APSC JE Civil Engineering 2021 PYQ with Answers

1 The shear strength of a soil

• [A] decreases with decrease in normal stress
• [B] is directly proportional to the angle of internal friction of soil
• [C] inversely proportional to the angle of internal friction of soil
• [D] decreases with increase in normal stress

Correct Answer is: [A] decreases with decrease in normal stress

2 Triaxial compression test is used to find

• [A] compressive strength of soil
• [B] permeability of soil
• [C] specific gravity of soil
• [D] shear strength of soil

Correct Answer is: [D] shear strength of soil

3 The process of compaction of a soil involves

• [A] expulsion of pore water
• [B] expulsion of air voids
• [C] expulsion of both pore water and air voids
• [D] None of the above

Correct Answer is: [B] expulsion of air voids

4 The minimum water content at which the soil just begins to crumble when rolled into threads 3 mm in diameter is known as

• [A] liquid limit
• [B] plastic limit
• [C] shrinkage limit
• [D] permeability limit

Correct Answer is: [B] plastic limit

5 In a liquid limit test, the moisture content at 10 blows was 70% and that at 100 blows was 20%. The liquid limit of the soil is

• [A] 35%
• [B] 50%
• [C] 65%
• [D] 90%

Correct Answer is: [C] 65%

6 Correction is to be applied to the measured length when a chain that is not of the designated length is used. If L' is the actual length and L is the designated length, then

• [A] corrected length = (L/L') x measured length
• [B] corrected length = (L' /L) x measured length
• [C] corrected length = (L' x L) x measured length
• [D] corrected length = (L+L) x measured length

Correct Answer is: [B] corrected length = (L' /L) x measured length

7 A series of closely spaced contour lines represents a/an

• [A] steep slope
• [B] uniform slope
• [C] horizontal slope
• [D] overhanging cliff

Correct Answer is: [A] steep slope

8 Two inter-visible points A and B on level ground of length 50 m is plotted in a plane table drawing. The plane table is now to be set at point B. The method of orientation of the plane table would be

• [A] backsighting
• [B] two-point problem
• [C] intersection
• [D] traversing

Correct Answer is: [B] two-point problem

9 Cross-staff is used for

• [A] setting out right angles
• [B] measuring contour gradients
• [C] taking levels
• [D] measuring distances

Correct Answer is: [A] setting out right angles

10 Ranging in chain survey means

• [A] looking at an isolated point not on the line
• [B] establishing an intermediate point on the line
• [C] determining distance between end points
• [D] determining the offset distance

Correct Answer is: [B] establishing an intermediate point on the line