PYQ-2023-24
Q1. A square shaped hole is punched in a metal sheet whose linear thermal expansion coefficient is 1 × 10-3 per °C. The size of the hole will decrease by 10%, when
(A) The sheet is heated by 10 °C
(B) The sheet is heated by 100 °C
(C) The sheet is cooled by 100 °C
(D) The sheet is cooled by 10 °C
Q2. Which among the following has the least thermal conductivity?
(A) metal
(B) semiconductor
(C) superconductor
(D) alloy
Q3. Symbol of material used in conventional glass thermometers is
(A) Mg
(B) Hg
(C) Me
(D) Mn
PYQ-2022-23
Q1. One light year is equivalent to roughly how many kilometers?
(A) 1.5 trillion kilometer
(B) 4.5 trillion kilometer
(C) 7.5 trillion kilometer
(D) 9.5 trillion kilometer
Q2. Jet fuel used in turbine based aviation engine mainly consists of
(A) Petrol
(B) Diesel
(C) Kerosene
(D) CNG
Q3. The light emitting diode (LED) is made of
(A) Si
(B) Ge
(C) GaN
(D) Tungsten
Q4. Meniscus rise in glass thermometer is due to the change in
(A) Density
(B) Mass
(C) Heat capacity
(D) Thermal conductivity
Q5. A glass of (1) tap water, (2) distilled water and (3) sea water is cooled to its solidification. The order in which they will solidify first is
(A) tap water, distilled water, sea water
(B) distilled water, sea water, tap water
(C) sea water, tap water, distilled water
(D) distilled water, tap water, sea water
PYQ-2021-22
Q1. Inflammatory Bowel Disease (IBD) is a group of disorders that cause chronic inflammation in which of the following organs in human body?
(A) Intestines
(B) Brain
(C) Kidney
(D) Pancreas
Q2. Beyond Visual Line of Sight is an experiment, associated with which of the following device?
(A) Naval Ships
(B) Unmanned Aerial Vehicles
(C) Submarines
(D) Anti-tank Missile
93. In ethylene which of the following shape is acquired by the molecule ?
(A) Linear
(B) Tetrahedral
(C) Coplanar triangular
(D) Hectohedral
Q4. Name the new tool that is aimed at matching potential volunteers to new clinical trials:
(A) Country without COVID
(B) World with less COVID
(C) Goal without COVID
(D) World without COVID
Q5. The world's first floating nuclear plant was developed by which of the following country?
(A) Russia
(B) India
(C) China
(D) USA
Q6. Which of the following cause is responsible for production of Radiocarbon in the atmosphere?
(A) Atmosphere lightning discharge in atmosphere
(B) Action of ultraviolet light from the Sun on atmospheric oxygen
(C) Action of solar radiations particularly cosmic rays on carbon dioxide present in the atmosphere
(D) Collision between fast neutrons and nitrogen nuclei present in the atmosphere
Q7. What was the active medium used in the first working laser ever constructed?
(A) Diamond block
(B) Helium-neon gas
(C) Ruby rod
(D) Carbon dioxide gas
Q8. Unicorn' is the name of which space body that was recently discovered at 1,500 light-years away from the Earth?
(A) Exo-plant
(B) Black hole
(C) Asteroid
(D) Satellite
Q9. What is Patania II, which was seen in the news recently, for being stranded on the Pacific Ocean floor?
(A) Container Ship
(B) Submarine
(C) Mining Robot
(D) Satellite module
Q10. Which company has acquired the Signal-rival messaging application Wickr?
(A) Google
(B) Amazon
(C) Microsoft
(D) Apple
PYQ-2015
Q1. Non-conventional source of energy is:
(A) Fossile Fuel
(B) Nuclear energy
(C) Biomass energy
(D) All of the above
Q2. Myopia, also known as near sightedness, can be corrected by use of:
(A) Convex lens
(B) Concave lens
(C) Plane lens
(D) Magnifying lens
Q3. Which of the following is a plant hormone?
(A) Melatonin
(B) Gastrin
(C) Cytokinin
(D) Cholecystokinin
Q4. The roots of a plant always grow downwards while shoots usually grows upwards and away from the earth. It is kown as;
(A) Hydrotropism
(B) Geotropism
(C) Chemotropism
(D) All of the above
Q5. Type II diabetes is characterized by
(A) Hyperglycemia
(B) Polyuria
(C) Both of the above
(D) None of the above
Q6. Which instrument is used for measuring the altitude, direction and velocity of clouds?
(A) Pyrgeometer
(B) Nephoscope.
(C) Nephelumeter
(D) Venturimeter
Q7. Artificial kidney helps :
(A) Remove nitrogenous waste products from blood
(B) Reabsorbs useful substancesfrom tubules to blood
(C) Secretes wasteful substances from blood to tubules
(D) All of the above
Q8. Which of the following instruments is used for measuring very high temperature?.
(A) Photometer
(B) Pyrgeometer
(C) Solarimeter
(D) Pyrometer
Q9. Which of the following should be avoided in biological marriage?
(A) A+ boy and A- girl
(B) A+ boy and A+ girl
(C) O+ boy and O+ girl
(D) AB+ boy and AB+ girl
Q10. Insulin is secreted from which gland or organ of human body?
(A) Kidney
(B) Liver
(C) Pancreas
(D) Small Intestine
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