Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

The maximum shear stress (q) in concrete of a reinforced cement concrete beam is

A

$$\frac{{{\text{Shear force}}}}{{{\text{Lever arm}} \times {\text{Width}}}}$$

B

$$\frac{{{\text{Lever arm}}}}{{{\text{Shear force}} \times {\text{Width}}}}$$

C

$$\frac{{{\text{Width}}}}{{{\text{Lever arm}} \times {\text{Shear force}}}}$$

D

$$\frac{{{\text{Shear force}} \times {\text{Width}}}}{{{\text{Lever arm}}}}$$

The steel bars in a reinforced cement concrete beam are embedded __________ of the beam.

A

In the center

B

Near the bottom

C

Near the top

D

At any position

While estimating a reinforced cement structure, the omitted cover of concrete is assumed

A

At the end of reinforcing bar, not less than 25 mm or twice the diameter of the bar

B

In thin slabs, 12 mm minimum or diameter of the bar whichever is more

C

For reinforcing longitudinal bar in a beam 25 mm minimum or diameter of the largest bar which is more

D

All the above

A reinforced cement concrete beam is considered to be made of

A

Homogeneous material

B

Heterogeneous material

C

Composite material

D

Isotropic material

The assumption made in the theory of the reinforced cement concrete beam is that

A

All the tensile stresses are taken up by the steel reinforcement only

B

There is a sufficient bond between steel and concrete

C

The steel and concrete are stressed within its elastic limit

D

All of the above

The allowable tensile stress in mild steel stirrups, reinforced cement concrete, is

A

1400 kg/cm²

B

190 kg/cm²

C

260 kg/cm²

D

230 kg/cm²

In flat roof of reinforced cement concrete, the recommended angle of slope, is

A

Zero

B

A few degrees

C

10°

D

200°

Stoneware pipes used for sewers for carrying sewage normally is joined by __________ joint.

A

Spigot and socket

B

Flanged iron

C

Collar

D

Expansion

A tank is fitted with 8 pipes, some of them that fill the tank and others that are waste pipe meant to those that empty the tank can empty it in 6 hours. If all the pipes are kept open when the tank is full, it will take exactly 6 hours for the tank to empty. How many of these are these are fill pipes?

A

2

B

4

C

6

D

5

The weight of reinforced concrete, is generally taken as

A

2200 kg/m³

B

2300 kg/m³

C

2400 kg/m³

D

2500 kg/m³

Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.

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