| 1. | What is the meaning of the designation ‘M30' concrete suggested for a reinforced cement concrete work ? | |
|
The mix characteristic compressive strength of 100 mm size cube at 28 days is 30 N/mm².
|
||
|
The mix characteristic compressive strength of 150 mm size cube at 365 days is 30 N/mm².
|
||
|
The mix characteristic compressive strength of 150 mm size cube at 28 days is 300 N/mm².
|
||
|
The mix characteristic compressive strength of 150 mm size cube at 28 days is 30 N/mm².
|
||
View Answer
Discuss in Forum
Report Question| 2. | The Los Angels abrasion value requirement for coarse aggregates used in water bound macadam for the base course is ? | |
|
Between 40 to 50%
|
||
|
Between 50 to 60%
|
||
|
Between 60 to 70%
|
||
|
Between 0 to 40%
|
||
| 3. | In estimation of quantity of plastering work, quantity of deduction for openings allowed for 2 m² is ? | |
|
No deduction is made for ends of beams
|
||
|
Deduction is allowed for both face of the wall
|
||
|
Deduction is allowed for one face of the wall
|
||
|
Deduction is allowed for both faces of openings
|
||
| 4. | Which of the following is NOT a mode of failure in a tension member ? | |
|
Net section rupture
|
||
|
Gross section yielding
|
||
|
Local buckling
|
||
|
Block shear failure
|
||
| 5. | A steel rod of 20 mm diameter is used as a tie member in a roof bracing system, and may be subjected to possible reversal of stress due to wind load. What is the maximum permissible length of the member? (Assume slenderness ratio=350) ? | |
|
2000 mm
|
||
|
1750 mm
|
||
|
2500 mm
|
||
|
3000 mm
|
||
| 6. | In an irrigated area 12 m3/s of water is diverted to a 0.32 km ^2 field area for four hours. The soil moisture measurement in the field done after irrigation showed that 0.4 m of water has been stored in the root zone. The water application efficiency (correct to nearest decimal) in this case is ? | |
|
74 %
|
||
|
58.5 %
|
||
|
85 %
|
||
|
66.6 %
|
||
| 7. | In which of the following wastewater treatment units is organic matter destroyed and stabilised by anaerobic bacteria ? | |
|
Oxidation pond
|
||
|
Sedimentation tank
|
||
|
Septic tank
|
||
|
Trickling filter
|
||
| 8. | Void ratio is defined as the ratio of ? | |
|
Total volume to the volume of voids
|
||
|
Volume of solids to the volume of voids
|
||
|
Volume of voids to the total volume
|
||
|
Volume of voids to the volume of solids
|
||
| 9. | A 30 m tape was tested before a survey and found to have a length of 29.93 m. If the length of a line measured with this tape is 270 m. find the true length of the line ? | |
|
272.23 m
|
||
|
269.37 m
|
||
|
274.18 m
|
||
|
273.99 m
|
||
| 10. | From among the different pollutants listed that cause air pollution, identify the secondary air pollutant. ? | |
|
Sulphuric acid (H?SO4)
|
||
|
Suspended particular matter (SPM)
|
||
|
Oxides of Nitrogen (NO?)
|
||
|
Sulphur dioxide (SO?)
|
||