Science General Study Questions
Q31. The energy content of food is generally measured in
(a) Ergs
(b) Coulombs
(c) Kilojoules
(d) Calories
Answer: (d) Calories
Q32. Heavy water was discovered by
(a) Hans Suess
(b) Harold Urey
(c) Alexander Oparin
(d) John S. Lewis
Answer: (b) Harold Urey
Q33. Wi Max is related to
(a) Bio Technology
(b) Space Technology
(c) Communication Technology
(d) Missile Technology
Answer: (c) Communication Technology
Q34. Which one of the following types of glass can cut off the UV rays
(a) Soda Glass
(b) Pyrex Glass
(c) Jena Glass
(d) Crookes Glass
Answer: (d) Crookes Glass
Q35. Which of the following is used as an explosive
(a) Phosphorous Trichloride
(b) Mercuric Oxide
(c) Graphite
(d) Nitroglycerin
Answer: (d) Nitroglycerin
Q36. Which of the following types of waves are used in a night vision equipment
(a) Radio Waves
(b) Infra Red Waves
(c) Micro Waves
(d) None of the above
Answer: (b) Infra Red Waves
Q37. Kg m2 per sec is the unit of
(a) Energy
(b) Momentum
(c) Angular Momentum
(d) Power
Answer: (c) Angular Momentum
Q38. An ideal voltage source will charge an ideal capacitor
(a) In infinite time
(b) Exponentially
(c) Instantaneously
(d) None of the above
Answer: (c) Instantaneously
Q39. The laser produced from stimulated emission has the following characteristic
(a) Monochromatic
(b) Coherent
(c) Very narrow and collimated ray
(d) All of the above
Answer: (d) All of the above
Q40. Very small-time intervals are accurately measured by the
(a) Pulsars
(b) White dwarfs
(c) Atomic clocks
(d) Quartz clocks
Answer: (c) Atomic clocks
Q41. The unit used to measure the supersonic speed is
(a) Knots
(b) Mach
(c) Richter
(d) Hertz
Answer: (b) Mach
Q42. On the day the sun is farthest to the earth, the earth is said to be in
(a) Aphelion
(b) Perihelion
(c) Apogee
(d) Perigee
Answer: (a) Aphelion
Q43. The device which does not have frequency dependent properties of its own is known as
(a) Inductor
(b) Capacitor
(c) Resistor
(d) All of the above
Answer: (c) Resistor
Q44. Transformer works on the principle of
(a) Mutual Induction
(b) Self Induction
(c) Both
(d) None of the above
Answer: (a) Mutual Induction
Q45. Henry is the standard unit of
(a) Pressure
(b) Electrical inductance
(c) Electrical resistance
(d) Angular Motion
Answer: (b) Electrical inductance
Practice Test Exam