SSC-JUNIOR ENGINEER (Civil & Structural) Online Exam 2019 (Part-IV)

Total Questions: 50

1. Which of the following statements is/are true?

(i) Contour lines cross valley line at 90°.

(ii) Contour lines cross ridge line at 90°.

(iii) Contour lines are widely spaced where ground has steep slope.

Correct Answer: B. Both statements (i) and (ii) are true
Solution:A contour is an imaginary line on the ground joining the points of equal elevation. It is a line in which the surface of ground is intersected by a level surface.
  • A contour line must close upon itself, though not necessarily within the limits of the map.
  • Contour lines cross a watershed or ridge line at right angles. They form curves of U-shape round it with the concave side of the curve towards the higher ground (Fig. 1).
  • Contour lines cross a valley line at right angles. They form sharp curves of V-shape across it with convex side of the curve towards the higher ground (Fig. 2).

2. The relation between modulus of rupture of concrete and characteristic compressive of concrete is:

Correct Answer: A.
Solution:Relation between modulus of rupture of concrete and characteristic compressive of concrete is

3. Select the correct option from the following.

Correct Answer: B. Measurement book and muster are extremely important and basic documents, and should be in the custody of technical staff.
Solution:The measurement Book is a most important record. It is the basis of all accounts of quantities of work done, purchase made and it must contain such a complete record of facts as to be conclusive evidence in court of law. The description of the work/materials must be lucid, and such as to admit of easy identification and check.

4. Which of the following expression is used to calculate Annual depreciation' by straight. line method? Where 'O' is original value, 'S' is scrape value and 'N' life of structure in years.

Correct Answer: B. (O - S) / N
Solution:The straight-line method of depreciation assumes a constant rate of depreciation.

This is where the "straight line" in "straight-line depreciation" comes from.

To calculate the straight-line depreciation rate for your asset, simply subtract the salvage value from the asset cost to get total depreciation, then divide that by useful life to get annual depreciation:

Annual depreciation
= (purchase price salvage value)/useful life

5. Match the pairs.

(a) Original cost of property minus the depreciation amount up to the previous year.

(i) Salvage value

(b) Due to fear of war or riot property cannot fetch full market value

(ii) Distress value

(c) The value of property building at the end of its utility period without being dismantled

(iii) Book value

 

(a)(b)(c)
A.(i)(ii)(iii)
B.(iii)(ii)(i)
C.(i)(iii)(ii)
D.(ii)(i)(iii)

 

Correct Answer: B.
Solution:(a) Book Value: Book Value is the amount shown in the account book after allowing the necessary depreciation. The Book Value of the property at a particular year is original cost minus the amount of depreciation upto previous year. The Book Value depends upon the amount of depreciation allowed per year and will gradually increase year to year and at the end of utility period of property the Book Value will be only Scrap Value.

(b) Distress Value: If the property is sold at lower price than that which can be obtained for it in open market is called as Distress Value. This may be due to various reasons which are mentioned below.

  • Financial crisis for vendor due to which he/she sells the shop or property at very low price.
  • Panic due to Riots, Earthquake etc.
  • Quarrel among the partners.
  • Sentimental reasons.

(c) Salvage Value: It is the value of the building at the end of the utility period without being dismantled. For example, A machine after the completion of it's usual span of life or when it becomes uneconomical to use, it may be sold and the same machine may be purchased by the other person for use for some other purpose. The price at which he purchased that machine is called as Salvage Value and which is called as Sale Value.

6. The inner annual rings surrounding the central portion or core of a tree is _________.

Correct Answer: D. heart wood
Solution:Heart Wood: Heart wood consists of innermost annual rings. It is usually dark in colour. It is considered to be the most strong, durable and compact portion of the tree. It provides strong and durable timber for various engineering purposes.

7. What is the maximum limit of super elevation as recommended by IRC on hilly roads?

Correct Answer: B. 10%
Solution:Depends on (a) slow moving vehicle and (b) heavy loaded trucks with high CG. IRC specifies a maximum super-elevation of 7 per cent for plain and rolling terrain, while that of hilly terrain is 10 per cent and urban road is 4 per cent. The minimum super elevation is 2-4 per cent for drainage purpose, especially for large radius of the horizontal curve.

8. Which of the following is a method used in a field to determine the permeability of soil?

Correct Answer: A. Pumping out of well method
Solution:No explanation given in the book

9. Two distances 200 m and 298 m are measured from techeometer instrument and corresponding staff intercepts are 2 m and 3 m respectively. Additive constant will be:

Correct Answer: D. 4
Solution:

10. The storage of water below the bottom of the lowest sluice way in a reservoir is called:

Correct Answer: D. dead storage
Solution:The volume of water stored between the normal pool level and the minimum pool level is known as the useful storage. The volume of water below the minimum pool level is known as the dead storage and is not useful under ordinary operating conditions. The volume of water stored between the normal pool level and the maximum level corresponding to a flood is called surcharge storage, and is usually uncontrolled. The terms bank storage and valley storage are referred to the volume of water stored in the pervious formations of the river banks and the soil above it.