(A) Igneous rocks
(B) Sedimentary rocks
(C) Metamorphic rocks
(D) Acid rocks
Q. The rock formed through the cooling and solidification of magma or lava is known as:
(A) Sedimentary rock
(B) Igneous rock
(C) Metamorphic rock
(D) Acid rocks
Q. Igneous rock is also known as:
(A) Magmatic rock
(B) Acid rock
(C) Basic rock
(D) Sedimentary rock
Answers:
1. (C) Metamorphic rocks
2. (B) Igneous rock
3. (A) Magmatic rock
(A) Light year
(B) Astronomical unit
(C) Parsec
(D) Parallax
Q. What is the symbol of Astronomical unit?
(A) AU
(B) ASU
(C) ALU
(D) AST-U
Q. The light year is a unit of length used to express _______ distances.
(A) Levenshtein
(B) Lee
(C) Astronomical
(D) None of these
Answers:
1. (B) Astronomical unit
2. (A) AU
3. (C) Astronomical
(A) Diatonic scale
(B) Fahrenheit scale
(C) Ritcher scale
(D) Celsius scale
Q. A device used for measuring wind speed and direction is called:
(A) Anemometer
(B) Hydrometer
(C) Ammeter
(D) None of these
Q. The instrument which is use to measure the current in a circuit is called:
(A) Anemometer
(B) Hydrometer
(C) Ammeter
(D) None of these
Answers:
1. (C) Ritcher scale
2. (A) Anemometer
3. (C) Ammeter
(A) 25 miles/sec
(B) 60 miles/sec
(C) 7 miles/sec
(D) 10 miles/sec
Q. Escape velocity is the speed at which the sum of an object’s kinetic energy and its gravitational potential energy is equal to:
(A) zero
(B) each other
(C) it’s speed
(D) None of these
Q. The simplest way of deriving the formula for escape velocity is to use conservation of:
(A) Electric Power
(B) Energy
(C) Speed
(D) None of these
Answers:
1. (C) 7 miles/sec
2. (A) zero
3. (B) Energy
(A) Conductor
(B) Non-conductor
(C) Semi-conductor
(D) None of these
Q. Which of the following is a conductor?
(A) Plastic
(B) Rubber
(C) Iron
(D) wood
Q. A material having the conductivity value falling between that of a conduction and insulator is:
(A) Semi-conductor
(B) HTLS conductor
(C) Insulator
(D) None of these
Answers:
1. (B) Non-conductor
2. (C) Iron
3. (A) Semi-conductor