DM G+1 EXAM QUESTIONS AND 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 - CORRECT ANSWER✅✅✅14 Days
Shotcrete is used in ________
Repairing surfaces
Dam surfaces
Curved surfaces
All of above - CORRECT ANSWER✅✅✅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 - CORRECT ANSWER✅✅✅14 days
Bitumen is used in construction to provide ______
Protective Surface
Shining surface
Decorative surface
All of above - CORRECT ANSWER✅✅✅Protective Surface
First test on concrete is done after ______days
7 days
14 days
,28 days
3 days - CORRECT ANSWER✅✅✅7 days
Core samples are taken for finding ____
Tensile strength
Compressive strength
Water absorption
Surface hardness - CORRECT ANSWER✅✅✅Compressive strength
Rebound Schmidt hammer test is _____
Destructive test
Non-destructive
Cohesion test
All of above - CORRECT ANSWER✅✅✅Non-destructive
Core samples are taken after _____ days
7 days
14 days
28 days
10 days - CORRECT ANSWER✅✅✅28 days
Density of Aluminium is _____Kg/m3 in normal temperature.
3500
2700
2500
3000 - CORRECT ANSWER✅✅✅2700
Which type of cement is used in normal slabs ____
,SRC
OPC
Non-shrinkage
Rapid hardening - CORRECT ANSWER✅✅✅OPC
Density of Steel is _____ Kg/m3
7000
8000
6500
7800 - CORRECT ANSWER✅✅✅7800
Contractors use blankets over fresh concrete to ____
Increase evaporation
Reduce evaporation
Be rapid harden
Avoid sulphate attack - CORRECT ANSWER✅✅✅Reduce evaporation
The density of lightweight concrete is ____ Kg/m3
1000
2000
300
1300 - CORRECT ANSWER✅✅✅1300
How many cube samples required for 110cum concrete on a single day?
18
12
9
6 - CORRECT ANSWER✅✅✅6
, Adding more water to concrete mix its workability ____
Decrease
Remain same
Increase
No effect - CORRECT ANSWER✅✅✅Increase
Density of ACC block is _____ Kg/m3
500
550
700
600 - CORRECT ANSWER✅✅✅600
Compaction of concrete is done to _____
Increase strength
Increase durability
Remove air
All are required - CORRECT ANSWER✅✅✅All are required
Proper curing of concrete should be continued for ____ days.
7
14
10
28 days - CORRECT ANSWER✅✅✅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'
The shutters and bottom support of non-cantilever slab is removed within a minimum of ______ days.
7 days
14 days
28 days
21 days - CORRECT ANSWER✅✅✅14 Days
Shotcrete is used in ________
Repairing surfaces
Dam surfaces
Curved surfaces
All of above - CORRECT ANSWER✅✅✅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 - CORRECT ANSWER✅✅✅14 days
Bitumen is used in construction to provide ______
Protective Surface
Shining surface
Decorative surface
All of above - CORRECT ANSWER✅✅✅Protective Surface
First test on concrete is done after ______days
7 days
14 days
,28 days
3 days - CORRECT ANSWER✅✅✅7 days
Core samples are taken for finding ____
Tensile strength
Compressive strength
Water absorption
Surface hardness - CORRECT ANSWER✅✅✅Compressive strength
Rebound Schmidt hammer test is _____
Destructive test
Non-destructive
Cohesion test
All of above - CORRECT ANSWER✅✅✅Non-destructive
Core samples are taken after _____ days
7 days
14 days
28 days
10 days - CORRECT ANSWER✅✅✅28 days
Density of Aluminium is _____Kg/m3 in normal temperature.
3500
2700
2500
3000 - CORRECT ANSWER✅✅✅2700
Which type of cement is used in normal slabs ____
,SRC
OPC
Non-shrinkage
Rapid hardening - CORRECT ANSWER✅✅✅OPC
Density of Steel is _____ Kg/m3
7000
8000
6500
7800 - CORRECT ANSWER✅✅✅7800
Contractors use blankets over fresh concrete to ____
Increase evaporation
Reduce evaporation
Be rapid harden
Avoid sulphate attack - CORRECT ANSWER✅✅✅Reduce evaporation
The density of lightweight concrete is ____ Kg/m3
1000
2000
300
1300 - CORRECT ANSWER✅✅✅1300
How many cube samples required for 110cum concrete on a single day?
18
12
9
6 - CORRECT ANSWER✅✅✅6
, Adding more water to concrete mix its workability ____
Decrease
Remain same
Increase
No effect - CORRECT ANSWER✅✅✅Increase
Density of ACC block is _____ Kg/m3
500
550
700
600 - CORRECT ANSWER✅✅✅600
Compaction of concrete is done to _____
Increase strength
Increase durability
Remove air
All are required - CORRECT ANSWER✅✅✅All are required
Proper curing of concrete should be continued for ____ days.
7
14
10
28 days - CORRECT ANSWER✅✅✅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'
