3
Q:

What color does blue and yellow make?

A) Green B) Black
C) Red D) White

Answer:   A) Green



Explanation:

Mixing of blue and yellow colors make Green Color.

                                 400px-Color_mixture.svg_1521793884.png image

 

RYB (an abbreviation of red–yellow–blue) is a historical set of colors used in subtractive color mixing and is one commonly used set of primary colors. It is primarily used in art and design education, particularly painting.

RYB predates modern scientific color theory, which has determined that cyan, magenta, and yellow are the best set of three colorants to combine, for the widest range of high-chroma colors.

Q:

Which instrument is used to measure blood pressure?

 

A) Sphygmomanometer B) Lactometer
C) Thermometer D) Glucometer
 
Answer & Explanation Answer: A) Sphygmomanometer

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Q:

The term ______ is prefixed to scientific terms to describe something that is constant.

 

A) Photo B) Iso
C) Mega D) Quasi
 
Answer & Explanation Answer: B) Iso

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0 76
Q:

1 horsepower = approximately _____ watts.

 

A) 746 B) 764
C) 647 D) 674
 
Answer & Explanation Answer: A) 746

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3 141
Q:

Which law of physics states that the force between the two electric charges reduces to a quarter of its former value when the distance between them is doubled?

 

A) Coulomb’s Law B) Stefan's Law
C) Pascal's Law D) Hooke's Law
 
Answer & Explanation Answer: A) Coulomb’s Law

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Q:

What is the unit of measure of a magnetic field?

A) Cobalt B) Ohm
C) Tesla D) Ampere
 
Answer & Explanation Answer: C) Tesla

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3 212
Q:

_______ expansion makes the Eiffel Tower taller during summers.

 

A) Thermal   B) Chemical  
C) Gravitational   D) Gradient  
 
Answer & Explanation Answer: A) Thermal  

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3 1354
Q:

Georg Simon Ohm in whose honour we have the famous Ohm’s Law, hailed from which country?

 

A) Russia B) Spain
C) Poland D) Germany
 
Answer & Explanation Answer: D) Germany

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1 1418
Q:

Purpose of an optical filter is to

A) reflect lights of different colours B) dispense light into component colours
C) refract light of different colours D) transmit or absorb light of different colours
 
Answer & Explanation Answer: D) transmit or absorb light of different colours

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