Explore topic-wise MCQs in Mongodb.

This section includes 139 Mcqs, each offering curated multiple-choice questions to sharpen your Mongodb knowledge and support exam preparation. Choose a topic below to get started.

51.

Which of the following is the correct hydrometer reading equation?

A. R = Rh’ + Cm ± CL – Cd
B. R = Rh’ + cm + CL – Cd
C. R = Cm ± Rm – Cd + CL
D. R = Rh + Cm ± Cd + CL
Answer» B. R = Rh’ + cm + CL – Cd
52.

The hydrometer method differs from pipette method on the basis of which of the following?

A. Principle of test
B. Taking the observation
C. Method of procedure
D. None of the mentioned
Answer» C. Method of procedure
53.

The dispersing agent correction in hydrometer reading is always__________

A. Positive
B. Both negative and positive
C. Negative
D. Equal
Answer» D. Equal
54.

According to Goldschmidt theory, the plasticity in soil is due to __________

A. Electro-magnetic charges
B. Smooth surface
C. All of the mentioned
D. None of the mentioned
Answer» B. Smooth surface
55.

In calcium carbide method, the gas produced is______

A. methane
B. carbon dioxide
C. acetylene
D. oxygen
Answer» D. oxygen
56.

The dispersing agents in soil particle, may act as __________

A. Cementing agent
B. Separating agent
C. Soluble agent
D. Deflocculating agent
Answer» B. Separating agent
57.

The number of revolutions per second, at which the handle is rotated in process of finding the liquid limit is _________

A. 2
B. 7
C. 4
D. 9
Answer» B. 7
58.

The receiver at the bottom of the assembly in sieve shaking machine is________

A. 4.75mm sieve
B. 425micron
C. pan
D. 75micron
Answer» D. 75micron
59.

The depth of the groove cut by casagrande tool for determining the liquid limit is ______

A. 10 mm
B. 11.0 mm
C. 2 mm
D. 8 mm
Answer» C. 2 mm
60.

The process of removal of organic matter and calcium compounds in the dispersion method is __________

A. Pretreatment
B. Sedimentation
C. Evaporation
D. None of the mentioned
Answer» B. Sedimentation
61.

The apparatus used for finding, WL value by static cone penetrometer method is _________

A. Liquid limit apparatus
B. Pycnometer
C. Cone penetration
D. Rubber balloon cylinder
Answer» D. Rubber balloon cylinder
62.

What is the diameter of the sieve that is used for finding the liquid limit?

A. 275 microns
B. 700 microns
C. 425 microns
D. 200 microns
Answer» D. 200 microns
63.

In consistency of soil, the limits are expressed in terms of__________

A. Per cent water content
B. Area
C. Volume
D. All of the mentioned
Answer» B. Area
64.

Activity of a clay can be determined by laboratory test like __________

A. Wet analysis
B. Liquid limit
C. Plastic limit
D. All of the mentioned
Answer» E.
65.

The unit weight of water in v=(2/g)r2(Vs-Vw/ɳ) is taken as ________

A. 9.81 kn/m²
B. 98.1 n/m²
C. 0.981 kn/m²
D. 9.81 n/m³
Answer» B. 98.1 n/m²
66.

The degree of disturbance of undisturbed sample of clay due to remoulding is expressed by______

A. activity of clay
B. sensitivity
C. thixotropy
D. density index
Answer» C. thixotropy
67.

The sensitivity of honey comb structure of clay is ______

A. 1
B. 8 to 16
C. 2 to 4
D. greater than 16
Answer» D. greater than 16
68.

The curve situated at the right side of the particle size distribution curve is _________

A. Coarse-grained soil
B. Fine-grained soil
C. coarse-grained soil
D. None of the mentioned
Answer» B. Fine-grained soil
69.

Highly over consolidating clays tends to be _________

A. sensitive
B. normal sensitive
C. less sensitive
D. extra sensitive
Answer» D. extra sensitive
70.

Which of the following assumptions is wrong, with respect to sedimentation analysis?

A. The soil particles are spherical
B. Particle settle independent of other particles do not have any effect on its velocity of settlements
C. Soil particles has different specific gravity
D. The walls of jar, in which the suspension is kept do not affect the settlement
Answer» D. The walls of jar, in which the suspension is kept do not affect the settlement
71.

In the pipette method of sedimentation analysis, the soil is treated with __________ to remove organic matter in it.

A. Hydrochloric acid
B. Sodium oxalate
C. Hydrogen peroxide
D. Sodium silicate
Answer» D. Sodium silicate
72.

Clay containing kaolinite, will relatively have a_________ activity.

A. High
B. Intermediate
C. Low
D. Moderate
Answer» D. Moderate
73.

The lower limit of particle size allowed in sedimentation analysis is ________

A. 0.0002 mm
B. 0.04 mm
C. 0.074 mm
D. 0.0004 mm
Answer» B. 0.04 mm
74.

In the formula, f=105√(300 ɳ/(g-1)Vw), the factor ɳ depends on__________

A. Pressure
B. Velocity
C. Temperature
D. Specific gravity
Answer» D. Specific gravity
75.

The shape of particle size curve, which is represented by the coefficient of curvature (Cc) is given by __________

A. Cc = (D30)2/D10×D40
B. Cc = (D40)2/D10×D30
C. Cc = (D30)2/D10×D60
D. Cc = D60/D10
Answer» D. Cc = D60/D10
76.

Which of the following is exhibited by collapsible soil?

A. Silts where cementing agent is soluble
B. Loose bulky grains hold together by capillary stresses
C. All of the mentioned
D. None of the mentioned
Answer» C. All of the mentioned
77.

The larger the sensitivity, ______ the thixotropy hardening.

A. smaller
B. no change in
C. lower
D. larger
Answer» E.
78.

The gain in strength after remoulding is due to______

A. permanent destruction of structure
B. reorientation of molecules
C. rehabilitation of molecular structure
D. crystallization
Answer» D. crystallization
79.

One-point method, used for determining the liquid limit is majorly applicable for finding ________

A. Accurate value
B. Precise value
C. Rough value
D. None of the mentioned
Answer» D. None of the mentioned
80.

The volume of suspension taken in the hydrometer test is __________

A. 500
B. 120
C. 100
D. 1000
Answer» E.
81.

The volume (or) capacity of boiling tube taken in pipette method is about __________

A. 750 ml
B. 1000 ml
C. 500 ml
D. 800 ml
Answer» D. 800 ml
82.

1 poise is equivalent to _________

A. 0.5 NS/m²
B. 0.1 NS/ m²
C. 10-4 K NS/ m²
D. 0.8 NS/ m²
Answer» C. 10-4 K NS/ m²
83.

The loose bulky grains in collapsible soil are held together by__________

A. Inter-molecular force between the soil
B. Compressive stress
C. Capillary stress
D. All of the mentioned
Answer» D. All of the mentioned
84.

The toughness index (It) is defined by the ratio of __________

A. It=WP/IP
B. It=IP/If
C. It=IF/IP
D. It=WL/If
Answer» C. It=IF/IP
85.

Sieving is performed by arranging the various sieves one over the other in the order of their mech openings.

A. True
B. False
C. May be True or False
D. Can't say
Answer» B. False
86.

The volume shrinkage (VS) is defined by the formula _________

A. VS = (VL-VD/VD)×100
B. VS = (VD-VL/VD)×100
C. VS = (WL-WS)SR
D. None of the mentioned
Answer» D. None of the mentioned
87.

For a clay to be active, the activity of it should be __________

A. 0.75-1.40
B. >1.40
C. <0.75
D. <0.75
Answer» C. <0.75
88.

The sedimentation analysis is done with the help of________

A. Hydrometer and Pipette
B. Sieve
C. All of the mentioned
D. None of the mentioned
Answer» B. Sieve
89.

The cone which is used to penetrate the soil pat has a central angle of ___________

A. 26 degree
B. 30 degree
C. 31 degree
D. 40 degree
Answer» D. 40 degree
90.

Shrinking limit can be found out using alternate method, if __________

A. The specific gravity of soil is known
B. Dry volume of soil is known
C. Water content in the soil is known
D. Dry density of soil is known
Answer» B. Dry volume of soil is known
91.

Arrange the following to obtain the correct procedure of sand replacement method.I. Measurement of soil densityII. Determination of water content and dry densityIII. Calibration of the cylinder

A. (I), (II), (III)
B. (III), (II), (I)
C. (III), (I), (II)
D. (I), (III), (II)
Answer» D. (I), (III), (II)
92.

Based on activity number, clays can be classified in to_______ categories.

A. Five
B. Two
C. Three
D. More than five
Answer» D. More than five
93.

A clay is said to be inactive, if the activity is_________

A. <0.75
B. 0.75-1.40
C. >1.40
D. None of the mentioned
Answer» B. 0.75-1.40
94.

The sedimentation analysis is based on _________ law.

A. Stoke
B. Cullman’s
C. Rankine’s
D. None of the mentioned
Answer» B. Cullman’s
95.

In pipette analysis apparatus, the water outlet is present at __________

A. Top
B. Bottom
C. Middle
D. Slightly above bottom
Answer» D. Slightly above bottom
96.

If the collapsible potential values of the soil are 0-1%, what will be the severity of the problem?

A. Severe problem
B. Moderate problem
C. No problem
D. None of the mentioned
Answer» D. None of the mentioned
97.

The Swedish agriculturist who divided the entire range of consistency from liquid to solid states is __________

A. Dupuit’s
B. Laplace
C. Boussinesq
D. Atterberg
Answer» E.
98.

The sensitivity of most clays usually falls in a range of _________

A. 2 to 8
B. 1 to 6
C. 1 to 8
D. 1 to 5
Answer» D. 1 to 5
99.

The researchers who have provided guidance for identifying the potential, foot clayey sand and sand clay found in western US is __________

A. Macveren
B. Holtz and Gibbs
C. All of the mentioned
D. None of the mentioned
Answer» C. All of the mentioned
100.

In Indian Standard (IS : 460-11962) the sieve sizes are given by_____

A. number of openings
B. number of openings per inch
C. size of aperture in mm
D. size of aperture in cm
Answer» D. size of aperture in cm