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Questions & Answers for Class 9-10, October-2012

1) The science concerned with maintaining health and restoring it by treating disease
a. Mycology
b. Medicine
c. Obstetrics
d. Ontology
The correct answer is : Medicine
2) A compound statement which contains only T in the last column of its truth table, then it is called
a. Singleton
b. Closed sentence
c. Open sentence
d. Tautology
The correct answer is : Tautology
3) What should be kept in mind while writing an Algorithm?
a. Economic use of time
b. Simple and solution orientation
c. Universal adaptability
d. All of the above
The correct answer is : All of the above
4) Rate of electrical work done is defined as
a. Magnetic power
b. Static power
c. Electric power
d. Man power
The correct answer is : Electric power
5) The growth hormone, prolactin, Oxytocin and vasopressin hormones secreted by
a. Kidney
b. Pituitary
c. Thyroid
d. Pancreas
The correct answer is : Pituitary
6) 2012 Olympics Men's 100m gold medal record time set by Bolt usain is
a. 9.58 Sec
b. 9.63 sec
c. 9.75 Sec
d. 9.79 sec
The correct answer is : 9.63 sec
7) The branch of medicine dealing with the applications of radiant energy, including x-rays and radioisotopes
a. Telepathy
b. Petrology
c. Radiology
d. Dermatology
The correct answer is : Radiology
8) If A and B are disjoint sets, then n(A U B) =
a. n(A) U n(B)
b. n(A) - n(B)
c. n (AB)
d. n(A/B)
The correct answer is : n(A) U n(B)
9) The range of the data 21, 36, 24, 33, 39, 37, 12, 5, 2 is
a. 35
b. 36
c. 37
d. 38
The correct answer is : 37
10) The value of a Bit is
a. 0 only
b. 1 only
c. 0 or 1
d. 1 or 2
The correct answer is : 0 or 1
11) Which of the following is rule to be followed while giving first aid to save human life?
a. Treat for breathing
b. Make efforts to stop bleeding
c. Don't allow people to crowd around the victim
d. All of the above
The correct answer is : All of the above
12) 2012 Olympics Men's 20 Km walk gold medal record time set by Chen Ding is
a. 01:19:25
b. 01:17:16
c. 01:18:46
d. 01:20:21
The correct answer is : 01:18:46
13) Choose the correct meaning of the word "Prevalent"
a. Common
b. Occur
c. rare
d. Hidden
The correct answer is : Common
14) The symbol for the Existential quantifier is
a. A
b. ∃
c. Ε
d. Ш
The correct answer is : ∃
15) A diagrammatic representation to solve the problem is
a. Bar Graph
b. Flow chart
c. Political map
d. Matrix
The correct answer is : Flow chart
16) Find the application of laser in the field of Medicine.
a. Used for bloodless surgery
b. Liver and Lung diseases could be treated
c. Treatment of eye diseases
d. All of the above
The correct answer is : All of the above
17) Which of the following is related to Lungs?
a. Cloacae
b. Cortex
c. Bronchioles
d. Testis
The correct answer is : Bronchioles
18) In which sport India won Silver medal in Olympics 2012 by the army man Vijay Kumar?
a. Men's 50m Pistol
b. 25 m Rapid Fire Pistol
c. Men's 50m Rifle 3 Positions
d. Men's Double Trap
The correct answer is : 25 m Rapid Fire Pistol
19) Choose the correct meaning of the word "renounce"
a. abolish
b. abandon
c. erase
d. eliminate
The correct answer is : abandon
20) The number of truth values
a. 1
b. 2
c. 3
d. 4
The correct answer is : 2
21) If the mean of 8 observations is 10 and the mean of 12 observations is 15, then the mean of total observations is
a. 11
b. 12
c. 13
d. 14
The correct answer is : 13
22) Which is the characteristic of a good quality face-power?
a. Opacity
b. Ease of distribution
c. power of absorbing oil and sweat
d. All of the above
The correct answer is : All of the above
23) The supreme power in India rests with
a. Prime Minister
b. Supreme court
c. The people
d. Parliament
The correct answer is : Parliament
24) Who is the coach to Olympic 2012 bronze medal winner Saina Nehwal?
a. Parupalli Kashyap
b. Prakash Padukone
c. Pullela Gopichand
d.  Jwala Gutta
The correct answer is : Prakash Padukone
25) Find the meaning of the bold and underlined word in "Our team was no longer obscure we had won the championship"
a. divided
b. unnoticed
c. unauthorized
d. Well known
The correct answer is : unnoticed
26) If A = {1,2}, then n(A X A) =
a. 1
b. 2
c. 3
d. 4
The correct answer is : 4
27) Which of the following are similar?
a. All the regular polygons
b. All Trapeziums
c. All right angled triangles
d. All squares
The correct answer is : All Trapeziums
28) Which period in the periodic table is incomplete?
a. 4th
b. 5th
c. 6th
d. 7th
The correct answer is : 7th
29) Indian constitution came into force
a. 1947
b. 1950
c. 1952
d. 1956
The correct answer is : 1950
30) How much a Olympics 2012 winner receive cash award along with medal at London?
a. $1.2 million 
b. $250,000 
c. Rs. 1 Crore
d. No cash award
The correct answer is : No cash award
31) Find the wrongly spelt word in the set
a. hurry
b. bury
c. scury
d. curry
The correct answer is : scury
32) If f is a function from A to B, then f is a subset of
a. A X A
b. A X B
c. f(a)
d. B X A
The correct answer is : A X B
33) Which of the following is related to Orbital?
a. This is two dimensional
b. This is three dimensional
c. Principal quantum number
d. It is circular
The correct answer is : This is three dimensional
34) Which is not a type of malnutrition in children?
a. Protein malnutrition
b. Fat malnutrition
c. Calorie malnutrition
d. Protein calorie malnutrition
The correct answer is : Fat malnutrition
35) Which of the following is not an important problem of Indian economy?
a. Poverty
b. Unemployment
c. New colleges
d. Inflation
The correct answer is : New colleges
36) Identify the part of speech of bold and underlined word in "They quickly agreed to my suggestion"
a. pronoun
b. adverb
c. preposition
d. adjective
The correct answer is : adverb
37) In a Linear programming, the function f = ax + by is called
a. Floor function
b. Hyperbolic function
c. Objective function
d. Quadratic function
The correct answer is : Objective function
38) Which of the following is an inert gas?
a. Oxygen
b. Hydrogen
c. Helium
d. Carbon di oxide
The correct answer is : Helium
39) The source of Vitamin C is
a. Eggs
b. Outer layers of food grains
c. Germinating pulses
d. Whole grain cereals
The correct answer is : Germinating pulses
40) Rewrite the sentence as close in meaning as possible for "The glasses broke because you were careless".
a. If you were careless, the glasses will broke
b. If you were not careless, the glasses are not broken
c. If you were not careless, the glasses would not have been broken
d. None of the above
The correct answer is : If you were not careless, the glasses would not have been broken
41) Sum of first 100 natural numbers is equal to
a. 4050
b. 5050
c. 6050
d. 4565
The correct answer is : 5050
42) The force which acts at right angles to the motion of the body and causes it to move in a circular path is called
a. Magnitic force
b. Centripetal force
c. Centrifugal force
d. All of the above
The correct answer is : Centripetal force
43) Which of the following is a symptom of a fracture?
a. Pain at the site of fracture
b. Tender to touch and can't bear even small pressure
c. Swelling appears at the site
d. All of the above
The correct answer is : All of the above
44) Find the word that rhymes with the word "Birth"
a. Worth
b. growth
c. mouth
d. fifth
The correct answer is : Worth
45) Which is not the characteristic of a computer?
a. A computer can perform Arithmetic and logical operations
b. It can store a large amount of information
c. It can't obey the instructions most obediently
d. A computer can perform calculations with high speed and accuracy, and they do not get tired.
The correct answer is : It can't obey the instructions most obediently
46) Example for Paramagnetic substance is
a. Alcohol
b. Cobalt
c. Water
d. Salt solution of manganese
The correct answer is : Salt solution of manganese
47) Which of the following is the affect of Flurosis?
a. Teeth become yellow and bone deformations are seen
b. People can't stand erect and walk properly
c. Complete blindness and can't see
d. Above 1 and 2 only
The correct answer is : Above 1 and 2 only
48) Choose the corrected sentence for " I am not understanding why there is no average raining this year"
a. I was not understanding why there is no average raining this year
b. I do not understand why there is no average raining this year
c. I am not understand why there is no average rain this year
d. None of the above
The correct answer is : I do not understand why there is no average raining this year
49) Which of the following is used as decision box in a flow chart?
a. Rhombus
b. Ellipse
c. Square
d. Circle
The correct answer is : Rhombus
50) The pitch scale, Head scale , Hollow cylinder and Milled head are the parts of
a. Vernier Calipers 
b. Screw gauge
c. Car jack
d. Pendulum
The correct answer is : Screw gauge
Answers
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26)d27)b28)d29)b30)d31)c32)b33)b34)b35)c36)b37)c38)c39)c40)c41)b42)b43)d44)a45)c46)d47)d48)b49)a50)b