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UPSC Civil services Entrance exams General Studies test # General Science Motion in A Straight Line Prepare / Learn

Q1. Displacement is a

A. Vector

B. tensor

C. Hector

D. scalar

Answer : Option A
Explaination / Solution:

Displacement vector is a vector which gives the position of a point with reference to a point other than the origin of the coordinate system.

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

Q3. Blood plasma proteins :

i. decrease in their level causes excessive absorption of water from tissues into blood.
ii. they maintain osmotic pressure.

A. both are correct

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

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

D. both are wrong

Answer : Option B
Explaination / Solution:

Fibrinogen, globulins and albumins are the major proteins. The albumins help in osmotic balance.

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

Q4. Travelling or progressive wave

A. does not move from one point of the medium to all others

B. does not move from one point of the medium to another

C. travels from one point of the medium to another

D. does not move from one point of the medium to any other

Answer : Option C
Explaination / Solution:

As progressive wave means a wave propagating in some onward direction in the medium

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

Q5. The alternate forms of a gene is called

A. Recessive character

B. Alleles

C. Dominant character

D. Alternate gene

Answer : Option B
Explaination / Solution:

The alternate forms of a gene are called alleles. Each trait is controlled by a pair of alleles.

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

Q6.

Respiratory Quotient for the reaction $C_{57} H_{107} O_{6} + 80 O_{2} . . . . . . . . . . \to 57 C O_{2} + 52 H_{2} O$

C_{57} H_{107} O_{6} + 80 O_{2} . . . . . . . . . . \to 57 C O_{2} + 52 H_{2} O

A. 0.071

B. 0.71

C. 1.71

D. 1.7

Answer : Option B
Explaination / Solution:

RQ is equal to number of carbon dioxide molecules produced divided by number of oxygen molecules used during respiration. Here, RQ = 57/80 = 0.71.

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

Q7. The diagonal relationship exists between

A. Lithium and magnesium

B. Lithium and aluminium

C. Lithium and beryllium

D. Beryllium and magnesium

Answer : Option A
Explaination / Solution:

Lithium shows diagonal relationship to Magnisium due to their nearly same polarising power, comparable electronegativities(Li=1.00, Mg=1.20) and small difference in radius (Li=152Pm, Mg=159pm).

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

Q8. Humulin is a

A. Fat

B. Protein

C. Carbohydrates

D. Vitamin

Answer : Option B
Explaination / Solution:

Humulin is protein that contains insulin isophane and insulin regular. It’s a manmade hormone that lowers the blood sugar level in blood.

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

Q9. Which of the following compounds contain all the carbon atoms in the same hybridisation state?

A. CH2 = C = CH2

B. H—C ≡ C—C ≡ C—H

C. CH3—C ≡ C— CH3

D. CH2 = CH—C ≡ CH