Ques 1. Which rays are mainly used to find out invisible hand-writings, forged documents and fingerprints?
(A) Ultraviolet rays
(B) Infrared ways
(C) Beta rays
(D) Gamma rays
Ques 2. The property of a body when it resists any change in its motion in a straight path or at rest, is called __________.
(A) Reaction
(B) Inertia
(C) Capillarity
(D) Viscosity
Ques 3. Which of the following is used to dissolve noble metal?
(A) Nitric Acid
(B) Aqua regia
(C) Sulphuric acid
(D) Hydrochloric acid
Ques 4. Which of the following is known as ‘Devil fish'?
(A) Pila
(B) Sepia
(C) Torpedo
(D) Octopus
Ques 5. Which part of the human body is most affected by typhoid?
(A) Stomach
(B) Renal
(C) Lungs
(D) Intestine
Ques 6. The halogen which is most reactive is __________.
(A) Chlorine
(B) Fluorine
(C) Bromine
(D) Iodine
Ques 7. Which chemical is used for the preservation of foods?
(A) Sodium chloride
(B) Sodium benzoate
(C) Potassium permanganate
(D) Boric acid
Ques 8. Rearing of silk worm for the production of silk is called _______.
(A) Silviculture
(B) Apiculture
(C) Sericulture
(D) Pisciculture
Ques 9. Which part of body is responsible for the production of urea?
(A) Kidney
(B) Spleen
(C) Heart
(D) Liver
Ques 10. For which disease’s treatment radioactive Iodine is used?
(A) Thyroid disease
(B) Blood cancer
(C) Hemophilia
(D) Skin disease
Ques 11. Which chemical substance is present in tobacco?
(A) Morphine
(B) Quinine
(C) Nicotine
(D) Heroine
Ques 12. Which corpuscles are mainly affected in leukemia?
(A) White blood corpuscles
(B) Red blood corpuscles
(C) Blood platelets
(D) Blood plasma
Ques 13. Cyclotron is a device which -------
(A) Provides energy charged particles.
(B) Measures the pollution level of vehicles
(C) Takes a three dimensional picture
(D) Analyzes the amount of water vapour in the atmosphere
Ques 14. “Fleming’s left–hand rule” is used to determine -----
(A) The current flow direction of the magnetic field
(B) The direction of induced current due to impact of magnetic field
(C) The direction of current motion in magnetic field.
(D) None of these
Ques 15. Which part of human head is associated with the beats of lungs and heart?
(A) Spinal cord
(B) Diencephalon
(C) Hypothalamus
(D) Medulla oblongata
