Multiple Choice Question on Basic Concept of Science Class X Standard Practice Test 1

Quiz-summary

0 of 21 questions completed

Questions:

This is a mock drill question bank on Basic Concept of Science of Class X standard for those appearing in JE RRB examination. The question bank consists of 21 questions with clock set for 20 minutes. After you finish the test, press Quiz Finish and you will get the answer sheet, your result and its comparison with others. You will also be given remarks containing the explanation about the answer and also about the distracters (other options) to build confidence on the subject. You will also learn techniques to handle distractors because it is known only to person who has the experience of constructing multiple choice questions.
Always remember that the Mock Drill is to understand how your brain works in handling different pressure while undertaking the test. Help these learning to correct your approach.

Results

0 of 21 questions answered correctly

Your time:

You have reached 0 of 0 points, (0)

Average score
Your score

Categories

Not categorized 0%

The Answer Key:

Sr No	Question	Answer	Remarks
1	Combination reactions are those in which	two or more substances reacts to form one produce	Combination reaction is one in which all the substances combines to form one product.
2	Chemical name of the product used for white washing of walls is	Ca(OH)₂	Ca(OH)₂ is an aqueous solution which combines with CO₂ present in the environment dries to form CaCO₃
3	Higher pH is an indication of higher	OH ion concentration	pH scale is from 0 to 14 and middle value is neutral. Lower on the scale is increasing concentration of Hydrogen ion and increasing is OH ion concentration
4	The process in which Hydrogen is passed over CuO and CU + H₂O are formed is called	redox	In this process oxidation and reduction both are taking place where hydrogen is oxidised and CuO is reduced.
5	Calcination is a process used in extraction of metal from its ore in which	ore is heated strongly in the presence of excess air	The process of calcination is used for extracting metals which are middle in the activity series. It required strong heating with excess air for roasting and limited air for calcination.
6	Saturated hydrocarbons are also called as	alkanes
7	The formula is of functional group	aldehyde
8	Maximum number of electrons that can be accomodated in a shell depends on the formula	2n²	The shells are K =[ 2(1)²]=2; L = [ 2(2)²]=8; M=[ 2(3)²]=18; N=[ 2(4)²]=32 etc.
9	Which of the following is not a part of the female reporductive system in human beings	vas deferens
10	The normal blood pressure is	120/80
11	What is coranary artries?	it supplies blood to heart muscles
12	The xylem in plants are responsible for	transport of water
13	Spherical mirrors having reflecting surface curved outwards is called	convex mirror
14	You need concave lens to correct the eye vision	for myopia
15	Why is the danger signal colour is red?	the red colour of the white light scatters the minimum	The wavelength of blue colour is minimum whereas that of red colour is maximum. For this reason, it is the blue light which scatters most and red color the least by fog and smoke, and can be seen of same colour from distance.
16	Electrical energy is the most preferred mode of energy because it is	all
17	Resistivity of wire depends directly on the	always constant	Resistivity is the property of the material and remains constant and is calculated by ρ=R*A/l
18	The iron filings near a magnet will align	parallel to the magnetic field
19	The phenomenon of electromagnetic induction discovered by Faraday relates to that	relative motion between a coil and magnetic field produces current in the coil a	Electromagnetic induction is a result of relative motion. AC produces varying magnetic field which induces emf in the nearby coil.
20	Which one is not a necessary requirement while planning a thermal power plant?	it should be near electrical load	It is not necessary to locate the power plant near load as it is reasonably OK to transport electricity as compared to transportation of coal and water which are required continuously and effect economy of power generation.
21	During fission process while harnessing energy for peaceful purpose, the mass of the radio-active heavy elements undergoes changes that	it reduces	The reduction of mass is converted into electrical energy by the equation E=∆m*c²; and as the speed of light is very high, loss of one unit of atomic mass produces 931 MeV of energy where 1eV=1.602×10^(-19)

….let's share our railways knowledge

Multiple Choice Question on Basic Concept of Science Class X Standard Practice Test 1

Quiz-summary

Information

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question

7. Question

8. Question

9. Question

10. Question

11. Question

12. Question

13. Question

14. Question

15. Question

16. Question

17. Question

18. Question

19. Question

20. Question

21. Question

You may also like:

Post a Reply to PINAKI MOHAN SUTRADHAR Cancel Comment

There is 1 Comment

Search RailElectrica

Connect with us on Google

Recent Pages