Science and Scientific Research - General Knowledge Questions and Answers

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(Q1) General Knowledge » Science and Scientific Research

Why are the outermost electrons lost easily down the group?

A

The outermost electrons are farther away from the nucleus  

B

 The innermost electrons are farther away from the nucleus 

C

The elements are inert  

D

The outermost electrons are closest to the nucleus  

(Q2) General Knowledge » Science and Scientific Research

Which technology uses a combination of a large magnet and radio waves to view organs and structures inside our body?

A

Magnetic resonance imaging

B

Positron emission tomography

C

Computed tomography

D

Fluoroscopy

(Q3) General Knowledge » Science and Scientific Research

What is the other name of trap shooting?

A

Pigeon shooting  

B

Clay-pigeon shooting 

C

 Crawl shooting 

D

 Wood-pigeon shooting 

(Q4) General Knowledge » Science and Scientific Research

What is the common name of Parthenium hysterophorus?

A

Lawn grass  

B

 Carrot grass 

C

 Horse grass 

D

 Lemon grass 

(Q5) General Knowledge » Science and Scientific Research

When did Ernest Rutherford publish the results of the gold-foil experiment, which showed that scattering is caused by a rigid, dense core at the centre of the atom - the nucleus?

A

1921 

B

1925 

C

1911 

D

1905 

(Q6) General Knowledge » Science and Scientific Research

In running events who counts the laps?

A

 Time keeper 

B

Lap counter  

C

 Lap recorder 

D

Lap scorer  

(Q7) General Knowledge » Science and Scientific Research

By what method do dry ice, mothballs, iodine crystals and compounds containing zinc turn from solid to gaseous state without becoming a liquid?

A

Melting

B

Vaporisation

C

Condensation

D

Sublimation

(Q8) General Knowledge » Science and Scientific Research

The lifting of an object up and down, the parade of an army and the free fall of a heavy object are all examples of which motion?

A

Oscillatory motion

B

Periodic motion

C

Rectilinear motion

D

Rotational motion

(Q9) General Knowledge » Science and Scientific Research

What is a way in which adaptation does NOT take place?

A

Morphological

B

Behavioural 

C

Physiological

D

Emotional 

(Q10) General Knowledge » Science and Scientific Research

According to the Henry Cavendish experiment conducted in 1797-1798, what was the value of the universal constant of gravity?

A

5.75 × 10-10 N m2/kg2

B

6.75 × 10-11 N m2/kg2

C

7.75 × 10-13 N m2 /kg2

D

3.75 × 10-9 N m2 /kg2

(Q11) General Knowledge » Science and Scientific Research

In 1817, which law of periodicity showed that the atomic weight of phosphorus is the mean of those of nitrogen and arsenic?

A

Mendeleev's Periodic Law

B

Newlands’ Octaves Law

C

Moseley's Periodic Law

D

Dobereiner’s Law of Triads

(Q12) General Knowledge » Science and Scientific Research

In 1820, who found that electric current causes a nearby magnetic needle to move and thus discovered electromagnetism?

A

Benjamin Franklin

B

James Clerk Maxwell

C

Andre-Marie Ampere

D

Hans Christian Oersted

(Q13) General Knowledge » Science and Scientific Research

What does ‘p’ in pH stand for?

A

 Potenz 

B

Potencial   

C

 Pleural  

D

 Potential  

(Q14) General Knowledge » Science and Scientific Research

Which of the following techniques can be used to separate the impurities in Milk?

A

Microscopy

B

Autoclave

C

Microtomy

D

Column chromatography

(Q15) General Knowledge » Science and Scientific Research

In a resistor, what happens to the current when the resistance is doubled?

A

The current gets doubled 

B

The current gets tripled 

C

The current stops 

D

The current gets halved  

(Q16) General Knowledge » Science and Scientific Research

Which is the tallest self-supporting moss species found in New Zealand that usually grows to a height of 60 cm?

A

Polytrichum commune

B

Entodonseductrix

C

Dawsonia superba 

D

Zoopsis nitida

(Q17) General Knowledge » Science and Scientific Research

What kind of adaptation is seen in bacteria when they form various kinds of thick-walled spor

A

 Suspend  

B

Conform   

C

Regulate   

D

 Migrate  

(Q18) General Knowledge » Science and Scientific Research

Identify the method that is NOT used to purify organic compounds.

A

Sublimation 

B

Crystallisation  

C

Sedimentation   

D

Distillation  

(Q19) General Knowledge » Science and Scientific Research

Who was famous for inventing the power battery, one of the first devices to provide a reliable source of electricity, in 1800?

A

Michael Faraday

B

Alessandro Volta

C

Henri Becquerel

D

Luigi Galvani

(Q20) General Knowledge » Science and Scientific Research

Which is the major microtubule-organising centre (MTOC) in eukaryotic cells involved in various cellular processes, including sensory reception, locomotion, and embryogenesis?

A

Vacuoles

B

Plastids

C

Centrosome

D

Lysosomes