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

UPSC Civil services Entrance exams General Studies test # General Science Forms of Market and Price Determination Prepare / Learn

Q1. When a firm’s average revenue are more than its average total cost its profit will be?

A. Supernormal profit

B. None of above

C. No profit

D. Normal profit

Answer : Option A
Explaination / Solution:
No Explaination.

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

Q2. 56 tuning forks are arranged in a series that each fork gives 4 beats/sec, with the previous one. The frequency of last fork is 3 times that of first. Then frequency of first fork is

A. 110 Hz

B. 56 Hz

C. 52 Hz

D. 60 Hz

Answer : Option A
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Botany-Principles of Inheritance and Variation Prepare / Learn

Q3. Whose karyotype is represented below?

A. Female Drosophila

B. Male Drosophila

C. Super female fly

D. Intersex Fly

Answer : Option B
Explaination / Solution:

Karyotype is the representation of chromosome in order of shape and size. Male Drosophila fly have 3 pairs of autosomes and 1 pair (XY) sex chromosome.

UPSC Civil services Entrance exams General Studies test # General Science Microbes in Human Welfare Prepare / Learn

Q4. Organism like Escherichia coli and Chlamydia trachomatis fall into which domain?

A. Eukarya

B. Animalia

C. Archaea

D. Bacteria

Answer : Option D
Explaination / Solution:

Escherichia coli and Chlamydia trachomatis fall into which Bacteria family. Bacteria can live in all kind of environment like air, water and soil including inside the body of plants and animals as parasite.

UPSC Civil services Entrance exams General Studies test # General Science Body Fluids and Circulation Prepare / Learn

Q5.

Match the following:

column A
a) Atherosclerosis
b) Haemorrhage
c) Heparin
d) Polycythemia

column B

i) Hypotension
ii) High blood pressure
iii) Abnormal increase in RBC count
iv) Anticoagulant

A. a)-i, b)-iii, c)-iv, d)-ii

B. a)-ii, b)-i, c)-iv, d)-iii

C. a)-iv, b)-i, c)-ii, d)-iii

D. a)-iii, b)-iv, c)-ii, d)-i

Answer : Option B
Explaination / Solution:

Antherosclerosis leads to high blood pressure, haemorrhage causes hypotension, heparin is used as anticoagulant and polycythemia causes abnormal increase in RBC count.

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

Q6. Suppose that the electric field amplitude of an electromagnetic wave is

E_{0}

= 120 N/C and that its frequency is ν = 50.0 MHz

B_{0}

ω

, k, and

λ

. are

A. 500 nT, 3.3 ×× 108 rad/s, 1.05 rad/m, 6.00 m

B. 450 nT, 3.0 ×× 108 rad/s, 1.05 rad/m, 6.00 m

C. 550 nT, 3.14 ×× 108 rad/s, 1.05 rad/m, 6.00 m

D. 400 nT, 3.14 ×× 108 rad/s, 1.05 rad/m, 6.00 m

Answer : Option D
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Chemical Bonding and Molecular Structure Prepare / Learn

Q7. The hybridization of orbitals of N atom in

{No}_{3}^{-}

{No}_{2}^{+}

and

N {H_{4}}^{+}

are respectively

A. sp, sp2, sp3

B. sp, sp3, sp2

sp2, sp, sp3

D. sp2, sp3, sp

Answer : Option C
Explaination / Solution:

Hybridization of orbitals of N atom in

{No}_{3}^{-}

{No}_{2}^{+}

and

N {H_{4}}^{+}

are

s p^{2}, sp, s p^{3}

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

Q8.

A horizontal straight wire 10 m long extending from east to west is falling with a speed of 5.0 m $s^{- 1}$ , at right angles to the horizontal component of the earth’s magnetic field, $0. 30 \times 10 - 4$ Wb m-2. Instantaneous value of the emf induced in the wire,direction of the emf and end of the wire which is at the higher electrical potential are

1.5 \times 10 - 3 V

, East to West, Eastern end.

B. 1.5×10−3V West to East, Eastern end.

1.5 \times 10 - 3 V

, West to East, Western end.

1.6 \times 10 - 3 V

, West to East, Eastern end.

Answer : Option B
Explaination / Solution:

$e = B v l = 0.3 \times 10^{- 4} \times 5 \times 10 = 1.5 \times 10^{- 3} V$

according to lenz's law direction of emf is West to East

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

Q9. Number of glucose molecule required to produce 38 ATP under anaerobic condition is

A. 38

B. 4

C. 19

D. 2

Answer : Option C
Explaination / Solution:

During anaerobic respiration only two molecules of ATP is produced by each molecules of glucose. So, 19 glucose molecules are required to produce 38 ATP molecules.

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

Q10.

ECOSAN (compost toilets) is about

(i) minimising unnecessary water use
(ii) household and personal hygiene
(iii) maximising recycling and reuse at domestic level of grey water

A. Only (ii)

B. minimising unnecessary water use

C. all of these

D. Only (iii)

Answer : Option C
Explaination / Solution:

Ecological sanitation (Ecosan) is a concept that treats various types of waste generated by us as a resource which can be safely collected, treated and reused to prevent pollution of water bodies and the environment. It minimize unnecessary water use, house hold and personal hygiene and maximizing recycling and reuse at domestic level of grey water.