IIT Ashram KHOJ Science Aptitude Test Class VIII Sample Questions Paper 2018
Name of the Organization : IIT Ashram
Name of the Examination : KHOJ Science Aptitude Test – 2018
Document Type : Sample Questions Paper
Class : VIII Std
Website : https://www.iitashram.com/khoj.php
KHOJ Science Aptitude Test Class VIII Sample Questions Paper
Download Question Paper of KHOJ Science Aptitude Test Sample Questions Paper Class VIII is now available in the official website of IIT Ashram.
Related : IIT Ashram KHOJ Science Aptitude Test Class VII Sample Questions Paper : www.pdfquestion.in/32986.html
Instructions
Please read the instructions carefully. You are allotted 5 minutes specifically for this purpose.
A. General :
1. This booklet consists of 60 questions.
2. Blank papers, clipboards, log tables, slide rules, calculators, cellular phones, and electronic gadgets in any form are not allowed to be carried inside the examination hall.
3. The answer sheet, a machine–readable Optical Mark Recognition (OMR), is provided separately.
4. Do not tamper with / mutilate the OMR or the Booklet.
5. Write Name and Address in capital letters on OMR sheet.
6. Submit the OMR Sheet back to Invigilator after examination before leaving the examination hall.
7. Previous year or Term exam’s percentage | grade | Marks scored in Maths and Science must be written at the back of OMR Sheet
B. Question Paper Format :
8. The question paper consists of 2 Parts.
(I) Part – I : Mental Ability & Mathematics (30 Questions)
(II) Part – II : Physics , Chemistry & Biology (30 Questions)
C. Marking Scheme :
9. For each question in Part I and II you will be awarded 4 marks if you have darkened only the bubble corresponding to the correct answer and zero mark if no bubble is darkened. In all other cases where the answer marked is not correct, minus one (–1) mark will be awarded.
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Sample Questions
Part – I
Directions for questions 1-4 :
In a class of 150 students, 85 students passed in Maths, 95 students passed in English and 120 passed in Marathi. 65 students passed in both Maths & English, 60 passed in both Maths & Marathi and 70 passed in both English & Marathi. 50 passed in English, Marathi & Maths.
1. How many students passed only in Maths?
(a) 10
(b) 30
(c) 20
(d) 40
2. How many passed only in Marathi?
(a) 50
(b) 55
(c) 60
(d) 40
3. How many students passed in both Marathi and English but not in Maths?
(a) 20
(b) 40
(c) 30
(d) 50
4. How many students passed in both Maths & English but not in Marathi?
(a) 30
(b) 15
(c) 25
(d) 20
5. Which was the day on 23rd January 1985?
(a) Monday
(b) Tuesday
(c) Wednesday
(d) none of these
7. Which number is the odd one out? 9678, 4572, 5261, 5133, 3527, 6895, 7768
(a) 4572
(b) 5133
(c) 7768
(d) 3527
8. Isotherm is to temperature as isobar is to :
(a) Atmosphere
(b) Wind
(c) Pressure
(d) Latitude
10.In a joint family, an old farmer has four sons. Among four sons each son has two sons and two daughters. The old farmer and her daughtersin- law are also in the family. How many members are there in the family?
(a) 20
(b) 26
(c) 25
(d) 16
11.The salaries of A, B and C are in the ratio 2 : 3 : 5. If the increments of 15%, 10% and 20% are given respectively in their salaries, then be what will the new ratio of their salaries?
(a) 3 : 3 : 10
(b) 10 : 11 : 20
(c) 23 : 33 : 60
(d) Cannot be determined
12. A rhombus OABC is drawn inside a circle whose centre is at O in such a way that the vertices A, B and C of the rhombus are on the c i r c l e . I f t h e a r e a o f t h e r h o m b u s , i s 3 2 3 m2, then the radius of the circle is :
(a) 64 m
(b) 8 m
(c) 32 m
(d) 46 m
13. If (3x – 4) (5x + 7) = 15×2 – ax – 28 then a = ____
(a) 1
(b) – 1
(c) – 2
(d) none of these
14. If (a + b) : (b + c) : (c + a) = 6 : 7 : 8 and (a + b + c) = 14, then the value of c is :
(a) 6
(b) 7
(c) 8
(d) 14
Part – II
1. Green house effect is caused by which gas?
(a) O2
(b) CO2
(c) N2
(d)H2O
2. If a solid object is taken into space, which of the following measurements of the object will change most?
(a) Density
(b) Mass
(c) Volume
(d) Weight
3. A current carrying coil of an insulated wire wrapped around a piece of iron is called?
(a) Magnet
(b) Electric circuit
(c) Electromagnet
(d) None
4.We can cover the jewellery made of less expensive metals, with layer of gold or silver, by ____.
(a) Electroplating
(b) Earthing
(c) Charging
(d) Simply dipping in gold solution.
5. In winter why do you rub your hands to keep them warm ?
(a) Your hands do not actually become warmer when you rub them. The effect is purely psychological.
(b) In cold climates, your blood does not flow very well. Rubbing pushes blood into your fingers and the warm blood keeps the hands warm.
(c) The exercise of rubbing your hands vigorously produces heat which keeps the hands warm.
(d) Friction between your hands produces heat and keeps them warm.
6. Some whistles are designed to produce waves that can attract the attention of dogs but humans do not notice these waves. What kind of waves are these?
(a) These are normal sounds waves whose frequency is less than 20 Hz. Humans cannot hear them because these waves have frequencies below the audible range.
(b) These are normal sounds waves whose frequency is more than 20,000 Hz. Humans cannot hear them because these waves have frequencies above the audible range.
(c) These are electromagnetic waves.
(d) These are supersonic sound waves.
7. You wake up inside a small transparent capsule sitting on the surface of Venus. From a small speaker you hear a voice that says, “We will leave you here either for a Venus day or a Venus year. If you choose to stay a day, we will give you Rs.1 crore. If you choose to stay a year, we will give you Rs.2 crore. Either way, you will have sufficient food and water. We will make sure the temperature is comfortable and we will also supply cable TV. What is your choice?
(a) 1 day. I need to go back to school tomorrow.
(b) 1 day. I’m not greedy.
(c) 1 year. A Venus year is shorter than a Venus day.
(d) 1 Year. It will take longer but I will make more money!!!
8. The intensity of earthquakes is measured on
(a) the Richter scale
(b) the Celsius scale
(c) the Beaufort scale
(d) the Fahrenheit Scale
9. A thermometer which has upper and lower point equal to 950 and 50 reads 590. What is the temperature in celsius scale?
(a) 600 C
(b) 500 C
(c) 400 C
(d) 1000 C
10.A car travels with a speed of 50 km/h for 2 hours and 100 km/h for 1 hour. What is its average speed?
(a) 75 km/h
(b) 33.37 km/h
(c) 66.67 km/h
(d) 150 km/h
11.The formula in which valency of metal is equal to the valency of non metal.
(a) AlCl3
(b) Na2O
(c) MgS
(d) Mg3N2
12.Valency of an element ‘R’ is 2 with respect to hydrogen. Then the formula of its chloride and oxide is
(a) RCl, RO
(b) RCl2 RO2
(c) RCl2, RO
(d) RO2, RCl
13.In the gaseous state, the particles can move
(a) only in one direction
(b) only in the fixed path
(c) randomly in all directions
(d) upwards and downwards only
14.When bitten by an ant, the sting causes irritation due to the presence of
(a) a base in the sting
(b) formic acid in the sting
(c) poisonous chemicals
(d) both (a) and (b)
15. The gas obtained by heating sulphur powder in air is dissolved in water and the resulting solution is reacted with litmus solution. Then we will observe
(a) Litmus solution changes colour from red to blue
(b) Litmus solution changes colour from blue to red
(c) Litmus solution shows purple colour
(d) No effect, as gas is not soluble in water
16. Which of the following is not a compound?
(a) Sugar
(b) Common Salt
(c) Diamond
(d) Plaster of Paris
17. The number of metals which exist as gas is/are _______.
(a) one
(b) two
(c) three
(d) none
18.Which of the following is not a physical property?
(a) Specific heat
(b) Melting point
(c) Reaction with other elements or compounds
(d) Freezing point
19.Terrycot fibre is made using :
(a) wood pulp
(b) esters
(c) acrylic
(d) paper pulp
20.An animal that migrates great distance would obtain the greatest benefit from storing its energy as _____ .
(a) protein
(b) Carbohydrate
(c) Fat
(d) Amino acid