55. Galileo’s invention is.
(a) Telescope(b) Military tank(c) Telephone(d) Razor
55. Galileo’s invention is. Read More »
54. Who invented the telephone?
(a) Graham Bell(b) Pascal(c) Spenser(d) Colt
54. Who invented the telephone? Read More »
53. Point out the inventor of frequency.
(a) Bell(b) Marconi(c) Colt(d) Newton
53. Point out the inventor of frequency. Read More »
52. Name the inventor of submarine.
(a) Vail(b) Holland(c) Lake(d) Pascal
52. Name the inventor of submarine. Read More »
51. Who invented rechargeable storage battery?
(a) Gaston Plante(b) Spencer(c) Colt(d) Pascal
51. Who invented rechargeable storage battery? Read More »
50. Who invented the stainless steel?
(a) Walker(b) Edison(c) Brearley(d) None of these
50. Who invented the stainless steel? Read More »
49. Name the inventor of sewing machine?
(a) Tait(b) Howe(c) Goldmark(d) Digital Crop
49. Name the inventor of sewing machine? Read More »
48. Point out the invention of Richter.
(a) Richter scale(b) Lamp(c) Bicycle(d) Razor
48. Point out the invention of Richter. Read More »
47. Inventor of long playing record is:
(a) Berliner(b) Goldmark(c) Colt(d) Spenser
47. Inventor of long playing record is: Read More »
46. Inventor of disc record is:
(a) Jarvik(b) Tait(c) Berliner(d) Edison
46. Inventor of disc record is: Read More »