Concrete Technology Quiz-2

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Concrete Technology – 2

1 / 25

Water cement ratio is generally expressed in volume of water required per 

2 / 25

Which of the following R.C. retaining walls is suitable for heights beyond 6 m? 

3 / 25

If the engineer-in-charge approves, the 10 cm cubes may be used for the work test of concrete
provided maximum nominal size of aggregate, does not exceed 

4 / 25

The average permissible stress in bond for plain bars in tension is

5 / 25

The slab is designed as one way if the ratio of long span to short span is

6 / 25

The load carrying capacity of a helically reinforced column as compared to that of a tied column is

7 / 25

A concrete using an air entrained cement 

8 / 25

For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are: 

9 / 25

To hydrate 500kg of cement full water needed, is 

10 / 25

For the construction of cement concrete dams, the maximum permissible size of the aggregates, is

11 / 25

The surface where two successive placements of concrete meet, is known as 

12 / 25

Admixtures which cause early setting and hardening of concrete are called  

13 / 25

‘Ware house pack’ of cement means 

14 / 25

For the construction of thin R.C.C. structures, the type of cement to be avoided, is  

15 / 25

Particles of 0.002 mm size are that of 

16 / 25

High carbon content in the steel causes 

17 / 25

The individual variation between test strength of sample should not be more than 

18 / 25

A beam curved in plan is designed for

19 / 25

The minimum cover in a slab should neither be less than the diameter of the bar nor less than

20 / 25

If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the
grade of concrete, is

21 / 25

In slump test, each layer of concrete is compacted by a steel rod 60 cm long and of 16 mm
diameter for 

22 / 25

For a reinforced concrete section, the shape of shear stress diagram is 

23 / 25

Under normal conditions using an ordinary cement, the period of removal of the formwork, is: 

24 / 25

Concrete mainly consists of

25 / 25

Allowable shear strength of concrete, depends upon 

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