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

Q1. Calculate coefficient of Correlation between price and supply. Interpret the value of correlation coefficient.

A. 0.92

B. 0.95

C. 0.98

D. 0.96

Answer : Option C
Explaination / Solution:

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

Q2. Which of the following programmed was launched in the year of 2000?

A. National Rural Employment Guarantee Act.

B. Pradhan Mantri Gramodaya Yojana

C. Swarna Jayanti Gram Swarozgar Yojana

D. Prime Minister Rozgar Yojana

Answer : Option B
Explaination / Solution:

Pradhan Mantri Gramodaya Yojana was launched in the year 2000-2001 in all the States and Union Territories of India, in order to achieve the objective of sustainable human development in the village level.

UPSC Civil services Entrance exams General Studies test # General Science Cell The Unit of Life Prepare / Learn

Q3. The organelle involved in respiration is

A. Mitochondria

B. Chloroplast

C. Golgi complex

D. Endoplasmic reticulum

Answer : Option A
Explaination / Solution:

Mitochondria are the sites of aerobic respiration. They produce cellular energy in the form of ATP

UPSC Civil services Entrance exams General Studies test # General Science Collection of Data Prepare / Learn

Q4. Indirect Oral Investigation is suitable where

A. All of these

B. Field of investigation is large

C. The incidence concerned is not accessible

D. Concerned informants are not capable of giving information

Answer : Option A
Explaination / Solution:

Under this method, the investigator collects the data indirectly by interviewing the third persons who are supposed to be in close touch with the original informants or the incidence. This method of collecting the data is adopted when the original informants are either not found or found to be reluctant to part with the desired information, or the incidence concerned is not accessible.

UPSC Civil services Entrance exams General Studies test # General Science Environment Sustainable Economic Development Prepare / Learn

Q5. Carrying capacity implies

A. None

B. Generation of wastes should remain within the absorption capactity of the environment

C. Both

D. Resource extraction should remain below the rate of resource regeneration.

Answer : Option C
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Molecular Basis of Inheritance Prepare / Learn

Q6. Which one represents the correct manner of DNA replication?

Answer : Option A
Explaination / Solution:

During replication of DNA, in one strand (3’ to 5’) replication takes place continuously and in other strand it is in small segment and joined together by DNA ligase enzyme.

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

Q7. A coil has a resistance of 48.0

Ω

. At a frequency of 80.0 Hz the voltage across the coil leads the current in it by

53^{\circ}

. Inductance of the coil is

A. 0.94 H

B. 0.114 H

C. 0.124 H

D. 0.84 H

Answer : Option C
Explaination / Solution:

$\begin{aligned} R = 48 Ω \\ f = 80 H z \\ ϕ = 53^{\circ} \\ ω = 2 π f = 2 \times 3.14 \times 80 \end{aligned}$

in series LR circuit

tanϕ=ωLR

tan53∘=2×3.14×80×L48

43=2×3.14×80×L48

L=0.124H

$\begin{aligned} \tan ϕ = \frac{ω L}{R} \\ \tan 53^{\circ} = \frac{2 \times 3.14 \times 80 \times L}{48} \\ \frac{4}{3} = \frac{2 \times 3.14 \times 80 \times L}{48} \\ L = 0.124 H \end{aligned}$

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

Q8. A ball of mass 50 gm is suspended by a spring with a force constant K=49 N/m. The ball is raised to the position at which the spring is not tensioned and is released without a push. The ball will fall through a maximum distance of

A. 0.04 m

B. 0.02 m

C. 0.03 m

D. 0.01 m

Answer : Option D
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science The d- and f- Block Elements Prepare / Learn

Q9.

A g +

ion is isoelectronic with

Z n 2 +

C d 2 +

C u +

P d 2 +

Answer : Option B
Explaination / Solution:

A g +

is isoelectronic with

C d 2 +

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

Q10. When sodium peroxide is treated with dilute sulphuric acid, we get ______.

A. sodium sulphate, hydrogen and oxygen

B. sodium sulphate and oxygen

C. sodium sulphate and hydrogen peroxide

D. sodium sulphate and water

Answer : Option C
Explaination / Solution:

Hydrogen peraoxide is also prepared by the reaction of acid sodium peroxides. Reaction is as follow :