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UPSC Civil services Entrance exams General Studies test # General Science Strategies for Enhancement in Food Production Prepare / Learn

Q1. Lysine rich Maize variety is

A. IR-10

B. Sonalika

C. Shakti

D. Kalayansona

Answer : Option C
Explaination / Solution:

Lysine is a type of amino acids present in the proteins. Maize variety Shakti is rich in lysine amino acids.

UPSC Civil services Entrance exams General Studies test # General Science Magnetism and Matter Prepare / Learn

Q2. A bar magnet of magnetic moment 1.5 J/T lies parallel to the direction of a uniform magnetic field of 0.22 T. What is the torque acting on it?

A. 0.0J

B. 0.3J

C. -0.3J

D. 0.23J

Answer : Option D
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Wave Optics Prepare / Learn

Q3. The refractive index of glass is 1.5 which of the two colors red and violet travels slower in a glass prism?

A. violet component of white light travels slower than the red component

B. both red and violet travel faster at the same speed

C. both red and violet travel slower at the same speed

D. red component of white light travels slower than the violet component

Answer : Option A
Explaination / Solution:

The refractive index and wavelength are inversly related. The wavelength of violet is least in the visible region so it bends the most.

UPSC Civil services Entrance exams General Studies test # General Science Biodiversity and Conservation Prepare / Learn

Q4. Cleanliness observed by human beings will adversely affect the habitats of:

A. Secondary consumers

B. Decomposers

C. Detritivores

D. Scavengers

Answer : Option D
Explaination / Solution:

Scavenger feeds on dead animal and plant material present in the habitat. Cleanliness observed by human beings will adversely affect the habitat of the scavengers.

UPSC Civil services Entrance exams General Studies test # General Science Coordination Compounds Prepare / Learn

Q5.

K_{3} C o F_{6}

is high spin complex. What is the hybrid state of Co atom in this complex?

s p^{3} d

s p^{3} d^{2}

d^{2} s p^{3}

d s p^{2}

d^{2} s p^{3}

Answer : Option B
Explaination / Solution:

CN is 6 so octahedral complex with hybridization

s p^{3} d^{2}

UPSC Civil services Entrance exams General Studies test # General Science Animal Kingdom Prepare / Learn

Q6. Which among the following is a gregarious pest?

A. Bombyx

B. Apis

C. Locusta

D. Laccifer

Answer : Option C
Explaination / Solution:

Locust (Locusta) is a gregarious pest belonging to phylum Arthropoda.

UPSC Civil services Entrance exams General Studies test # General Science Money and Banking Prepare / Learn

Q7. One of the various quantitative instruments used by the central bank in during deflation is

A. Fix CRR

B. Reduce CRR

C. Raise CRR

D. Remove CRR

Answer : Option B
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Electronic Devices Prepare / Learn

Q8. In P-N- P transistor operating as an amplifier with common emitter configurations a change in base current from

100 μ A

200 μ A

produces a change in collector current from 10 mA to 18 mA. The current gain of transistor is

A. 12.5

\times 1 0^{- 3}

B. 25.0

\times 1 0^{- 3}

Answer : Option D
Explaination / Solution:

Current gain of transistor

$β = \frac{△ I_{c}}{△ I_{b}} = \frac{(18 - 10) \times 10^{- 3} A}{(200 - 100) 10^{- 6} A} = \frac{8 \times 10^{- 3}}{100 \times 10^{- 6}} \frac{8 \times 10^{- 3}}{10^{- 4}} = 80$

UPSC Civil services Entrance exams General Studies test # General Science Introduction to Index Number Prepare / Learn

Q9. A weighted aggregate price index where the weight for each item is its current-period quantity is called the

A. Aggregate index

B. Laspeyres Index

C. Paasche Index

D. Consumer Price Index

Answer : Option C
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Human Reproduction Prepare / Learn

Q10. Division of human egg is

A. Triploblstic

B. Holoblstic

C. Meroblastic

D. Dynoblastic

Answer : Option C
Explaination / Solution:

Meroblastic is the type of incomplete cleavage that occurs in very yolky eggs, in which the egg cytoplasm but not the yolk divides.