14 days
28 days
21 days - Answers - 14 days
Bitumen is used in construction to provide ______
Protective Surface
Shining surface
Decorative surface
All of above - Answers - Protective Surface
First test on concrete is done after ______days
7 days
14 days
28 days
3 days - Answers - 7 days
Core samples are taken for finding ____
Tensile strength
Compressive strength
Water absorption
Surface hardness - Answers - Compressive strength
Rebound Schmidt hammer test is _____
,Destructive test
Non-destructive
Cohesion test
All of above - Answers - Non-destructive
Core samples are taken after _____ days
7 days
14 days
28 days
10 days - Answers - 28 days
Density of Aluminium is _____Kg/m3 in normal temperature.
3500
2700
2500
3000 - Answers - 2700
Which type of cement is used in normal slabs ____
SRC
OPC
Non-shrinkage
Rapid hardening - Answers - OPC
Density of Steel is _____ Kg/m3
7000
8000
6500
7800 - Answers - 7800
Contractors use blankets over fresh concrete to ____
Increase evaporation
Reduce evaporation
Be rapid harden
Avoid sulphate attack - Answers - Reduce evaporation
The density of lightweight concrete is ____ Kg/m3
1000
2000
300
1300 - Answers - 1300
How many cube samples required for 110cum concrete on a single day?
18
12
9
6 - Answers - 6
, Adding more water to concrete mix its workability ____
Decrease
Remain same
Increase
No effect - Answers - Increase
Density of ACC block is _____ Kg/m3
500
550
700
600 - Answers - 600
Compaction of concrete is done to _____
Increase strength
Increase durability
Remove air
All are required - Answers - All are required
Proper curing of concrete should be continued for ____ days.
7
14
10
28 days - Answers - 7 days
The average strength of cubes at the end of 28 days should be ____
Greater than fc' by 15%
Greater than or equal to fc'
Equal to or less than fc' by 15%
Greater than fc' by 1.15 times - Answers - Greater than or equal to fc'
Compaction of concrete is done to ____
Increase strength
Increase durability
Remove air
All of above - Answers - All of above
When casting if the temperature of concrete mix is above 32C0, than how should you
bring the temperature of the mix down to 32 or less?
Adding water
Adding fly ash
Adding silica
Adding ice - Answers - Adding ice
Structural element that holds the earth retaining wall is ____
Stem
ANSWERS
The shutters and bottom support of non-cantilever slab is removed within a minimum of
______ days.
7 days
14 days
28 days
21 days - Answers - 14 Days
Shotcrete is used in ________
Repairing surfaces
Dam surfaces
Curved surfaces
All of above - Answers - All of above
The shutters and bottom support of non-cantilever beam can be removed within a
minimum of ____
7 days
14 days
28 days
21 days - Answers - 14 days
Bitumen is used in construction to provide ______
Protective Surface
Shining surface
Decorative surface
All of above - Answers - Protective Surface
First test on concrete is done after ______days
7 days
14 days
28 days
3 days - Answers - 7 days
Core samples are taken for finding ____
Tensile strength
Compressive strength
Water absorption
Surface hardness - Answers - Compressive strength
Rebound Schmidt hammer test is _____
,Destructive test
Non-destructive
Cohesion test
All of above - Answers - Non-destructive
Core samples are taken after _____ days
7 days
14 days
28 days
10 days - Answers - 28 days
Density of Aluminium is _____Kg/m3 in normal temperature.
3500
2700
2500
3000 - Answers - 2700
Which type of cement is used in normal slabs ____
SRC
OPC
Non-shrinkage
Rapid hardening - Answers - OPC
Density of Steel is _____ Kg/m3
7000
8000
6500
7800 - Answers - 7800
Contractors use blankets over fresh concrete to ____
Increase evaporation
Reduce evaporation
Be rapid harden
Avoid sulphate attack - Answers - Reduce evaporation
The density of lightweight concrete is ____ Kg/m3
1000
2000
300
1300 - Answers - 1300
How many cube samples required for 110cum concrete on a single day?
18
12
9
6 - Answers - 6
, Adding more water to concrete mix its workability ____
Decrease
Remain same
Increase
No effect - Answers - Increase
Density of ACC block is _____ Kg/m3
500
550
700
600 - Answers - 600
Compaction of concrete is done to _____
Increase strength
Increase durability
Remove air
All are required - Answers - All are required
Proper curing of concrete should be continued for ____ days.
7
14
10
28 days - Answers - 7 days
The average strength of cubes at the end of 28 days should be ____
Greater than fc' by 15%
Greater than or equal to fc'
Equal to or less than fc' by 15%
Greater than fc' by 1.15 times - Answers - Greater than or equal to fc'
Compaction of concrete is done to ____
Increase strength
Increase durability
Remove air
All of above - Answers - All of above
When casting if the temperature of concrete mix is above 32C0, than how should you
bring the temperature of the mix down to 32 or less?
Adding water
Adding fly ash
Adding silica
Adding ice - Answers - Adding ice
Structural element that holds the earth retaining wall is ____
Stem
