General Science | General Studies test | UPSC Civil services Entrance exams Online Objective Test

UPSC Civil services Entrance exams General Studies test # General Science Computer Science and Applications Prepare / Learn

Q1. RAM means:

A. Random Access Memory

B. Rigid Access Memory

C. Rapid Access Memory

D. Revolving Access Memory

Answer : Option A
Explaination / Solution:
No Explaination.

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

Q2. The correct sequential order of pathway is

A. Glycolysis,TCA cycle, ETS cycle

B. TCA cycle,Glycolysis,ETS cycle

C. Glycolysis.ETScycle,TCA cycle

D. ETS cycle,TCA cycle,glycolysis

Answer : Option A
Explaination / Solution:

There is a sequential, orderly pathway functioning, with one substrate forming the next and with glycolysis, TCA cycle and ETS pathway following one after another.

UPSC Civil services Entrance exams General Studies test # General Science Dual Nature of Radiation and Matter Prepare / Learn

Q3. When ultraviolet light of wavelength 1000

\overset{0}{A}

is incident on molybdenum, then the maximum velocity of ejected electron (given: work function of molybdenum = 5.0eV) is

A. 1.7

\times 1 0^{8} c m s^{- 1}

B. 1.9

\times 1 0^{8} c m s^{- 1}

C. 1.6

\times 1 0^{8} c m s^{- 1}

D. 1.8

\times 1 0^{8} c m s^{- 1}

Answer : Option C
Explaination / Solution:
No Explaination.

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

Q4. Metal carbonates decompose on heating to give metal oxide and carbondioxide. Which of the metal carbonates is most stable thermally?

A. Sr CO3

B. Ca CO3

C. Mg CO3

B a C O_{3}

B a C O_{3}

Answer : Option D
Explaination / Solution:

B a C O_{3}

is very stable due to size compatibility factor . A larger cation can stablise a larger anion.Group 2 element become more thermally stable down the group.

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

Q5. A message signal of frequency 10 kHz and peak voltage of 10 volts is used to modulate a carrier of frequency 1 MHz and peak Voltage of 20 volts. Determine the modulation index

A. 0.5

B. 2

C. 0.25

D. 1

Answer : Option A
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Organic Chemistry Some Basic Principles and Techniques Prepare / Learn

Q6. In which of the following representations given below spatial arrangement of group/ atom different from that given in structure ‘A’?

A. (i) and (iii)

B. (i) and (iv)

C. (i) and (ii)

D. (ii) and (iii

Answer : Option A
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Indian Economy on the Eve of Independence Prepare / Learn

Q8. Indian economy at the time of independence was

A. None

B. Developing economy

C. Developed economy

D. Backward economy

Answer : Option D
Explaination / Solution:

High growth of population, lower level of human development, agricultural dominance, unequal distribution of income and wealth, scarce resources of production, high rate of unemployment, high dependency ratio, lack of entrepreneurs and low level of technology reflect Backward economies at the time of independence.

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

Q9. Order of the photochemical reaction occurring between hydrogen and chlorine is

A. Third order

B. Zero order

C. Second order

D. First order

Answer : Option B
Explaination / Solution:

Photochemical reaction between

H_{2}

and

C l_{2}

is 0 zero wrt to reactants.

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

Q10. In a cumulative percent frequency distribution, the last class will have a cumulative percent frequency equal to

A. Zero

B. 100

C. 100%

D. -1

Answer : Option C
Explaination / Solution:

Cumulative percentage is another way of expressing frequency distribution. It calculates the percentage of the cumulative frequency within each interval, much as relative frequency distribution calculates the percentage of frequency.

The main advantage of cumulative percentage over cumulative frequency as a measure of frequency distribution is that it provides an easier way to compare different sets of data.

Cumulative frequency and cumulative percentage graphs are exactly the same, with the exception of the vertical axis scale. In fact, it is possible to have the two vertical axes, (one for cumulative frequency and another for cumulative percentage), on the same graph.

Cumulative percentage is calculated by dividing the cumulative frequency by the total number of observations (n), then multiplying it by 100 (the last value will always be equal to 100%