The temperature reinforcement in the vertical slab of a T-shaped R.C. retaining wall is

Bulking of sand is maximum if moisture content is about

Diagonal tension in a beam

According to IS: 4561978, the column or the strut is the member whose effective length is greater
than

When shear stress exceeds the permissible limit in a slab, then it is reduced by

The diameter of ties in a column should be

In counterfort retaining walls, the main reinforcement in the stem at support is

Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to

The purpose of reinforcement in pre-stressed concrete is

Select the correct statement

To minimise the effect of differential settlement, the area of a footing should be designed for

Due to circumferential action of the spiral in a spirally reinforced column

For concreting of heavily reinforced sections without vibration, the workability of concrete
expressed as compacting factor should be

Workability of concrete is directly proportional to

Which of the following statements is incorrect?

Critical section for shear in case of flat slabs is at a distance of

For road pavements, the cement generally used, is

Pick up the incorrect statement from the following:

For a slab supported on its four edges with corners held down and loaded uniformly, the Marcus
correction factor to the moments obtained by Grashoff Rankine’s theory

Addition of pozzolana to ordinary port land cement, causes

Pick up the correct statement from the following:

In a counterfort retaining wall, the main reinforcement is provided on the
(i) Bottom face in front counterfort
(ii) Inclined face in front counterfort
(iii) Bottom face in back counterfort
(iv) Inclined face in back counterfort
The correct answer is

For construction of structures in sea water, the cement generally preferred to, is

Curing of pavements, floors, roofs and slabs, is done by

The centroid of compressive force, from the extreme compression fiber, in limit state design lies at
a distance of
Where xu is the depth of neutral axis at the limit state of collapse

Pick up the correct statement from the following:

The bulk density of aggregates, depends upon

In symmetrically reinforced sections, shrinkage stresses in concrete and steel are respectively

The main object of compaction of concrete, is:

Which of the following has high tensile strength?

Pick up the incorrect statement from the following:

Concrete gains strength due to

To determine the modulus of rupture, the size of test specimen used is

Tricalcium aluminate (C3A)

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

Admixtures which cause early setting and hardening of concrete are called

Pick up the correct statement from the following:

Pick up the incorrect statement from the following:

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

Allowable shear strength of concrete, depends upon

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

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

Pick up the incorrect statement from the following. For performing compressive strength test of
cement

Pick up the incorrect statement from the following:

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

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

Pick up the incorrect statement from the following:

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

To hydrate 500kg of cement full water needed, is

Pick up the correct statement from the following:

In a counterfort retaining wall, the main reinforcement in the stem at mid span is provided on

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

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

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

To ensure constant moisture content in aggregates

Pick up the correct statement from the following:

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

Concrete mainly consists of

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

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

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

A concrete using an air entrained cement

provided on
(i) Bottom face near counterfort
(ii) Top face near counterfort
(iii) Bottom face near centre of span
(iv) Top face near centre of span
The correct answer is

Pick up the correct statement from the following:

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

A beam curved in plan is designed for

Pick up the correct statement from the following:

‘Ware house pack’ of cement means

High carbon content in the steel causes

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

Particles of 0.002 mm size are that of

Ultimate strength of cold drawn high steel wires

The cement whose strength is a little lower than the ordinary cement during the first three
months but attains afterwards the same strength, is known as

The dimensions of a 35 litre forma for measuring aggregates by volume, are:

Ratio of permissible stress in direct compression and bending compression is

Concrete containing

The lower water cement ratio in concrete, introduces

In T-shaped R C. retaining walls, the main reinforcement in the stem is provided on

The aggregate containing moisture in pores and having its surface dry, is known as

Pick up the correct statement from the following:

According to ISI recommendations, the maximum depth of stress block for balanced section of a
beam of effective depth d is

Pick up the correct proportions of chemical ingredients of cement

Internal friction between the ingredients of concrete, is decreased by using

Pick up the correct statement from the following:

In pre-stressed concrete

Pick up the correct statement from the following:

If the effective plan area of a warehouse is 54 sq. m, and maximum height of piles permitted is 270
cm, the number of cement bags to be stored, is

The property of fresh concrete, in which the water in the mix tends to rise to the surface while
placing and compacting, is called

Workability of concrete for a given water content is good if the aggregates, are

For preparing ordinary concrete, the quantity of water used, is

Finer grinding of cement

The light weight aggregates are obtained from

The aggregate impact value of the aggregate used in

For walls, columns and vertical faces of all structural members, the form work is generally
removed after

Efflorescence in cement is caused due to an excess of

For given workability the grading requiring the least amount of water is one that gives

Minimum pitch of transverse reinforcement in a column is

Pick up the incorrect statement applicable to the field test of good cement.

An aggregate is known as cyclopean aggregate if its size is more than

In counterfort type retaining walls
(i) The vertical slab is designed as a continuous slab
(ii) The heel slab is designed as a continuous slab
(iii) The vertical slab is designed as a cantilever
(iv) The heel slab is designed as a cantilever
The correct answer is

Workability of concrete mix with low water cement ratio is determined by

If the average compressive strength is 4000 kg/cm2 and standard deviation is 500, the co-efficient
of variation is

The effect of creep on modular ratio is

The type of aggregates not suitable for high strength concrete and for pavements subjected to
tension, is

The maximum percentage of chemical ingredient of cement is that of

Select the incorrect statement

The commercial name of white and coloured cement in India, is

An excess of flaky particles in concrete aggregates

Increase in the moisture content in concrete

Pick up the correct statement from the following:

The 28 days cube strength of mass concrete using aggregates of maximum size 5 cm for gravity
dams should be

Select the incorrect statement

Permissible compressive strength of M 150 concrete grade is

Cement used for normal concrete construction, is obtained by burning a mixture of

As compared to ordinary Portland cement, high alumina cement has

The maximum amount of dust which may be permitted in aggregates is

If P, Y and Z are the weights of cement, fine aggregates and coarse aggregates respectively and
W/C is the water cement ratio, the minimum quantity of water to be added to first batch, is
obtained by the equation

Examine the following statements:
(i) Factor of safety for steel should be based on its yield stress,
(ii) Factor of safety for steel should be based on its ultimate stress,
(iii) Factor of safety for concrete should be based on its yield stress,
(iv) Factor of safety for concrete should be based on its ultimate stress.
The correct statements are

1.18 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0
kg, 2 kg, 8 kg, 6 kg, 4 kg respectively, the fineness modulus of the aggregate, is

Bulking of sand is

For a longitudinal reinforcing bar in a column, the minimum cover shall neither be less than the
diameter of bar nor less than

Workability of concrete is measured by

The size of fine aggregates does not exceed

The main reason for providing number of reinforcing bars at a support in a simply supported beam
is to resist in that zone

Hardening of cement occurs at

The entrained air in concrete

According to IS: 4561978, the flexural strength of concrete is

Slump test is done for

Di-calcium silicate (C2S)

The limits of percentage p of the longitudinal reinforcement in a column is given by

The risk of segregation is more for

Le-Chatelier’s apparatus is used for testing

According to Whitney’s theory, depth of stress block for a balanced section of a concrete beam is
limited to Where d is effective depth of beam

Construction joints are generally provided in concrete

If a grading curve is horizontal between the portions of 20 mm I.S. Sieve and 4.75 mm I.S. Sieve,
the graded aggregates do not contain

Most common method of pre-stressing used for factory production is

C.R.R.I. charts are used to obtain a relationship between strength of concrete and

Pick up the correct statement from the following:

For the design of retaining walls, the minimum factor of safety against overturning is taken as

If the depth of moist sand in a cylinder is 15 cm and the depth of the sand when fully inundated
with water is 12 cm, the bulking of the moist sand, is

If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60
mm, the particular aggregate will be flaky if its minimum dimension is less than

If the foundations of all the columns of a structure are designed on the total live and dead load
basis, then

Saw dust can be rendered chemically inert by boiling it in water containing

A concrete having a slump of 6.5 cm, is said to be

Shrinkage of concrete depends upon
(i) Humidity of atmosphere
(ii) Passage of time
(iii) Stress
The correct answer is

To obtain a very high strength concrete, use very fine grained

Vicat apparatus is used for

Which of the following losses of pre-stress occurs only in pre-tensioning and not in posttensioning?

The type of aggregates of same nominal size, which contain less voids when compacted, are

Pick up the correct statement from the following:

Pre-stress loss due to friction occurs

Pick up the correct statement from the following:

In the method of voids for determination of the quantity of cement paste, it is assumed that

As compared to ordinary Portland cement, use of pozzolana cement

The following proportion of the ingredients of concrete mix, is not in conformation to arbitrary
method of proportioning

The strength and quality of concrete, depend upon:

The factor of safety for

The preliminary test is repeated if the difference of compressive strength of three test specimens,
exceeds

Setting time of cement increases by adding

According to IS: 4561978, the maximum reinforcement in a column is

According to the recommendations of IS : 456-1978, the expansion joints

The impurity of mixing water which affects the setting time and strength of concrete, is

If the size of panel in a flat slab is 6 m × 6 m, then as per Indian Standard Code, the widths of
column strip and middle strip are

Pick up the incorrect statement from the following:

The concrete mix which causes difficulty in obtaining a smooth finish, possess

While designing the pile as a column, the end conditions are nearly

The internal dimensions of a ware house are 15 m × 5.6 m, and the maximum height of piles is
2.70 m, the maximum number of bags to be stored in two piles, are

Pick up the incorrect statement from the following. While performing preliminary test on concrete

In a spherical dome the hoop stress due to a concentrated load at crown is

I.S. Sieve Nos. 10 mm and 4.75 mm are generally used for grading of

Log Angles machine is used to test the aggregate for

The property of the ingredients to separate from each other while placing the concrete is called