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RRB JE Mechanical 2014
69

RRB JE Mechanical Question Paper 2014 (Set-1) with Answer Key

69) The atomic number of an element is determined by

the number of electrons in one atom

the number of neutrons in one atom

the valency of the element

the number of protons in one atom

Answer is:

the number of protons in one atom

RRB JE Mechanical Question Paper 2014 (Set-1) with Answer Key

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Related RRB JE Mechanical Question Paper 2014 (Set-1) with Answer Key

70) Elements belonging to the same group have similar chemical properties because

they are all metallic elements

they have similar electronic configuration

atomic number increases on moving down the group

None of these

Answer is:

they have similar electronic configuration

71) Which of the following alloys contains Tin?

Brass

Solder

Duralumin

Steel

Answer is:

Solder

72) In humans, bile juice is secreted by

pancreas

small intestine

esophagus

liver

Answer is:

liver

73) Which of the following is connected with transport of water in plants?

Phloem

Xylem

Epidermis

Cambium

Answer is:

Xylem

RRB JE Mechanical Question Paper 2014 (Set-1) with Answer Key

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