SSC-Junior Engineer (Civil & Structural) Online Exam 2018 (Part-III)

Total Questions: 40

21. What is the full form of PVCN with respect to pain?

Correct Answer: A. Pigment Value Concentration Number
Solution:Pigment volume concentration, or PVC, is the term used to describe the volume (not weight) of pigment in a paint film. PVC tells us how much of the volume of the paint film is made up of pigment versus the amount made up of binder. The PVC of paint is important to know when choosing a paint, so that you get the quality paint job you want without paying too much.

According to ISO 4618/1, the PVC refers to the ratio of the volume of pigments and other solids particles in a product to the total volume of non-volatile matter.

22. A lateral shift in the transition curve is given by:

Correct Answer: C. L²/24R
Solution:A transition curve may be defined as a curve of varying radius of infinity at tangent point to a design circular curve radius provided in between the straight and circular path in order that the centrifugal force was gradual. This is also known as easement curve.

Due to the application of transition curve on both sides of the circular curve, the circular curve gets shifted towards inner side and this shift is called lateral shift and is given by:

Where, R is the radius of the circular curve and Lₛ is the designed length of the transition curve.

23. On parallel joining of pipes the outflow from the main source __________.

Correct Answer: A. Increases
Solution:No explanation given in the book

24. An overflow dam is also known as a ________.

Correct Answer: C. spillway
Solution: Spillway: It discharges the excess water of reservoir beyond the full permission level and acts as a safety valve of reservoir. If excess water is not discharged, water level of reservoir will be raised and water may start flowing over the dam, a phenomenon known as over-topping. The spillways can be classified as:

(a) overflow spillway,
(b) side channel spillway,
(c) emergency spillway,
(d) cute or trough spillway and
(e) shaft or siphon spillway.

25. Which shaped lines indicate the presence of a ridge?

Correct Answer: B. U-shaped

26. The raising of outer edge of pavement with respect to inner edge is known as ________.

Correct Answer: B. Super elevation

27. Which of the following is an assumption for Bernoulli's equation?

Correct Answer: A. Flow is incompressible

28. Offsets are of two types, _________.

Correct Answer: C. perpendicular and oblique

29. The most accurate method used in a laboratory for the determination of water content is:

Correct Answer: D. Oven drying method

30. The limiting of neutral axis for a beam having effective depth of 400 mm with Fe250 grade steel is:

Correct Answer: C. 212 mm