61) Cavity in teeth means:
(A) Black on teeth
(B) Hole in teeth
(C) Brace on teeth
(D) None of above
62) Printing press was invented by:
(A) Boer
(B) Mosley
(C) Gutenberg
(D) None of above
63) SI unit of pressure is:
(A) Henry
(B) Pascal
(C) Volt
(D) Erg
64) A camera uses a ______to term an Image:
(A) Concave lens
(B) Cylindrical lens
(C) Convex lens
(D) None of above
65) GPS is an observation for:
(A) Global positioning system
(B) Global poles system
(C) Global positioning structure
(D) None of above
66) Which is the largest gland of human body?
(A) Liver
(B) Pineal
(C) Pancreas
(D) None of above
67) Deficiency of vitamin C causes _________disease.
(A) Teeth
(B) Stomach
(C) Skin
(D) None of above
68) Honey contains:
(A) Sulphate
(B) Carbon
(C) Fructose
(D) Sugar
69) How many water percentage is contained by raw milk?
(A) 40%
(B) 80%
(C) 70%
(D) 60%
70) Lactometer is used to measure the purity of:
(A) Honey
(B) Juice
(C) Milk
(D) None of above