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UPSC Civil services Entrance exams General Studies test # General Science Economic Reforms Since 1991 Prepare / Learn

Q1. Reasons which highlight the importance to privatisation

A. Reduce the cost by minimising wastages

B. Increase employment due to exit policy for sick public enterprises

C. Decline in private monopoly

D. Favour the objective of social welfare

Answer : Option A
Explaination / Solution:

Privatisation is important because the private capital and managerial capabilities can be effectively utilised to improve the performance of the PSUs and minimise wastages.

UPSC Civil services Entrance exams General Studies test # General Science Balance of Payments Prepare / Learn

Q2. Accommodating Items are also called

A. On the line items

B. Below the line items

C. None of the above

D. Above the line items

Answer : Option B
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Measures of Dispersion Prepare / Learn

Q3.

Match the following

A. a(ii), b(i),c(iii)

B. a(iii), b(ii),c(i)

C. a(i), b(iii),c(ii)

D. a(ii), b(iii),c(i)

Answer : Option D
Explaination / Solution:

Quartile Deviation (QD) means the semi variation between the upper quartiles (Q3) and lower quartiles (Q1) in a distribution. The mean deviation (also called the mean absolute deviation) is the mean of the absolute deviations of a set of data about the data's mean. Standard deviation is a measure of the dispersion of a set of data from its mean. It is calculated as the square root of variance by determining the variation between each data point relative to the mean. If the data points are further from the mean, there is higher deviation within the data set.

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

Q4. What is the best description of the change that occurs when

N a_{2} O (s)

is dissolved in water?

A. Oxide ion accepts sharing in a pair of electrons

B. Oxidation number of oxygen increases

C. oxide ion donates a pair of electrons

D. Oxidation number of sodium decreases

Answer : Option C
Explaination / Solution:

Oxide ion donates a pair of electrons

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

Q5. Which programme the ministry of power has launched to improve the efficiency of thermal stations

A. Partnership in power

B. Partnership in excellence

C. Power in excess

D. power in excellence

Answer : Option B
Explaination / Solution:

Today, the private sector by itself and also in joint partnership with the public sector, has started playing a very important role to improve the efficiency of thermal stations

UPSC Civil services Entrance exams General Studies test # General Science Transport in Plants Prepare / Learn

Q6. In plant cell, the cytoplasm of the adjacent cells are connected through bridges called

A. Intercellular bridge

B. Intracellular bridge

C. Cell membrane

D. Plasmodesmata

Answer : Option D
Explaination / Solution:

The cytoplasm of two adjacent cells are connected through a bridge plasmodesmata. Movement of substance in plants takes place through this plasmodesmata.

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

Q7. When chlorine is passed through concentrated hot solution of KOH, the compound formed is

K C l O_{4}

K C l O_{3}

K C l O_{2}

Answer : Option C
Explaination / Solution:

C l_{2}

on treatment with conc. Base form

C l {O_{3}}^{-}

ion.

UPSC Civil services Entrance exams General Studies test # General Science Botany-Sexual Reproduction in Flowering Plants Prepare / Learn

Q8. Statement I: Seed is the basis of agriculture.
Statement II: Dehydration and dormancy of mature seed is crucial for storage of seeds.
Statement III: Seeds of rice and wheat remain viable for several years at normal condition.

A. Statements I and II are correct

B. All statements are correct

C. Statements I and III are correct

D. Statements II and III are correct

Answer : Option A
Explaination / Solution:

Seed is the basis of agriculture. Before storage, seeds are dehydrated in sunlight. Seeds remain dormant till the favorable condition is present. Seeds of wheat and rice remain viable only few years.

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

Q9. One mole of an ideal monatomic gas is at an initial temperature of 300 K. The gas undergoes an isovolumetric process, acquiring 500 J of energy by heat. It then undergoes an isobaric process, losing this same amount of energy by heat. Determine the new temperature of the gas

A. 316 K

B. 301 K

C. 343 K

D. 333 K

Answer : Option A
Explaination / Solution:

for monoatomic gas CV = 1.5R, CP = 2.5R

At const volume,

Q = 500 J

$\begin{aligned} Q = n C_{V} Δ T \\ 500 = 1 \times 1.5 \times 8.31 (T_{1} - 300) \\ T_{1} = 340 K \end{aligned}$

At const pressure Q = 500 J

$\begin{aligned} Q = n C_{P} Δ T \\ 500 = 1 \times 2.5 \times 8.31 (340 - T_{2}) \\ T_{2} = 316 K \end{aligned}$

UPSC Civil services Entrance exams General Studies test # General Science Organisms and Populations Prepare / Learn

Q10. In deep lakes;littoral,limnetic and profundal zones represent:

A. trophic organization

B. community dynamism

C. community stratification

D. community stability

Answer : Option C
Explaination / Solution:

In deep lakes differenet zones are formed according to availabilityof light, food and temperature. These zones are called littoral, limnetic and profundal zone. It is a kind of community stratification or separation.