76.

77.

78.

79.

80.

81.

82.

83.

84.

85.

073/23

Capillary rise in silt is usually between നി.

A) 0.30 to 1.00 B) 1.00 to 10.00

C) 10.00 to 30.00 D) Greater than 30

For Darcy’s law to be valid in soil, Reynolds number of flow through soil should be

less than
A) 500 B) 2000 C) 100 D) 1

For determination of plastic limit of a soil, it is air dried and sieved through sieve of
size
A) 2mm B) 75 micron C) 425 micron D) 100 micron

Which of the following instrument is used to determine specific gravity of liquids ?
A) Pycnometer B) Hydrometer C) Hygrometer D) Pyrometer

In which of the following method in determination of water content, acetylene gas is
employed ?

A) Radiation method B) Sand bath method

C) Alcohol method D) Calcium carbide method

Which among the following is the material best suited for railway ballast ?
A) Sand B) Broken stone C) Moorum D) Kankar

Railway yards in which wagons are pushed upto summit by engine and allowed to
gravitate down the slope is known as

A) Flat yard B) Hump yard

C) Gravitational yard D) Locomotive yard
Which of the following is not used as material for tunnel lining ?
A) Stone B) Brick

C) Cast iron D) Cement mortar

Consider the following statements regarding flexible pavement.
i. Strength of subgrade soil influences design thickness.
ii. Flexible pavement resists load because of its flexural strength.
iii. Flexible pavement undergoes deformation under loading.
iv. Maximum intensity of stresses occurs in top layer of pavement.

Which among the above statements is/are true ?

A) i, ii and iii only B) ii, iii and iv only
C) i, iii and iv only D) All are correct

As per IRC, minimum length of overtaking zone should be

(OSD stands for Overtaking Sight Distance)
A) 2x OSD B) 3x OSD C) 4x OSD D) 5x OSD