Short Notes on Residual Chlorine

Residual Chlorine:

Residual Chlorine is a low level of chlorine remaining in water after its initial application. This is an indicator that Chlorine Demand is satisfied. It constitutes an important safeguard against the risk of subsequent microbial contamination after treatment The provision of IRWM 2000 are as under:

Short Note on Completion report

Completion report

The object of a completion Report is to compare the cost of work actually constructed with those provided in the last sanctioned estimate. The completion report of a project duly verified by the Accounts Officer should be submitted to the Railway Board within 18 months after the end of the financial half-year in which the completion estimate is submitted. It should state the expenditure in the same details as the abstract estimate sanctioned by the Railway Board and should indicate any material modifications thereto. In addition it may contain such other information as would in the opinion of the Railway Administration be of interest to the Railway Board. 

Short Note on Setting Out of Circular Curve by Theodolite and Tape Method.

Setting Out of Circular Curve by Theodolite and Tape Method.

i) First of all the tangential angles δ 1 , δ 2 , δ 3 etc are calculated by the formula given below.

δ1 = 1718.9 X C1__ minutes

R δ 2 = 1718.9 X C2 __ minutes

R δ 3 = 1718.9 X C3 __ minutes and so on R

Also the total deflection angel

for the 1st Chord 1 = δ 1

For 2nd chord 2 = δ 1 + δ 2

For 3rd chord 3 = δ 1 + δ 2 + δ 3

ii) Then set up a theodolite over the first tangent Point T1 and level it.

iii) With both the plates clamped at Zero, dissect the telescope to the ranging rod at the point of intersection B and bisect it.

Short Notes on Maintenance of PRC sleepers

Maintenance of PRC sleepers

(I) Concrete sleepers should normally be maintained with heavy on track tamers. For spot attention, off track tampers may be used.

(ii) Only 30 sleeper spaces are to be opened out at a time between two fully boxed stretches of track of 30 sleeper lengths each in case LWR track exists.

(III) The concrete sleepers should be compacted well and uniformly to give a good riding surface centre binding of mono block concrete sleepers should be avoided and for that purpose the central 800mm. Of the sleeper should be hard packed.

Short Notes on Concrete Mix Design

CONCRETE MIX DESIGN:- The concrete mix design is a process of selecting suitable ingredients for concrete and determining their proportions which would produce, as economically as possible, a concrete mix of necessary workability in plastic stage and provide required strength and durability in hardened stage.

Cement , Sand, Coarse aggregate are mix in a certain proportion which can be 1:4:8, 1:3:6, 1:2:4, 1:1.5:3 i.e. M-10, M-15, M-20 grade of concrete such mixes are known as nominal mix and prepare by volume or weight batching. However if grade of concrete exceed M-20 than proportion of ingredients design in lab than implicated in filled. Such higher grads of concrete are complemented by inclusion of admixture so as to achieve higher compressive strength. Proportion of such admixture are essential in mix design to get more workability with less water cement ratio. Design mix is adopted in important nature of works and a weigh batcher is also must at site to mix proper weight of ingredients. 

Short Notes on Types of L-Xing & Elimination of Unmanned L-Xings

Types of L-Xing  & Elimination of Unmanned L-Xings 

Type of L-Xing :- L-Xings have been classified in various categories in consultation with road authorities depending upon the volume of Road/Rail Traffic passing on them and their visibility conditions. These are classified as under:- 

Short Notes on Fineness modulus

 Fineness modulus:- 

Fineness modulus of an aggregate in an index number which gives an average size of particle in the aggregate. Fineness modulus is roughly proportional to the average size of particle in the aggregate. Coarser the aggregate higher the fineness modulus and vice versa. It is determined by adding the cumulative percentage of material coarser than each of the following test sieves and dividing the sum by 100. Test sieves 3.35 mm, 2.36mm,1.8 mm,600 micron,300 micron,150 micron and 75 micron 

Index - Question Bank for LDC Examination Civil Engineering (Pway/Works)

Q Bank on Building materials for Civil Engineering LDC Exam MCQ (New Paitern)

Q bank on Question on AT Welding for LDC Exam - MCQ (New Pattern)

Q Bank on Railway Station and Passenger Amenities for Civil Engineering LDC Exam

Q Bank on Level dressings for Civil Engineering LDC Exam - MCQ (New Pattern)

Q Bank on Track and track gauges for Civil Engineering LDC Exam - MCQ (New Pattern)

Q bank on General Feature for Civil Engineering LDC Exam - MCQ (New Pattern)

Q Bank on Sanitary Engineering for Civil Engineering LDC Exam - MCQ (New Pattern)

Q Bank on State whether true of false for Civil Engineering LDC Exam - MCQ (New Pattern)

Q Bank on Fill up the blanks with suitable words for Civil Engineering LDC Exam - MCQ (New Pattern)

Q bank on New Lines, Doublings & Gauge Conversion Projects for Civil Engineering LDC exam

Q bank on Schedule of Dimensions for Civil Engineering LDC Exam - MCQ (New Pattern)

Q Bank on Engineering Surveys and Project Reports for Civil Engineering LDC Exam MCQ (New Pattern)

Q Bank on BRIDGE For Civil Engineering LDC Exam - MCQ (New Pattern)

Q Bank on Principles of Surveying for Civil Engineering LDC Exam

Q Bank on Water supply for Civil Engineering LDC Exam - MCQ (New Pattern)

Q bank on Sanitary Engineering for Civil Engineering LDC Exam - MCQ (New Pattern)

Q Bank On Question Bank (USFD) for Civil Engineering LDC exam - MCQ (New Pattern)

Q Bank on Soil mechanics for Civil Engineering LDC Exam - MCQ (New Pattern)

Q bank on Accidents, Derailments & Disaster Management for Civil Engineering LDC Exam - MCQ (New Pattern)

Que - Design a column,square in section, to carry an axial load of 4500000N.

Q :- Which are the categories of bridges in Railways on the basis of consideration of water way ?

Q What is distressed bridge. What are categories of distressed bridges and what is SR imposed on distressed bridges ?

Q What is schedule of inspection of AEN and DEN for distressed bridge?

Q. Define the following.

Q . What are duties of AEN (open line) in regard to track machine?

Q. What are different types of small track machines used on rail and welding operations in Railways?

Q. What are functions of Ballast?

Que Write note on:- Detailed Specifications of Ballast.

Q Bank on BRIDGE for Civil Engineer LDC Exam MCQ New Pattern

Q Bank on DESIGN for Civil Engineer LDC Exam MCQ New Pattern

Q Bank on GENERAL for civil Engineer LDC Exam MCQ (New Pattern)

Q Bank on LAND for Civil Engineer LDC Exam MCQ (New Pattern)

Q Bank for Civil Engineer LDCE Exam - WORKS

Q Bank for Civil Engineer LDCE Exam - TRACK

Short Notes

Q.Bank for Civil Engineer LDCE Exam - Write short Notes on (1)

Q Bank for Civil Engineer LDCE Exam - Write short notes on. (2)

Q. Bank for Civil Engineer LDCE Exam - Write short notes on (3)

Q Bank for Civil Engineer LDCE Exam - Write short notes on. (4)

Q Bank for Civil Engineer LDCE Exam - Write short Notes on (5)

Q Bank for Civil Engineer LDCE Exam - Write short notes (6)

Q Bank for Civil Engineer LDCE Exam - Write Short Notes (7)

Q Bank for Civil Engineer LDCE Exam - Write short rules (8)

Q Bank for Civil Engineer LDCE Exam Write the short notes (9)

Q Bank for Civil Engineer LDCE Exam - Write short notes(10)

Q Bank for Civil Engineer LDCE Exam - Write short notes (11)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (13)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (14)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (15)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (16)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (17)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (18)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (19)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (20)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (21)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (22)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (23)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (24)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (25)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (26)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (27)

Q Bank for Civil Engineer LDCE Exam- Write Short Notes on (28)

Q Bank for Civil Engineer LDCE Exam - Write short note (29)

Q Bank - Accidents, Derailments & Disaster Management for Civil Engineering - MCQ (New Pattern)

(1)ACD means

(a)Anti collision Devise*

(b)Accidents causing death 

(c)Accidents causing derailment 

 (d)None of the above 

Answer - (a)Anti collision Devise*

Q Bank - Railway Station & Passenger Amenities for Civil Engineering LDC Exam

1.A Railway Stations is provided for the following purpose

(a)To entrain or detrain the passengers

(b)To load or off load the goods or parcels

(c)To enable the faster trains to overtake the slower trains

(d)All the above*

Answer - (d)All the above*

2.For Category “A” stations, the annual passenger earning should be 

(a)Rs. 10 crores of more

(b)Rs. 6 crores or more*

(c)Rs. 3 crores or more

(d)Less than Rs. 3 crores

Answer -(b)Rs. 6 crores or more*

3.Category “B” station are those, where annual passenger earnings are

(a) Rs. 6 to 10 crores 

(b) Rs. 3 to 6 crores* 

(c) Rs. 1 to 3 crores 

(d) Less than Rs. 1 crore

Answer -(b) Rs. 3 to 6 crores* 

Q. Bank For Civil Engineer LDCE Exam - Design a column,square in section, to carry an axial load of 4500000N.

Q - Design a column,square in section, to carry an axial load of 4500000N. 

Ans - 

Step 1:-

Let us adopt M25 grade concrete and mild steel reinforcements.

Allowable direct compressive stress=6N/mm2 in concrete

Allowable compressive stress in steel=130N/mm2

Q bank on Question on AT Welding for LDC Exam - MCQ (New Pattern)

1- In new Rail as well as second hand rails how much end bends of the rails in vertical are permitted when checked with one meter straight edge before welding?

(i) +0.5mm, -0 mm in vertical 

(ii) +0.2mm, -.3 mm in vertical 

(iii) +0.3mm, -2 mm in vertical 

(iv) 0 mm, +.5 mm in vertical 

Answer  -  (i) +0.5mm, -0 mm in vertical  

2- In new Rail as well as second hand rails how much end bends of the rails in lateral direction are permitted when checked with one metre straight edge before welding? 

 (i) ± 0.2 mm in lateral direction 

 (ii) ± 0.3 mm in lateral direction 

 (iii) ± 0.5 mm in lateral direction* 

 (iv) All are above right 

Answer  -  (iii) ± 0.5 mm in lateral direction

3- What is the life of portion? 

 (i) 2 years

(ii) No specific life.

 (ii) 6 months 

 (iv) 1 year

Answer  - (ii) No specific life.

Q Bank on Level dressings for Civil Engineering LDC Exam - MCQ (New Pattern)

1.TVU is abbreviated for 

a) Track vulnerable unit 

b) Train vehicle unit * 

c) Total vehicle unit 

d) Traffic variation unit

Answer - b) Train vehicle unit * 

2. Indication post for detonator should be provided at a distance of ---------meter and --------- meter for BG level crossing

a) 400 meters in 800 meters

b) 500 meters and 1200 meters 

c) 600 meters and 1200 meter *

d)600 meters and 1000 meters

Answer -  c) 600 meters and 1200 meter *

Q Bank on Track and track gauges for Civil Engineering LDC Exam - MCQ (New Pattern)

1.Track Structure for private siding with operating speed of 80  to 100 kmph is same as the track structure as specified for

a)  Group B route

b) Group A route

c) Group D route* 

d)Group C route

Answer - c) Group D route

2. Track structure for private siding with operating speed 50 to 80 kmph is the same as track structure as specified for 

a)Group A route

b) Group B route

c) Group D route 

d)Group E route*

Answer -d)Group E route*

Q Bank on State whether true of false for Civil Engineering LDC Exam - MCQ (New Pattern)

1.Phosphor Bronze bearing need not be greased. True

2.Primer coat protects the steel from weather.False

3.Clear span is more than the effective span False

4.Danger level is always above HFL.False

5.Acetelyne gas cylinders are always kept vertical True 

6.A speed restriction of 15 kmph can be imposed in a Neutral section.  False

7.A bridge of single span of 12.1 m is called a minor bridge. False

Q Bank on Fill up the blanks with suitable words for Civil Engineering LDC Exam - MCQ (New Pattern)

1.Super structure including bearings of all steel Girder of span 12.20m and above is to be inspected by ...SE./Br....once in 5 years

2.A bridge foundation having less then 2M depth below bed level in case of arch bridges and 1.2M depth below bed level in case of other bridges is termed as ...Shallow foundation.. 

3.Paint Zinc chromate primer confirms to IS ...104.... 

4.Paint Zinc chromate Red oxide primer confirms to IS ...2074....

5.Paint Red Oxide confirms to IS ...123.... 

6.Paint Aluminium confirms to IS ...2339.... 

7.Abbreviation of DFT ......Dry Film Thickness......... 

8.Metallising is the process of spraying of ...Zinc.. or ..Aluminium.. on the surface prepared girder.

9.Greasing of bearings of Steel girder bridges is done once in -...Three.. years. 

Q bank on Schedule of Dimensions for Civil Engineering LDC Exam - MCQ (New Pattern)

(1) The minimum centre to centre distance of a B.G. track in mid-section is ........... mm 

(a)4200

(b)4265

(C) 4350 

(d) 4000

Answer - (b)4265

(2) Any deviations from the Schedule of dimensions will require prior sanction of .......... 

(a) Zonal Rly 

(b) Rly Board 

(c) CRS

(d) All of them 

Answer -(b) Rly Board 

(3) The maximum gradient in station yards should be ....... Unless special safely devices are adopted and/or special rules enforced. 

(a) 1 in 400

(B) 1 in 500 

(c) 1 in 1000 

(D) 1 In 600

Answer -(a) 1 in 400

(4) The recommended maximum gradient in the year for B.G is- 

 (a) 1 in 1000 

 (b) 1 in 1200

 ( c) 1 in 1500 

 (d) 1 in 1800

Answer - (b) 1 in 1200

Q Bank on Engineering Surveys and Project Reports for Civil Engineering LDC Exam MCQ (New Pattern)

1.Which of the following survey are required to be done before the construction of new railway line.

(a)Traffic survey

(b)Reconnaessarice survey

(c)Preliminary survey

(d)Final location survey

(e)All the above *

Answer - (e)All the above *

2. Which of the instruments is not used in Reconnaissance survey.

(a)Prismatic compass

(b)Dumpy level *

(c)Aneroid Barometer

(d)Pedometer 

Answer - (b)Dumpy level *

Q Bank on BRIDGE For Civil Engineering LDC Exam - MCQ (New Pattern)

1. Initial inspection for PSC girders / Welded girder bridges as per IRBM 1998 

 a) Within one year of installation* 

 b) Once in 3 years 

 c) Once in 2 years 

 d) Once in 5 years 

Answer -  a) Within one year of installation* 

 2. Periodical inspection of Welded girders a) Once in 3 years 

 b) Once in 3 years* 

 c) Once in 2 years

 d) Once in 5 years 

Answer - b) Once in 3 years* 

Q Bank on Principles of Surveying for Civil Engineering LDC Exam

1.Distance between two points is measured by

(a)Pacing

(b)Pedometer

(c)Passometer

(d)Chaining 

(e)All the above* 

Answer - (e)All the above* 

2.The following instrument is used to set out a right angle

(a)Cross staff

(b)Optical staff

(c)Prism square

(d)None of the above

(e)All the above* 

Answer -(e)All the above*