Consider following statement regarding types of cement:
1) High alumina cement is produced by fusing together a mixture of lime stone, bauxite and gypsum.
2) Final setting time of high alumina cement is less than OPC
3) Initial setting time of rapid hardening cement is less than OPC
4) Rapid hardening cement contains higher percentage of C3S than OPC
Correct statement(s)/are:
Question 2
Pick up the incorrect statement from the following
Question 3
Direction: In the following question consists of two statements Assertion(A) and Reason(R). You have to read the statements carefully and select the answers to these questions using the options below.
Assertion (A): workability of concrete is improved by air entraining agent. Reason(R): air entraining agent increases concrete strength.
Question 4
Statement (I): Low heat cement is preferred for construction of massive structures.
Statement (II): Low heat cement has higher content of Di calcium Silicate (C2S) than OPC
Question 5
Which of the following conditions are recommended for using sulphate resisting cement?
(1) Concrete to be used in foundation and basement, where soil is not infested with sulphates
(2) Concrete used for fabrication of pipes which are likely to be buried in marshy region or sulphate bearing soils
(3) Concrete to be used in the construction of sewage treatment works
Question 6
If a venturimeter having pipe diameter to throat diameter ratio 2:1 has a difference of head observed as 50 cm when observed in an inverted u-tube manometer filled with liquid having density of 12.6 g/cc. If the head loss occurred in the section is 1.4 m find the coefficient of discharge of the venturimeter.
Question 7
Energy loss in flow through nozzle as compared to venturimeter is _______.
Question 8
Speed of a submarine can be measured by ________.
Question 9
A submerged weir is one in which the water level on the down streams side of the weir is :
Question 10
The discharge over a broad-crested weir is maximum when the depth of flow is
