Sunday, May 4, 2014

GK QUESTIONS AND ANSWERS

GK QUESTIONS AND ANSWERS

Physics General Knowledge Objective Questions

Posted: 03 May 2014 12:30 PM PDT

Physics General Knowledge Objective Questions and Answers


1. Which of the following is associated with Doppler Effect?
(a) Magnetism
(b) Motor
(c) Sound
(d) Light
Answer: (c) Sound

2. Force/Area is the formulae of …………?
(a) Pressure
(b) Density
(c) Mass
(d) Surface tension
Answer: (a) Pressure

3. Hydrogen Bomb is based on the principle of:
(a) Nuclear fusion
(b) Nuclear fission
(c) Separation
(d) None
Answer: (a) Nuclear fusion

4. Rocket works on the principle of conservation of:
(a) Mass
(b) Momentum
(c) Volume
(d) None of these
Answer: (b) Momentum

5. What is the escape velocity from Earth's surface?
(a) 12 Km/sec
(b) 11.2 Km/sec
(c) 11 Km/sec
(d) 12.4 Km/sec
Answer: (b) 11.2 Km/sec

6. When a constant force is applied to a body, it moves with uniform?
(a) Speed
(b) Acceleration
(c) Velocity
(d) Retardation
Answer: (b) Acceleration

7. A body starting from rest moves with a constant acceleration of 4 m/m2. Find the distance covered by the body after 10 second?
(a) 40 m
(b) 120 m
(c) 80 m
(d) None of these
Answer: (d) None of these

8. Which of the following is a scalar quantity?
(a) Mass
(b) Time
(c) Volume
(d) None of these
Answer: (a) Mass
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Saturday, May 3, 2014

GK QUESTIONS AND ANSWERS

GK QUESTIONS AND ANSWERS

Biology General Knowledge Questions

Posted: 02 May 2014 12:30 PM PDT

1. The red blood cells originate in the:
(a) Bone marrow
(b) Brain
(c) Ligaments
(d) Muscles
Answer: (a) Bone marrow

2. Who, amongst the following, is credited with the discovery of penicillin?
(a) Edward Jenner
(b) Louis Pasteur
(c) Alexander Flemings
(d) William Harvey
Answer: (c) Alexander Flemings

3. Which of the following is essential for the plants to help them in the formation of chlorophyll?
(a) Calcium V
(b) Magnesium
(c) Potassium
(d) Phosphorus
Answer: (b) Magnesium

4. The other name of Vitamin C is?
(a) Formic acid
(b) Acetic acid
(c) Ascorbic acid
(d) Riboflavin
Answer: (c) Ascorbic acid

5. Who is credited with the discovery of neutron?
(a) Chadwick
(b) Bohr
(c) Newton
(d) Rutherford
Answer: (a) Chadwick

6. The average life of a red blood cell in the body is about:
(a) 95 days
(b) 105 days
(c) 115 days
(d) 130 days
Answer: (c) 115 days
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Friday, May 2, 2014

GK QUESTIONS AND ANSWERS

GK QUESTIONS AND ANSWERS

General Knowledge Questions and Answers on Energy

Posted: 01 May 2014 01:28 PM PDT

1. The capacity to do work is known as?
Answer: Energy

2. Law of conservation of energy is introduced by?
Answer: Einstein

3. Prime source of energy?
Answer: Sun

4. Instrument used to convert mechanical energy into electrical energy?
Answer: Dynamo, Generator

5. Instrument used to convert chemical energy into electrical energy?
Answer: Cell

6. …………… convert electrical energy into light energy?
Answer: Electric bulb

7. Solar energy can be converted into electrical energy using?
Answer: Solar cell

8. Solar cells are made of?
Answer: Semiconductor materials
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