When a metal is heated, its density?
(A) increases
(B) There is no difference
(C) decreases
(D) None of the above
By which device is the purity of milk measured?
(A) manometer
(B) Hydrometer
(C) Lactometer
(D) Fadometer
Who invented television?
(A) J.R. L. Baird
(B) Macmillan
(C) James Watt
(D) None of these
What are the main colors in photography?
(A) Red, Blue, Yellow
(B) Red, Yellow, Green
(C) Blue, Yellow, Green
(D) Red, Blue, Green
Basic scientific principle behind a nuclear reactor is
(A) Nuclear fusion
(B) Controlled nuclear fusion
(C) Uncontrolled nuclear fission
(D) Controlled nuclear fission
Is the father of 'demonstration method'?
(A) John D.V.
(B) Daniel Benor
(C) A.D. B. Graham
(D) Seaman A. Nap
Potato canker has black canker and black pan / colloid factor?
(A) two fungi
(B) A fungus and a bacterium
(C) a fungus
(D) A fungus and a virus
Embryos of Tritium aestivum have a chromosome number?
(A) 44
(B) 63
(C) 65
(D) 67
What causes molybdenum deficiency?
(A) Whip tail in cauliflower
(B) Hot disease in tomato
(C) Lemon yellow yellow stain disease
(D) All these
Nucleopolyhedro virus (NPV) is used in biological control?
(A) For gram bee borer
(B) For paddy-scented bug
(C) For sugarcane pyrilla
(D) For all these
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