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RRB ALP/ Technician Science Quiz: Part IV

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Question 1

Who invented the contact lens?

Question 2

Blood pressure is measured by _______.

Question 3

Which type of frictional force is exerted between two surfaces in relative motion?

Question 4

The first picture of a pinhole camera obscura is a drawn by?

Question 5

__________ is the mechanical transfer of energy to a system or from a system by an external force on it.

Question 6

A p-type and n-type semiconductor can be obtained by doping pure silicon with ______.

Question 7

The unit of which physical quantity is not pascal?

Question 8

Which physical quantity is measured in 'siemens'?

Question 9

The behavior of water around 4˙C Temperature is called as ______ expansion.

Question 10

In a projectile motion, the horizontal range achieved is same whether the body is projected at theta and ___________.

Question 11

Who invented Helicopter?

Question 12

Venn diagram was invented by

Question 13

Cadmium pollution is associated with which of the following?

Question 14

The device used for the detection and measurement of all types of radiations (alpha, beta and gamma) is:

Question 15

Which law of thermodynamics states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another?

Question 16

How much energy is required by each coulomb of charge passing through a 10 V battery?

Question 17

The poisonous gas accidentally released in Bhopal Gas Tragedy is

Question 18

For what is Radiocarbon dating technique used?

Question 19

Which among the following is not a characteristic of oxidation reaction?

Question 20

Automobile exhaust leads to a poisonous pollutant
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