Explore topic-wise MCQs in Civil Engineering.

This section includes 19 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

Which one of the following statement is incorrect regarding the electromagnetic radiation?

A. these are produced by the motion of electric charge
B. the oscillation of charged particles sets up changing electric fields
C. the changing electric fields induce the changing magnetic fields in the surrounding medium
D. none of these
Answer» E.
Discussion
2.

Remote sensing techniques make use of the properties of ___________ emitted, reflected or diffracted by the sensed objects:

A. electric waves
B. sound waves
C. electromagnetic waves
D. wind waves
Answer» D. wind waves
Discussion
3.

A reduction of nitrogen nutrient in plants:

A. affects leaf colour
B. reduces pigment concentration
C. increase the visible reflectivity
D. all of these
Answer» E.
Discussion
4.

Which one of the following statements is correct regarding the GPS satellites?

A. the nominal altitude is about 20,200 km
B. the inclination of axis satellite is 55°
C. the satellite transmits two l band signals (l1 with 1575.42 mhz and l2 with 1276.6 mhz)
D. all of these
Answer» E.
Discussion
5.

The object of photo-interpretation is:

A. identification
B. recognition of objects
C. judging the significance of objects
D. all of these
Answer» E.
Discussion
6.

The optical property of a water body depends on:

A. absorption by the dissolved material
B. absorption by the suspended particulate matter
C. scattering by the suspended particulate matter
D. all of these
Answer» E.
Discussion
7.

Which one of the following statements regarding remote sensing is correct?

A. the interaction of the electromagnetic radiation with the target
B. the emission of electromagnetic radiation from the target
C. both (a) and (b)
D. neither (a) nor (b)
Answer» D. neither (a) nor (b)
Discussion
8.

Which one of the following factors does not affect the scale of the air photographs?

A. focal length
B. flying height
C. ground elevation
D. none of these
Answer» E.
Discussion
9.

In case of reflection and refraction of electromagnetic radiation,

A. angle of incidence = angle of refraction
B. angle of incidence = angle of reflection
C. angle of refraction = sum of the angles of incidence and refraction
D. all the above
Answer» C. angle of refraction = sum of the angles of incidence and refraction
Discussion
10.

Which one the following is a correct statement?

A. the vertical section of the soil extending into the parent material, is called profile
B. the layers of the soil parallel to the earth surface are called horizons
C. the transitional layer between two adjoining horizons is called boundary
D. all of these
Answer» E.
Discussion
11.

sensor IFOV is proportional to:

A. sin2
B. cos2
C. sec2
D. tan2
Answer» D. tan2
Discussion
12.

Which one of the following parameters is considered to determine the reflectance of a vegetation canopy?

A. solar zenith angle
B. azimuth angle
C. look angle
D. all of these
Answer» E.
Discussion
13.

Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena:

A. cloud evolution
B. vegetative cover
C. snow cover
D. all of these
Answer» E.
Discussion
14.

A perfectly black body:

A. is a diffuse emitter
B. absorbs all the radiations of every wave lengths
C. emits power of every wave length
D. all the above
Answer» E.
Discussion
15.

The reflectance from a surface is called specular reflection if it follows:

A.
B. lambert\s cosine law
C. planktan\s law
D. all of these
Answer» B. lambert\s cosine law
Discussion
16.

The coherence length over which there is a strong relationship between amplitudes is;

A. directly proportional to the bandwidth
B. inversely proportional to the bandwidth
C. the square of the bandwidth
D. none of these
Answer» C. the square of the bandwidth
Discussion
17.

Coherence of two electromagnetic waves takes place if their phase difference is:

A. constant in time
B. constant in space
C. constant in time and space
D. none of these
Answer» D. none of these
Discussion
18.

Formation of snow occurs if the cloud temperature is

A. just above the freezing point
B. at the freezing point
C. below the freezing point
D. none of these
Answer» D. none of these
Discussion
19.

In the given figure the phase of

A. crest a
B. b
C. trough c is 3
D. all of these
Answer» E.
Discussion