OSP-3rd Day

1.

1 point

What is the grade of Concrete used for encasing GI/DWC in Bridge
crossing?

M25

M20

M10

M15

2.

1 point

What is the Concrete grade of bottom PCC for NP3 Type circular MH?

M25

M15

M10

M20

3.

1 point

DWC pipe is not used when the location is exposed to ….

direct sunlight.

high winds.

heavy rains

All of the above.

4.

1 point

What is the minimum depth allowed in case of water body crossing
by open trench method and only one Hume pipe up to 600mm dia is
used as a culvert to equalize the water level on both side of road without
any protection ?

1.5 m

2.5 m

3.0 m

1.65 m

5.

1 point

What is the minimum vertical clearance required for crossings of
existing utilities by HDD or OT?

450mm

500mm

250mm

None of the above.

6.

1 point

Where is the joint closures installed for jointing of OFC?

ILA

Hand Hole

Man Hole

All of the above

7.

1 point

At what minimum distance MH/HH shall be located beyond the
banks/limits of water body / embankment of bridge on both sides of
crossing?

20M

As indicated in drawing.

Any of the above.

None of the above.

8.

1 point

What is the size of concrete encasing of GI pipes for Bridge/Culvert
crossing?

150mm X 150mm

250mm X 250mm

200mm X 200mm

300mm X 300mm

9.

1 point

What is the loop length of OFC kept inside the MH/HH for Intracity work?

25 m

10 m

15 m

20 m

10.

1 point

What is the minimum length of GI pipe to be extended beyond the
banks/limits of water body / embankment of bridge on both sides of
crossing?

20m

15m

25m

10m

11.

1 point

What is the minimum length of GI pipe that shall be extended beyond
highway / road / railroad RoW on each side ?

3 M

2 M

5 M

1 M

12.

1 point

What is the minimum thickness and diameter of PCC for NP3 Type
circular MH?

150mm and 1430mm

125mm and 1000mm

200mm and 1430mm

200mm and 1400mm

13.

1 point

What is the minimum horizontal and vertical separation to be
maintained from power cables during manual trenching and HDD?

600mm

500mm

550mm

450mm

14.

1 point

What is the air pressure range for DIT of ducts ?

5-7 bar

7-10 bar

7-9 bar

7-12 bar

15.

1 point

While blowing of OFC, what is the maximum acceptable compressed
air temperature?

<50 Deg C

<60 Deg C

<55 Deg C

<65 Deg C