476: Aluminium surfaces are often anodized. This means the deposition of a layer of
(a) chromium oxide
(b) aluminium oxide
(c) nickel oxide
(d) zinc oxide
477: On a railway route between two places A and B, there are 10 stations on the way. If 4 new stations are to be added, how many types of new tickets will be required if each ticket is issued for a one way journey?
(A) 108
(B) 14
(C) 96
(D) 48
478: Punjab and Haryana receive rainfall from:
(a) Westerly disturbances
(b) Cyclones in Bay of Bengal
(c) Both of the above
(d) None of the above
479: Match List-I (Distinguished Ladies) with List-II (Area of Work) and select the correct answer using the codes given below the Lists:
List-I List-II
(Distinguished Ladies) (Area of Work)
A. Jhumpa Lahiri 1. Science and environment
B. Sunita Narain 2. Novel-writing
C. Naina Lal Kidwai 3. Film industry
D. Ravina Raj Kohli 4. Banking
5. Television media
Codes :
A B C D
(a) 4 5 3 1
(b) 2 1 4 5
(c) 4 1 3 5
(d) 2 5 4 1
480: Variations in the length of daytime and night time from season to season are due to
(a) the earth's rotation on its axis
(b) the earth's revolution round the sun in an elliptical manner
(c) latitudinal position of the place
(d) revolution of the earth on a tilted axis