BAF Shaheen College Dhaka Practice Half Yearly Examination 2020
Class- VII (English Version) Subject: Science (MCQ)
Time: 30 min Full marks-30
1. Which bacteria is responsible for pneumonia?
a) coccus b)bacillus c) comma d)spirillum 2. Which one is used in making Icecream?
a) virus b)bacteria c)fungi d)algae 3. Which disease is caused by virus?
a) influenza b) measles c) pox d)all of the above 4. What is the shape of the bacteria that causes cholera?
a)rod b)stick c)comma d)colon
5. To which agaricus belong?
a)fungi b)virus c) bacteria d) algae 6. Which micro organism is used to prepare vitamin tablet?
a) yeast b)agaricus c) ricketsia d)spirogyra 7. The way fungi reproduces-
i) sporing ii) budding iii) cell division
a) I & ii b) ii & iii c) I & iii d) I, ii & iii 8. Which one is absent in meristematic cell?
a) cell wall b)nucleus c) cell vacuole d) cellolose 9. The cell vacuole contains :
i) organic acid and salt ii) protein and carbohydrate iii) organic and inorganic acid Which one is correct?
a) I & ii b) I & iii c) ii & iii d) I, ii & iii 10. Which one is absent in animal cell?
a) cell wall b) vacuole c) lysosome d) centriole 11. Which one is the example of Rhizome?
a) turmeric b) paddy c)mustard d)rose 12. Which one has the aerial root?
a) banana b) jackfruit c)mango d) orchid 13. Which one has the reproductive leaf?
a) bryophyllum b) durba c) black berry d) mango
14. In which plant moniliform roots are found?
a) dahlia b)mango ginger c) sweet potato d) bitter gourd 15. Characteristics of rhizomes are:
i) Definite node and internode
ii) Nodes and internodes are compressed iii) Stay in horizontal position under the soil Which one is correct?
a) I & ii b) ii & iii c)I & iii d) I, ii & iii 16. Which one is an element?
a) Na b) CO c)KCl d)No
17. Which one is the symbol of Beryllium?
a) Br b) Bi c)B d)Be
18. Which one is the formula of potassium iodide?
a) Kd b)KI c)Ko d)PI
19. Who gave the smallest particle theory?
a) Aristotle b)Bacon c)Newton d)John Dalton 20. How many elements are there?
a) 120 b)118 c)114 d)90
21. How many neutrons are there in an oxygen atom?
a) 5 b) 6 c) 7 d)8
22. Which one is symbol of Iron?
a)I b)F c)Fe d)St
23. What type of energy we get from food?
a) Chemical b) mechanical c) electrical d) atomic 24. Which one is the source of non- renewable energy?
a) Oil b) air flow c) sunlight d) water flow 25. What is the unit of energy?
a) watt b)Joule c)Newton d) m/s 26. Which one is attracted by a magnet?
a)copper b) bran c)glass d)Iron 27. Electrical energy is converted into mechanical energy in which device?
a) wheel b) fan c)scissors d)cycle 28. What is the origin of sound?
a) vibration b) heating c) atom d) light 29. What is the velocity of sound in Aluminium?
a) 6420m/s b) 2420 m/s c)4112 m/s d) 2928 m/s 30. What is the audibility range of Human being?
a) 20- 20000 Hz b) 25000- 30000 Hz c) 30000-40000 Hz d)45000- 50000Hz
