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RRB JE 2019 | Day 84 | General Science + Quant Revision Quiz 24

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Question 1

PET is a very familiar form of _____________. It is used for making bottles.

Question 2

Who invented the Submersible?

Question 3

Who among the following discovered the Prime Numbers?

Question 4

Who is the author of the book ‘Cyber Pathshala’?

Question 5

Who invented first working laser?

Question 6

What is the full form of ROM?

Question 7

What is the formulation of Nickel Silver?

Question 8

The proportion of acid and water in the three samples is 2 : 1, 3 : 2 and 5 : 3. A mixture containing equal quantities of all three samples is made. The ratio of acid and water in the mixture is

Question 9

The value of (tan 350 tan 450 tan 550) is

Question 10

What is the largest four digit number which is a perfect square?

Question 11

The red blood cells in a blood sample grows by 10% per hour in first two hours decreases by 10% in next one hour, remains constant in next one hour and again increases by 5% per hour in next two hours. If the original two hours. if the original count of the red blood cells in the sample is 40000, find the approximate red blood cell count at the end of 6 hours.

Question 12

A boat can row 35 km upstream in 7 hours and the same distance downstream in 5 hours. What is the speed (in km/hr) of the boat in still water?

Question 13

If length of a rectangle is increased by 10% and breadth is increased by 15%, then what will be the percentage increase in the area of rectangle?

Question 14

The total age of A, B and C five years hence will be 99 years. Find the age of C four years hence if the present age of A and B is 32 years and 23 years respectively.

Question 15

Mr. Karan owned a flat for Rs. 52.8 Lacs. Further, He spends 20% of his monthly salary on its paintings. 25% on lighting, 15% on furniture. If Mr. Karan’s annual salary is 21.6 lacs, then find least number of years he should have worked for in order to afford such spending.
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Mar 13ESE & GATE EE