110+ Design of Reinforced Cement Concrete Elements Solved MCQs

1.

Steel is mainly an alloy of

A. iron and carbon
B. sulphur and zinc
C. zinc and tin
D. phosphorous and tin
Answer» A. iron and carbon
2.

Which of the following is a disadvantage of Steel?

A. high strength per unit mass
B. high durability
C. fire and corrosion resistance
D. reusable
Answer» C. fire and corrosion resistance
3.

Elastic Modulus of Steel is                      

A. 1.5 x 109 n/mm2
B. 2.0 x 105 n/mm2
C. 2.0 x 105 n/m2
D. 1.5 x 109 n/m2
Answer» B. 2.0 x 105 n/mm2
4.

Poisson’s ratio of steel is                  

A. 0.1
B. 1.0
C. 0.3
D. 2.0
Answer» C. 0.3
5.

Structural Steel normally has carbon content less than                

A. 1.0%
B. 0.6%
C. 3.0%
D. 5.0%
Answer» B. 0.6%
6.

What happens when Manganese is added to steel?

A. decreases strength and hardness of steel
B. improves corrosion resistance
C. decreases ductility
D. improves strength and hardness of steel
Answer» D. improves strength and hardness of steel
7.

Phosphorous in Steel ?

A. yields high strength
B. affects weldability
C. increases resistance to corrosion
D. improves resistance to high temperature
Answer» B. affects weldability
8.

Which of the following is added to steel to increase resistance to corrosion?

A. carbon
B. manganese
C. sulphur
D. copper
Answer» D. copper
9.

(i) tensile strength and yield property (ii) Ductility (iii) Welding (iv) Corrosion resistance

A. i and ii only
B. i and iii only
C. i, ii, iii
D. i and iv only
Answer» C. i, ii, iii
10.

Chrome and Nickel are added to Steel to improve                    

A. corrosion resistance and high temperature resistance
B. strength
C. ductility
D. weldablity
Answer» A. corrosion resistance and high temperature resistance
11.

What does R.C.C. stand for?

A. reinforced cement concrete
B. reinforced concrete cement
C. reinforced combined cement
D. reinforced constituent cement
Answer» A. reinforced cement concrete
12.

The maximum area of tension reinforcement in beams shall not exceed

A. 2%
B. 4%
C. 0.15%
D. 1.5%
Answer» B. 4%
13.

Thickened part of a flat slab over its supporting column, is technically known as

A. drop panel
B. capital
C. column head
D. cannot be determined
Answer» A. drop panel
14.

The minimum cube strength of concrete used for a prestressed member, is                  

A. 50 kg/cm2
B. 150 kg/cm2
C. 350 kg/cm2
D. 100 kg/cm2
Answer» C. 350 kg/cm2
15.

For initial estimate for a beam design, the width is assumed                            

A. 1/15th of span
B. 1/10th of span
C. 1/20th of span
D. 1/30th of span
Answer» D. 1/30th of span
16.

A foundation rests on                            

A. base of the foundation
B. subgrade
C. foundation soil
D. base of the foundation, subgrade and foundation soil
Answer» D. base of the foundation, subgrade and foundation soil
17.

Which of the following is correct criteria to be considered while designing?

A. structure should be aesthetically pleasing but structurally unsafe
B. structure should be cheap in cost even though it may be structurally unsafe
C. structure should be structurally safe but less durable
D. structure should be adequately safe, should have adequate serviceability
Answer» D. structure should be adequately safe, should have adequate serviceability
18.

What is serviceability?

A. it refers to condition when structure is not usable
B. it refers to services offered in the structure
C. it means that the structure should perform satisfactorily under different loads, without discomfort to user
D. it means that structure should be economically viable
Answer» C. it means that the structure should perform satisfactorily under different loads, without discomfort to user
19.

Analysis is referred to                            

A. determination of cost of structure
B. determination of axial forces, bending moment, shear force etc.
C. determination of factor of safety
D. drafting architectural plans and drawings
Answer» B. determination of axial forces, bending moment, shear force etc.
20.

The structure is statically indeterminate when                                 

A. static equilibrium equations are insufficient for determining internal forces and reactions on that structure
B. static equilibrium equations are sufficient for determining internal forces and reactions on that structure
C. structure is economically viable
D. structure is environment friendly
Answer» A. static equilibrium equations are insufficient for determining internal forces and reactions on that structure
21.

Which of the following is one of the methods of analysis prescribed in the code for steel structures?

A. hinge analysis
B. limit analysis
C. roller analysis
D. dynamic analysis
Answer» D. dynamic analysis
22.

Which method is mainly adopted for design of steel structures as per IS code?

A. limit state method
B. working stress method
C. ultimate load method
D. earthquake load method
Answer» A. limit state method
23.

Which IS code is used for general construction of steel?

A. is 456
B. is 256
C. is 800
D. is 100
Answer» C. is 800
24.

Which of the following relation is correct?

A. permissible stress = yield stress x factor of safety
B. permissible stress = yield stress / factor of safety
C. yield stress = permissible stress / factor of safety
D. permissible stress = yield stress – factor of safety
Answer» B. permissible stress = yield stress / factor of safety
25.

In Working Stress Method, which of the following relation is correct?

A. working stress ≤ permissible stress
B. working stress ≥ permissible stress
C. working stress = permissible stress
D. working stress > permissible stress
Answer» A. working stress ≤ permissible stress
26.

(i) tension members, (ii) long column, (iii) short column, (iv) connections

A. i < ii < iii < iv
B. i < iv < ii < iii
C. i = iii < ii < iv
D. iv = i < iii < ii
Answer» C. i = iii < ii < iv
27.

What is Load Factor?

A. ratio of working load to ultimate load
B. product of working load and ultimate load
C. product of working load and factor of safety
D. ratio of ultimate load to working load
Answer» D. ratio of ultimate load to working load
28.

Which of the following is not a main element of framed structure?

A. beam
B. column
C. shear connector
D. lattice member
Answer» C. shear connector
29.

Which of the following are subjected to both axial loads and bending moments?

A. beam-column
B. column
C. lattice member
D. beam
Answer» A. beam-column
30.

How much percentage increase of permissible stress is allowed when dead load, live load and wind load are considered together in working stress method?

A. 50%
B. 33%
C. 40%
D. 60%
Answer» B. 33%
31.

Limit State Method is based on

A. calculations on service load conditions alone
B. calculations on ultimate load conditions alone
C. calculations at working loads and ultimate loads
D. calculations on earthquake loads
Answer» C. calculations at working loads and ultimate loads
32.

What is limit state?

A. acceptable limits for safety and serviceability requirements before failure occurs
B. acceptable limits for safety and serviceability requirements after failure occurs
C. acceptable limits for safety after failure occurs
D. acceptable limits for serviceability after failure occurs
Answer» A. acceptable limits for safety and serviceability requirements before failure occurs
33.

Which of the following format is used in limit state method?

A. single safety factor
B. multiple safety factor
C. load factor
D. wind factor
Answer» B. multiple safety factor
34.

Which of the following factors is included in the limit state of strength?

A. fire
B. failure by excessive deformation
C. corrosion
D. repairable damage or crack due to fatigue
Answer» B. failure by excessive deformation
35.

What is permanent action according to classification of actions by IS code?

A. due to self weight
B. due to construction and service stage loads
C. due to accidents
D. due to earthquake loads
Answer» A. due to self weight
36.

What is variable action according to classification of actions by IS code?

A. due to self weight
B. due to accidents
C. due to construction and service stage loads
D. due to earthquake loads
Answer» C. due to construction and service stage loads
37.

Which of the following criteria is to be satisfied in selection of member in limit state method?

A. factored load > factored strength
B. factored load ≤ factored strength
C. factored load ≥ factored strength
D. sometimes factored load < factored strength (or) factored load > factored strength
Answer» B. factored load ≤ factored strength
38.

The partial factor of safety for resistance governed by yielding is :

A. 1.10
B. 1.5
C. 2.0
D. 1.25
Answer» A. 1.10
39.

The partial factor of safety for resistance governed by ultimate strength is :

A. 1.10
B. 1.5
C. 2.0
D. 1.25
Answer» D. 1.25
40.

In the case of composite sections, the percentage of tensioned reinforcement is less than?

A. simple beams
B. complex beams
C. tee beams
D. edge beams
Answer» A. simple beams
41.

If the compression zone contains part of precast element, the computation is done by considering?

A. grades of concrete
B. cross section
C. durability
D. strength characteristics
Answer» B. cross section
42.

The effective bonding between the two parts of composite beams is developed by

A. smoothing
B. roughening
C. painting
D. detacahing
Answer» B. roughening
43.

The design of shear connections depends upon the strength of                          

A. ex situ cast concrete
B. in situ cast concrete
C. tampered concrete
D. prestressed concrete
Answer» B. in situ cast concrete
44.

When ties are not provided the permissible values of the horizontal shear stress is?

A. 0.6n/mm2
B. 4.6n/mm2
C. 1.6n/mm2
D. 8.6n/mm2
Answer» A. 0.6n/mm2
45.

The ties consisting of single bars and multiple leg stirrups should have a spacing not exceeding                          

A. 600mm
B. 400mm
C. 1100mm
D. 900mm
Answer» A. 600mm
46.

If the surface is rough tamped and without links to withstand a horizontal shear stress of 0.6n/mm2 and assuming the moduli of elasticity of precast and insitu cast concrete to be equal the centroid of the composite section is located 110mm from the top of the slab, second moment area of composite section is 2487×105mm4, calculate ultimate shearing resistance?

A. 14
B. 12
C. 18
D. 21
Answer» B. 12
47.

Design ultimate horizontal shear stress with nominal links and the contact surface are as cast (assume τ = 1.2n/mm2)?

A. 15kn
B. 23kn
C. 12kn
D. 24kn
Answer» D. 24kn
48.

Which type of cables are advantages in reducing the effective shear?

A. straight
B. curved
C. trapezoidal
D. longitudinal
Answer» B. curved
49.

Which type of shear reinforcement should be provided for members with thin webs?

A. maximum shear reinforcement
B. minimum shear reinforcement
C. nominal shear reinforcement
D. tensile reinforcement
Answer» C. nominal shear reinforcement
50.

The various codes recommend empirical relations to estimate                          

A. ultimate shear resistance
B. ultimate torsional resistance
C. ultimate bending resistance
D. ultimate load
Answer» A. ultimate shear resistance
51.

Explanation: The various codes recommend empirical relations to estimate the ultimate shear resistance of the section by considering the flexure shear and web shear cracking

A. steel and concrete
B. steel and water
C. steel and aggregates
D. steel and plastic
Answer» A. steel and concrete
52.

In case of pre tensioned member, the computations of transmission length are influenced by?

A. bond
B. flexure
C. torsion
D. tension
Answer» A. bond
53.

When prestress is transferred to concrete by means of external anchorages which pressure is developed?

A. bearing
B. twisting
C. torsion
D. bent
Answer» A. bearing
54.

The bearing pressure on the concrete is given as                          

A. 0.4fci
B. 0.8fci
C. 0.12fci
D. 0.2fci
Answer» B. 0.8fci
55.

The effective punching area Apun is generally the contact area of                          

A. tendon device
B. anchorage device
C. stress device
D. strain device
Answer» B. anchorage device
56.

The end block of a beam has a rectangular section 100mm wide by 200mm deep, the force of cable is 200kn. Find the actual bearing pressure?

A. 30n/mm2
B. 40n/mm2
C. 20n/mm2
D. 10n/mm2
Answer» C. 20n/mm2
57.

The end block of a prestressed concrete beam has a rectangular section; a cable carrying a force of 200kn is to be anchored against the end block at the centre if the cube strength of concrete at transfer is 30n/mm2. Design the maximum permissible bearing pressure?(Abr = 10000mm2)

A. 24n/mm2
B. 48n/mm2
C. 54n/mm2
D. 12n/mm22
Answer» A. 24n/mm2
58.

The prestressed concrete slab systems are ideally suited for                      

A. roofs
B. slabs
C. beam
D. column
Answer» B. slabs
59.

The precast prestressed hollow core slabs, with or without topping is an important structural element in                      

A. structures
B. industries
C. aquariums
D. nurseries
Answer» B. industries
60.

                  

A. floor panels
B. tendons
C. wall coatings
D. reinforcements
Answer» A. floor panels
61.

One way slabs may be supported across the entire width of the slab by means of

A. columns
B. piers
C. ridges
D. footings
Answer» B. piers
62.

The simple or continuous slabs are analyzed for                      

A. design foundation
B. design reinforcement
C. design moments
D. design slab
Answer» C. design moments
63.

The design of a two-way-slab supported on all four sides involves the computation of

A. moments
B. cross sections
C. bending moment
D. deformations
Answer» C. bending moment
64.

A simple prestressed flat slab is generally supported by a network of                      

A. beams
B. columns
C. spans
D. deflections
Answer» B. columns
65.

The proportioning of tendons in design of prestressed concrete simple flat slab between the column and middle strips may be based on                      

A. moments
B. codes
C. deflections
D. loads
Answer» B. codes
66.

The design principles of continuous flat slab floors are similar to                      

A. one way slab
B. two way slab
C. continuous
D. deformed
Answer» B. two way slab
67.

The vertical portion between each tread on the stair is called:

A. going
B. nosing
C. winder
D. riser
Answer» D. riser
68.

The figure below represents a:

A. dog-legged stairs
B. turning stairs
C. straight stairs
D. well stairs
Answer» A. dog-legged stairs
69.

member supporting                    

A. horizontal, handrail
B. vertical, landing
C. vertical, handrail
D. horizontal, landing
Answer» C. vertical, handrail
70.

How many types of stairs are there based on the material?

A. 4
B. 5
C. 8
D. 6
Answer» B. 5
71.

The space housing the stairs is called:

A. staircase
B. stair room
C. stair head
D. stair space
Answer» A. staircase
72.

Which IS code gives details about wooden stairs?

A. is 2634
B. is 2643
C. is 1634
D. is 1643
Answer» C. is 1634
73.

                     stairs are a variation of L shaped stairs.

A. winder
B. spiral
C. half turn
D. switch back
Answer» A. winder
74.

The decorative cap to the top of a newel post is called:

A. finial
B. fillet
C. easing
D. apron
Answer» A. finial
75.

How many types of stone stairs are used?

A. 2
B. 5
C. 4
D. 3
Answer» B. 5
76.

After how many stairs is a landing provided in public, residential places?

A. 18
B. 20
C. 12
D. 16
Answer» C. 12
77.

Eccentrically loaded columns have to be designed for combined axial and                  

A. shear force
B. bending moments
C. torsion
D. creep
Answer» B. bending moments
78.

What is the minimum value of eccentricity provided in columns?

A. 50 mm
B. 20 mm
C. 30 mm
D. 45 mm
Answer» C. 30 mm
79.

The minimum diameter provided for the longitudinal bars is                  

A. 15 mm
B. 20 mm
C. 12 mm
D. 18 mm
Answer» C. 12 mm
80.

What is the minimum number of longitudinal bars provided in the rectangular column?

A. 4
B. 5
C. 6
D. 8
Answer» A. 4
81.

Which of the following reservoirs is also known as                        

A. ground service reservoirs
B. elevated reservoirs
C. over head reservoirs
D. storey reservoirs
Answer» A. ground service reservoirs
82.

The ends of                  shall be properly anchored.

A. longitudinal reinforcement
B. transverse reinforcement
C. torsional reinforcement
D. shear reinforcement
Answer» B. transverse reinforcement
83.

For longitudinal reinforcing bar, the nominal cover should not be less than

A. 30 mm
B. 20 mm
C. 40 mm
D. 50 mm
Answer» C. 40 mm
84.

In                        system, air relief valves are not required.

A. gravity
B. intermittent
C. continuous
D. grid
Answer» C. continuous
85.

Which of the following is one of the layouts of distribution systems?

A. dual system
B. gravity system
C. grid iron system
D. pressure system
Answer» C. grid iron system
86.

Which of the following system is also known as an interlaced system?

A. tree system
B. grid iron system
C. circle system
D. radial system
Answer» B. grid iron system
87.

Which of the following is also known as a ring system?

A. circle
B. reticulation
C. radial
D. interlaced
Answer» A. circle
88.

Varignon’s theorem is called as

A. principle of forces
B. principle of moments
C. principle of points
D. theory of couple
Answer» B. principle of moments
89.

Foundations can be broadly classified under                      

A. shallow foundation and deep foundation
B. pile foundation
C. none of the mentioned
D. all of the mentioned
Answer» A. shallow foundation and deep foundation
90.

which of the following, is a type of shallow footing?

A. spread footing
B. pile foundation
C. pier foundation
D. well foundation
Answer» A. spread footing
91.

Which of the below is the most commonly used shallow foundation?

A. strap footing
B. spread footing
C. combined footing
D. raft footing
Answer» B. spread footing
92.

The pressure intensity beneath the footing depends upon                        

A. rigidity of the footing
B. soil type
C. condition of soil
D. all of the mentioned
Answer» D. all of the mentioned
93.

footing can be calculated.

A. bending moment and shear force
B. bearing pressure
C. none of the mentioned
D. all of the mentioned
Answer» A. bending moment and shear force
94.

In conventional design, allowable bearing capacity should be taken smaller than which of the following value?

A. safe bearing capacity and allowable bearing pressure
B. the pressure intensities beneath the footing
C. none of the mentioned
D. all of the mentioned
Answer» A. safe bearing capacity and allowable bearing pressure
95.

In cohesive soil, the pressure distribution beneath the footing is                        

A. linear
B. non linear
C. zero
D. none of the mentioned
Answer» A. linear
96.

When do strap footings are used in foundation?

A. to transfer load of an isolated column
B. distance between the columns are long
C. two column loads are unequal
D. all of the mentioned
Answer» B. distance between the columns are long
97.

When two column loads are unequal, which of the possible footing can be provided?

A. strap footing
B. raft footing
C. trapezoidal combined footing
D. mat footing
Answer» C. trapezoidal combined footing
98.

The formula d=a×√(3q)/m is used to calculate                    

A. depth of soil
B. height of column
C. depth of concrete bed block
D. height of footing
Answer» C. depth of concrete bed block
99.

If the wall or column under construction is near some other property, it will not be possible to spread the footing to both the sides of War or column. In search case which footing is used?

A. simple pad footing
B. eccentric footing
C. isolated footing
D. reinforced footing
Answer» B. eccentric footing
100.

Identify the given footing below.

A. strip footing
B. combine footing
C. reinforced footing
D. isolated footing
Answer» A. strip footing
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