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20 Dec 2016

Solved Question Paper/ Answer Key-I Station Supervisor 18.12.16 A B C D

Q. In how many different ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?
Ans. 720
Q. If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to: 
Ans. 4
Q. Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?
Ans. 3/4 
Q. Two pipes A and B can fill a tank in 15 minutes and 20 minutes respectively. Both the pipes are opened together but after 4 minutes. pipe A is turned off. What is the total time required too fill the tank?
Ans. 14 minutes 40 seconds 
Q. A fort had provision of food for 150 men for 45 days. After 10 days, 25 men left the fort. The number of days for which the remaining food will last, is:
Ans. 42
Q. magnesium ribbon burns with a dazzling white flame and change into a white powder. What is the chemical name of this white powder?
Ans. Magnesium oxide
Q. Metal which does not react with cold water-
Ans. Magnesium 
Q. NaCL has higher melting point due to
Ans. Electrostatic forces of attraction
Q. Dispersion of light by a prism is due to 
Ans. white light is consist of seven colour and all seven colours have different refractive index 
Q. Plants are green in colour because- 
Ans. None

Q. The ultimate cause for the movement of water against the gravity in a tree is-
Ans. transpiration
Q. Among the following, Urea is transported through- 
Ans. Plasma 
Q. Which one is correct according to law of reflection of light?
Ans. angle of incidence is equal to the angle of reflection
Q. The speed of light 

Ans. a
Q. Pick up the word from choices which is close to opposite to word asked:
Ans. frigid
Q. Pick up the word from choices which is close to similar to word asked:
Ans. Invigorate 

For Answer Key Part-II Click here
For Answer Key Part-III Click here
For Answer Key Part-IV Click here