416: The internal antenna of a transistor set is made of:
(a) Iron
(b) Ferro-chrome
(c) Copper
(d) Alnico
417: Pearls are formed inside:
(a) Squids
(b) Snails
(c) Oysters
(d) Mollusks
418: Why is it advisable not to draw current for many appliances from a single point?
(a) Current will decrease
(b) Current will increase
(c) Current and voltage both will increase
(d) Voltage will decrease whereas current will increase
419: Which of the following proposals were made by the Cripps Mission?
(i) Participation of Indian States in the Constitution-making body
(ii) Forming separate State for the Muslims
(iii) Election of the Constitution-making body by the members of the lower house of the Provincial Legislature
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (i), (ii) and (iii)
420: Ram and Shyam work on a job together for four days and complete 60% of it. Ram takes leave then and Shyam works for eight more days to complete the job. How long would Ram take to complete the entire job alone?
(a) 6 days
(b) 8 days
(c) 10 days
(d) 11 days