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

UPSC Civil services Entrance exams General Studies test # General Science Ray Optics and Optical Instruments Prepare / Learn

Q1. A bird flies down vertically towards a water surface. To a fish inside the water, vertically below the bird, the bird will appear to

A. move faster than its actual speed

B. be closer than its actual distance

C. be at its actual distance

D. move slower than its actual speed

Answer : Option A
Explaination / Solution:
No Explaination.

UPSC Civil services Entrance exams General Studies test # General Science Human Health and Disease Prepare / Learn

Q2. Marijuana, hashish, charas and ganga are group of drugs collectively called

A. Coke

B. Opioids

C. Cannabinoids

D. Crack

Answer : Option C
Explaination / Solution:

A cannabinoid is one of a class of diverse chemical compounds that acts on cannabinoid receptors in cells that alter neurotransmitter release in the brain. Marijuana, hashish, charas and ganga contain chemicals called cannabinoids. They are generally, taken as inhalation or oral ingestion to effects cardiovascular system of the body.

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

Q3. What to produce also deal with what quantities to produce.

A. No

B. Can’t say

C. May be

D. Yes

Answer : Option D
Explaination / Solution:

The quantity in which a commodity is to be produced is set at that level where demand equals supply. If quality produced is more or less, then there will be dis equilibrium in the market and price will fluctuate. Hence, to maintain stable equilibrium price it becomes necessary to make demand and supply equal.

UPSC Civil services Entrance exams General Studies test # General Science Neural Control and Coordination Prepare / Learn

Q4. Read the following about neurohypophysis : i. Neurohypophysis secretes neurohormones. ii. Oxytocin and ADH are synthesized in neurohypophysis

A. Statement ii) is correct and i) is wrong.

B. Statement ii) is wrong and i) is correct.

C. both are wrong

D. both are correct

Answer : Option B
Explaination / Solution:

Neurohyphysis secretes neurohormones, which is a posterior gland, itself is a neural projection from hypothalamus. Neurohypophyis secretes vasopressin and oxytocin hormone.

UPSC Civil services Entrance exams General Studies test # General Science Structure of Atom Prepare / Learn

Q5.

The electronic configuration $1 s^{2} 2 s^{2} 2 p^{1}$ belongs to

A. Boron

B. Beryllium

C. lithium

D. carbon

Answer : Option A
Explaination / Solution:

Boron is a chemical element with symbol B and atomic number 5. So electronic configuration of boron is

1 s^{2} 2 s^{2} 2 p^{1}

UPSC Civil services Entrance exams General Studies test # General Science Producer Behaviour and Supply Prepare / Learn

Q6. TVC curve starts from origin as

A. TVC is vertical curve from origin

B. TVC is horizontal

C. TVC is zero at zero level of output

D. TVC slopes upward from the origin at higher level of output

Answer : Option C
Explaination / Solution:
No Explaination.

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

Q7. The triple points of carbon dioxide is 216.55 K. Express this temperatures on the Celsius and Fahrenheit scales

A. – 66.60

^{\circ}

C = – 99.88

^{\circ}

B. – 56.60

^{\circ}

C = – 69.88

^{\circ}

C. – 76.60

^{\circ}

C = – 120.88

^{\circ}

D. – 86.60

^{\circ}

C = – 150.88

^{\circ}

Answer : Option B
Explaination / Solution:

$\begin{aligned} \frac{T_{C} - 0}{100 - 0} = \frac{T_{F} - 32}{212 - 32} = \frac{T_{K} - 273.15}{373.15 - 273.15} \\ \frac{T_{C}}{100} = \frac{T_{F} - 32}{180} = \frac{T_{K} - 273.15}{100} \end{aligned}$

TK = 216.55K

after solving

TC = – 56.60 $^{\circ}$ C

TF = – 69.88 $^{\circ}$ F

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

Q8. Which of these atmospheric pollutants is not released by car exhausts ?

A. Carbon dioxide

B. Lead oxide

C. Carbon monoxide

D. Magnesium oxide

Answer : Option D
Explaination / Solution:

Magnesium oxide is not released by car exhaust because Mg is not present in the fuels.

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

Q9. The production of oxidation of

I^{-}

with

M n {O_{4}}^{-} -

in acidic medium is

I O^{-} -

I {O_{3}}^{-} -

I_{2}

I {O_{4}}^{-} -

Answer : Option C
Explaination / Solution:

In acidic medium

I^{-}

oxidizes to

I_{2}

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

Q10. Study of price and demand eliminating supply side

A. Total correlation

B. Partial correlation

C. None

D. Both

Answer : Option B
Explaination / Solution:

Partial correlation measures the degree of association between two random variables while controlling or eliminating the effect of one or more other variables.