Explore topic-wise MCQs in Graduate Aptitude Test (GATE).

This section includes 86 Mcqs, each offering curated multiple-choice questions to sharpen your Graduate Aptitude Test (GATE) knowledge and support exam preparation. Choose a topic below to get started.

1.

Abhishek is elder to Savar. Savar is younger to Anshul. Which of the given conclusions is logically valid and is inferred from the above statements?

A. Abhishek is elder to Anshul
B. Anshul is elder to Abhishek
C. Abhishek and Anshul are of the same age
D. No conclusion follows
Answer» E.
2.

A firm is selling its product at Rs. 60 per unit. The total cost of production is Rs. 100 and firm is earning total profit of Rs. 500. Later, the total cost increased by 30%. By what percentage the price should be increased to maintained the same profit level.

A. 5
B. 10
C. 15
D. 30
Answer» B. 10
3.

Select the pair that best expresses a relationship similar to that expressed in the pair: Medicine: Health

A. Science: Experiment
B. Wealth: Peace
C. Education: Knowledge
D. Money: Happiness
Answer» D. Money: Happiness
4.

Which of the following options is the closest in meaning to the word given below: Primeval

A. Modern
B. Historic
C. Primitive
D. Antique
Answer» D. Antique
5.

Dimension of hydraulic conductivity is

A. LT-2
B. L3T-1
C. ML-3
D. LT-1
Answer» E.
6.

Mantle xenoliths are observed in

A. Kimberlite
B. Granite
C. Pegmatite
D. Granulite
Answer» B. Granite
7.

Choose the correct expression from the following that explains the changing vertical position of a point on the land surface at any time (Surface Uplift – SU, Bedrock Uplift – BU, Deposition – D, Compaction – C, Erosion – E).

A. SU = BU – D – C – E
B. SU = BU – D + C – E
C. SU = BU + D – C + E
D. SU = BU + D – C – E
Answer» E.
8.

A chondrite-normalized REE pattern of quartzo-feldspathic gneiss shows a sharp positive Eu anomaly. This indicates presence of

A. plagioclase in the sample.
B. quartz in the sample
C. clinopyroxene in the sample.
D. sillimanite in the sample.
Answer» B. quartz in the sample
9.

Which of the following is a type of dam?

A. Anchor
B. Shotcrete
C. Geogrid
D. Buttress
Answer» E.
10.

In high-grade metamorphism, biotite melting indicates

A. rock cooling
B. rock hydration
C. rock uplifting
D. rock dehydration
Answer» E.
11.

On a 1:10,000 scale map, the length of a fault trace on a horizontal plane is represented as 5 cm. The same on a 1:25,000 scale vertical aerial photograph is _________ cm.

A. 1
B. 2
C. 3
D. 4
Answer» C. 3
12.

The void ratio (in percentage) of sandstone is 25. Its porosity in percentage is ________.

A. 10
B. 20
C. 30
D. 40
Answer» C. 30
13.

The test of organic-walled foraminifera is termed as

A. Microgranular
B. Hyaline
C. Porcellaneous
D. Tectinous
Answer» E.
14.

Which of the following logging techniques is best suited to estimate the shaliness of hydrocarbon reservoirs?

A. Resistivity
B. Sonic
C. Induction
D. Gamma ray
Answer» E.
15.

Which one of the following stable isotopic ratios is used for estimation of palaeo-temperature of seawater?

A. 13C/12C
B. 18O/16O
C. 87S/86Sr
D. 15N/14N
Answer» C. 87S/86Sr
16.

In a homogeneous anisotropic medium, the physical property varies

A. with position but not with direction
B. with both position and direction
C. with direction but not with position
D. neither with position nor with direction
Answer» D. neither with position nor with direction
17.

An active trench is present in the vicinity of

A. Andaman & Nicobar Islands
B. Gulf of Cambay
C. Lakshadweep
D. Krishna-Godavari delta
Answer» B. Gulf of Cambay
18.

For seismic S-wave velocity, V, the rigidity modulus, μ, is proportional to

A. √V
B. V
C. V2
D. V3
Answer» D. V3
19.

A type of unconformity characterized by the occurrence of sedimentary rocks on igneous/metamorphic rocks is known as

A. angular unconformity
B. nonconformity
C. paraconformity
D. disconformity
Answer» C. paraconformity
20.

Which of the following is NOT an inverse square law?

A. Newton’s law of gravitation
B. Coulomb’s law of electrostatics
C. Coulomb’s law of magnetostatics
D. Hooke’s law
Answer» E.
21.

Which of the following physical properties of rocks has the widest range of variation?

A. Magnetic permeability
B. Dielectric permittivity
C. Seismic velocity
D. Electrical resistivity
Answer» E.
22.

If a radioactive isotope has a decay constant of 1.55 * 10-10 year-1, its half-life (in years) would be

A. 4.57 * 109
B. 4.47 * 109
C. 4.57 * 1010
D. 4.47 * 1010
Answer» C. 4.57 * 1010
23.

The type of wave that arrives first at a station from an earthquake hypocenter is

A. P-wave
B. S-wave
C. Rayleigh wave
D. Love wave
Answer» B. S-wave
24.

Two bodies made up of same material with different dimensions have

A. same resistances and resistivities
B. same resistivities but different resistances
C. same resistances but different resistivities
D. different resistances and resistivities
Answer» C. same resistances but different resistivities
25.

Choose the diamagnetic mineral from the following.

A. Calcite
B. Enstatite
C. Pyrite
D. Ilmenite
Answer» B. Enstatite
26.

Acoustic impedance is the _____________ of density and velocity.

A. sum
B. difference
C. product
D. ratio
Answer» D. ratio
27.

The most abundant mineral in the Earth’s crust is

A. quartz
B. K-feldspar
C. biotite
D. garnet
Answer» B. K-feldspar
28.

The acceleration due to gravity, ‘g’ is maximum at

A. equator
B. poles
C. mid-latitudes
D. sub-tropical regions
Answer» C. mid-latitudes
29.

Amongst the following options, the acceptable value of the Poisson’s ratio of a rock is

A. 0.55
B. 1.00
C. 0.25
D. -1.00
Answer» D. -1.00
30.

Both strength and plasticity of a rock increase with the

A. increase in temperature
B. decrease in strain rate
C. increase in confining pressure
D. increase in pore fluid pressure
Answer» D. increase in pore fluid pressure
31.

Assuming the Earth to be a perfect sphere, its equatorial velocity is approximately __________ km/hr

A. 1600 to 1700
B. 2000 to 2100
C. 1200 to 1300
D. 1800 to 1900
Answer» B. 2000 to 2100
32.

Amongst the following, which one will have the highest P-wave velocity?

A. Granite
B. Diamond
C. Shale
D. Talc
Answer» C. Shale
33.

In a remotely sensed data of a planet, the presence of hydrous species can be inferred using _________region of the electromagnetic spectrum?

A. Radiowave
B. Gamma
C. Infrared
D. Visible
Answer» D. Visible
34.

It takes approximately _________ minutes for sunlight to reach the Earth.

A. 7 to 7.3
B. 8 to 8.3
C. 9 to 9.3
D. 10 to 10.3
Answer» C. 9 to 9.3
35.

The documents expose the cynicism of the government officials – and yet as the media website reflects, not a single newspaper has reported on their existence. Which one of the following inferences may be drawn with the greatest accuracy from the above passage?

A. Nobody other than the government officials knew about the existence of the documents.
B. Newspapers did report about the documents but nobody cared.
C. Media reports did not show the existence of the documents.
D. The documents reveal the attitude of the government officials.
Answer» E.
36.

A smuggler has 10 capsules in which five are filled with narcotic drugs and the rest contain the original medicine. All the 10 capsules are mixed in a single box, from which the customs officials picked two capsules at random and tested for the presence of narcotic drugs. The probability that the smuggler will be caught is

A. 0.50
B. 0.67
C. 0.78
D. 0.82
Answer» D. 0.82
37.

Ravi is taller than Arun but shorter than Iqbal. Sam is shorter than Ravi. Mohan is shorter than Arun. Balu is taller than Mohan and Sam. The tallest person can be

A. Mohan
B. Ravi
C. Balu
D. Arun
Answer» D. Arun
38.

Ten teams participate in a tournament. Every team plays each of the other teams twice. The total number of matches to be played is

A. 20
B. 45
C. 60
D. 90
Answer» E.
39.

Which one of the parts (A, B, C, D) in the sentence contains an ERROR? No sooner had the doctor seen the results of the blood test, than he suggested the patient to see the specialist.

A. no sooner had
B. results of the blood test
C. suggested the patient
D. see the specialist
Answer» D. see the specialist
40.

Choose the grammatically CORRECT sentence:

A. He laid in bed till 8 o’clock in the morning.
B. He layed in bed till 8 o’clock in the morning
C. He lain in bed till 8 o’clock in the morning.
D. He lay in bed till 8 o’clock in the morning.
Answer» E.
41.

Choose the most appropriate pair of words from the options given below to complete the following sentence: The high level of ___ of the questions in the test was ___ by an increase in the period of time allotted for answering them.

A. difficulty, compensated
B. . exactitude, magnified
C. aptitude, decreased
D. attitude, mitigated
Answer» B. . exactitude, magnified
42.

Which one of the following options is the closest in meaning to the word given below? Pacify

A. Excite
B. Soothe
C. Deplete
D. Tire
Answer» C. Deplete
43.

Microfossils are widely used in palaeoceanographic studies. What is the test composition of the microfossil group identified above?

A. Carbonate
B. Phosphate
C. Nitrate
D. Siliceous
Answer» E.
44.

Microfossils are widely used in palaeoceanographic studies. Which of the following microfossil groups is generally found in deep sea below the Carbonate Compensation Depth?

A. Foraminifera
B. Radiolaria
C. Cocoliths
D. Ostracods
Answer» C. Cocoliths
45.

An example of the above type of copper deposit is

A. Kupfersciefer, Germany
B. Chuquicamata, Chile
C. Kurroko, Japan
D. Sudbury, Canada
Answer» C. Kurroko, Japan
46.

Copper ore deposit with significant content of molybdenum occurs in

A. thin layers of shale
B. basic-ultrabasic rocks
C. volcanogenic (rhyolitic) sedimentary rocks
D. andesite porphyry
Answer» E.
47.

A horizontally bedded sandstone outcrop exhibits planar cross-beds at a number of places. The dip directions of the foresets of cross-beds at these locations are: N350°, N17°, N355°, N355°, N15°, N360°, N350°, N13°, N350°, N355°. Find the mean palaeocurrent direction.

A. N15°
B. N350°
C. N355°
D. N360°
Answer» E.
48.

Match the items in Group I with those in Group II. Group I Group II P. Churching 1. Concrete gravity dam Q. Curtain grouting 2. Tunnelling R. Piping 3. Cement S. Pozzolan 4. Earth dam

A. P-2, Q-1, R-4, S-3
B. P-4, Q-1, R-2, S-3
C. P-2, Q-3, R-1, S-4
D. P-1, Q-2, R-3, S-4
Answer» B. P-4, Q-1, R-2, S-3
49.

Arrange the following formations sequentially from older to younger: P. Sargur Schist Q. Kajrahat Limestone R. Cuddalore Sandstone S. Umia Ammonite Bed

A. P, S, Q, R
B. P, Q, R, S
C. P, Q, S, R
D. Q, S, P, R
Answer» D. Q, S, P, R
50.

In a typical coal mine area affected by acid mine drainage, which one of the following acids will be dominant?

A. Nitric acid
B. Sulphuric acid
C. Hydrochloric acid
D. Hydrofluoric acid
Answer» C. Hydrochloric acid