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UPSC Civil services Entrance exams General Studies test # General Science Development Experience Of India a Comparison with Neighbors Prepare / Learn

Q1. China’s HDI rank in the world is ____

A. 78

B. 80

C. 81

D. 799

Answer : Option C
Explaination / Solution:

"The HDI is the actual level of human development (accounting for inequality)" and "the HDI can be viewed as an index of "potential" human development (or the maximum IHDI that could be achieved if there were no inequality)".

UPSC Civil services Entrance exams General Studies test # General Science Cell Cycle and Cell Division Prepare / Learn

Q2. A plant X has 2n= 8 chromosomes, how many chromosomes are present in daughter cells after meiosis II.

A. 16 chromosomes

B. 8 chromosomes

C. 4 chromosomes

D. 2 chromosomes

Answer : Option C
Explaination / Solution:

The number of chromosome reduces to half at the end of meiosis cell division. If plant has 2n= 8 chromosome the number of chromosomes present in daughter cells after meiosis II is 4 only.

UPSC Civil services Entrance exams General Studies test # General Science Surface Chemistry Prepare / Learn

Q3. A biochemical catalyst is

A. Nitrogen molecule

B. A carbohydrates

C. An enzyme

D. An amino acid

Answer : Option C
Explaination / Solution:

Enzymes are biological catalyst, they catalize different chemical reactions in body.

UPSC Civil services Entrance exams General Studies test # General Science Electric Charges and Fields Prepare / Learn

Q4. A uniformly charged conducting sphere of 2.4 m diameter has a surface charge density of

8 0.0 μ C / m^{2}

. (a) Find the charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?

A. 1.55×10−3C,1.6×108Nm2/C

B. 1.25×10−3C,1.2×108Nm2/C

C. 1.35×10−3C,1.6×108Nm2/C

D. 1.45×10−3C,1.6×108Nm2/C

Answer : Option D
Explaination / Solution:

UPSC Civil services Entrance exams General Studies test # General Science Biotechnology Principles and Processes Prepare / Learn

Q5. The smallest bands in the agarose gel will be towards

A. Cathode

B. Middle of the gel

C. Anode

D. Wells

Answer : Option C
Explaination / Solution:

The smallest segment of DNA in the agrose gel will be towards anode or positively charged ends. The DNA fragments are negatively charged and moves towards negatively charged anode.

UPSC Civil services Entrance exams General Studies test # General Science Mechanical Properties of Solids Prepare / Learn

Q6. A steel cable with a radius of 1.5 cm supports a chairlift at a ski area. If the maximum stress is not to exceed

1 0^{8}

m^{- 2}

, what is the maximum load the cable can support?

A. 6.87

\times

1 0^{4}

B. 7.07

\times

1 0^{4}

C. 6.97

\times

1 0^{4}

D. 7.17

\times

1 0^{4}

Answer : Option B
Explaination / Solution:
No Explaination.

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

Q7.

An ideal gas is enclosed in a cylinder with a movable piston on top. The piston has a mass of 8 000 g and an area of 5.00 $c m^{2}$ and is free to slide up and down, keeping the pressure of the gas constant. How much work is done as the temperature of 0.200 mol of the gas is raised from 20.0 $^{\circ}$ C to 300 $^{\circ}$ C?

A. 486 J

P_{i}

B. 476 J

C. 466 J

D. 456 J

Answer : Option C
Explaination / Solution:

in isobaric process

$W = n R (T_{f} - T_{i})$

$W = 0.2 \times 8.31 (300 - 20) = 466 J$

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

Q8. Why, according to our reading, did Darwin take so long to publish the Origin of Species?

A. Darwin wanted to share his theory as quickly as possible once he returned from his voyage on the Beagle

B. It took twenty years for Darwin to develop a theory

C. Darwin was concerned about the reaction of others to the implications of his theory.

D. Darwin suffered from a number of illnesses

Answer : Option C
Explaination / Solution:

Charles Darwin knew that once he announced his findings, he would become the center of a debate between religion and science. He knew he would shake everything that people had believed for so long. Darwin waited 20 years to present his work to the public.

UPSC Civil services Entrance exams General Studies test # General Science States of Matter Prepare / Learn

Q9. A person living in Shimla observed that cooking food without using pressure cooker takes more time. The reason for this observation is that at high altitude:

A. temperature increases

B. pressure increases

C. pressure decreases

D. temperature decreases