Description : The speed of the satellite increases as its height in orbit gets A. lower B. higher C. closer to the moon D. closer to the sun
Last Answer : A. lower
Description : What is the height of a satellite in a synchronous equatorial orbit? A. 42000 mi B. 6800 mi C. 22,300 mi D. 35,860 mi
Last Answer : C. 22,300 mi
Description : What is the orbit height of a GPS satellite? A. 10,898 nmi B. 10,898 mi C. 10,898 km D. 10, 898 m
Last Answer : A. 10,898 nmi
Description : A satellite stay in orbit because the following two factors are balanced A. Satellite weight and speed B. Gravitational force and centrifugal force C. Centripetal force and speed D. Satellite weight and the pull of the moon and sun
Last Answer : B. Gravitational force and centrifugal force
Description : _________ detects the satellite signal relayed from the feed and converts it to an electric current, amplifies and lower its frequency. A. Horn antenna B. LNA C. Satellite receiver D. Satellite dish
Last Answer : B. LNA
Description : Calculate the speed of a satellite in an orbit at a height of 1000 km from the Earth’s surface.
Last Answer : Calculate the speed of a satellite in an orbit at a height of 1000 km from the Earth’s surface. ME = 5.98 × 1024 kg, R = 6.4 × 106 m.
Description : The first satellite launched for a geosynchronous orbit but unfortunately lost during orbit injection A. Syncom I B. Telstar I C. Sputnik I D. Early Bird I
Last Answer : A. Syncom I
Description : Refers to the satellite orientation with respect to the earth A. Satellite altitude B. Satellite position C. Satellite location D. Satellite orbit
Last Answer : A. Satellite altitude
Description : When the satellite are spaced 4˚ of the 360˚ complete circle, how many parking spaces or orbit slots are available? A. 90 B. 85 C. 95 D. 80
Last Answer : A. 90
Description : incidentally propose the geostationary scheme or orbit of the satellite in 1940s A. Arthur Clarke B. Carl Friedrich Gauss C. Samuel Morse D. Stephen Gray
Last Answer : A. Arthur Clarke
Description : The jet thrusters are usually fired to A. maintain altitude B. put the satellite into the transfer orbit C. inject the satellite in the geosynchronous orbit D. bring the satellite back to earth.
Last Answer : A. maintain altitude
Description : What is the orbit of Motorola’s Iridium satellite system? A. Polar B. Equatorial C. Inclined elliptical D. Inclined equatorial
Last Answer : A. Polar
Description : Which of the following satellite subsystem provides stabilization in orbit and senses changes in orientation? A. Attitude control subsystem B. TTC C. AKM D. Transponder
Last Answer : A. Attitude control subsystem
Description : ECE Board Exam March 1996 It is a spacecraft placed in orbit around the earth carrying onboard microwave receiver and transmitting equipments. A. Fiber optic equipment B. Communications satellite C. Wireless radio system D. Coaxial cable syste
Last Answer : B. Communications satellite
Description : ECE Board Exam March 1996 The point on the satellite orbit, closest to the earth is A. prograde B. perigee C. zenith D. apogee
Last Answer : B. perigee
Description : At lower temperatures and pressures, the latent heat of vaporization of a refrigerant (a) decreases (b) increases (c) remains same (d) depends on other factors
Last Answer : Ans: b
Description : Each time a defect gets detected and fixed, the reliability of a software product (A) increases. (B) decreases. (C) remains constant. (D) cannot say anything.
Last Answer : (A) increases.
Description : The volume of a given amount of water _________ as the temperature decreases from 4˚C to 0˚C. a. decreases b. increases c. remains constant d. none of the above
Last Answer : increases
Description : The maximum height of an elliptical orbit is called the A. Perigee B. Apex C. Zenith D. Apogee
Last Answer : D. Apogee
Description : If speed of rotation of the earth increases, the weight of the body – (1) decreases (2) increases (3) remains the same (4) may increase or decrease
Last Answer : (1) decreases Explanation: The weight of a body on the earth is the amount of gravitational pull on it exerted by the earth. Similarly there is another force exerted on a body on earth, that ... under the influence of the centrifugal force and the weight of the body will seem to have decreased.
Description : When light passes from air into water, the frequency of the light remains the same. What happens to the speed? And the wavelength of light as it crosses the boundary in going from air into ... same Decreases C. Remains the same remains the same D. Decreases Increases E. Decreases Decreases
Last Answer : E. Decreases Decreases
Description : Air resistance ______ with an increase in the speed of the object moving through it. a) increases b)decreases c)remains same d)no change
Last Answer : a) increases
Description : If speed of rotation of the earth increases, the weight of the body (1) decreases (2) increases (3) remains the same (4) may increase or decrease
Last Answer : decreases
Description : The elasticity of a demand curve with a constant slope (a) Increases at higher price ; (b) Decreases at higher price; (c) Increases at lower price ; (d) Remains constant
Last Answer : (a) Increases at higher price ;
Description : The main power sources for a satellite are A. batteries B. solar cells C. fuel cells D. thermoelectric generators 58. The maximum height of an ellip
Last Answer : B. solar cells
Description : What height must a satellite be placed above the surface of the earth in order for its rotation to be equal to earth’s rotation? A. 26,426.4 miles B. 27,426.4 miles C. 23,426.4 miles D. 22,426.4 miles
Last Answer : D. 22,426.4 miles
Description : In a heat exchanger with steam outside the tubes, a liquid gets heated to 45°C, when its flow velocity in the tubes is 2 m/s. If the flow velocity is reduced to 1 m/s, other things remaining ... than 45°C (B) More than 45°C (C) Equal to 45°C (D) Initially decreases and remains constant thereafter
Last Answer : (B) More than 45°C
Description : Resting face height in edentulous patients: A. Decreases when head is tilted back (the opposite is true B. Increases when lower denture is inserted C. Does not change over time
Last Answer : B. Increases when lower denture is inserted
Description : The speed of light with the rise in the temperature of the medium : (1) Increases (2) Decreases (3) Remains unaltered (4) Drops suddenly
Last Answer : (3) Remains unaltered Explanation: The speed of light with the rise in the temperature of the medium remains unaltered because speed of light doesn't depend on temperature. It does depend, however ... in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics.
Description : In an oil-lubricated journal bearing, coefficient of friction between the journal and the bearing. [IES-1995] (a) Remains constant at all speeds. (b) is minimum at zero speed and increases ... speed. (d) becomes minimum at an optimum speed and then increases with further increase in speed.
Last Answer : (d) becomes minimum at an optimum speed and then increases with further increase in speed.
Description : With increase in pump speed, its NPSH requirement (A) Decreases (B) Increases (C) Remains unaltered (D) Can either increase or decrease; depends on other factors
Last Answer : (B) Increases
Last Answer : Remains unaltered
Description : _______ detects the satellite signal relayed from the feed and converts it to an electric current, amplifies and lower its frequency. A. Feedhorn B. Satellite dish C. Satellite receiver D. LNB
Last Answer : D. LNB
Description : What condition occur when the refractive index of the air decreases with height much more rapidly the normal? A. Refraction B. Superrefraction C. Subrefraction D. Diffraction
Last Answer : B. Superrefraction
Description : What happens to the beamwidth of an antenna as the gain is increased? A. The beamwidth increases geometrically as the gain is increased. B. The beamwidth increases arithmetically as the gain is increased ... unaffected by the gain of the antenna. D. The beamwidth decreases as the gain is increased.
Last Answer : D. The beamwidth decreases as the gain is increased.
Description : When load factor and diversity factor increases ___________ a) cost of electricity decreases b) cost of electricity also increases c) cost of electricity remains same d) cost of electricity increases exponential
Last Answer : Ans: A
Description : Work input to the air compressor with n as index of compression A. Increases with increase in value of n B. Decrease with increase in value of n C. remains same whatever the value of n D. first increase and then decreases with increase of value of n.
Last Answer : ANSWER : A
Description : When iron rusts, the weight (a) Increases (b) Decreases (c) Remains the same (d) First increases then decreases
Last Answer : Ans:(a)
Description : In a period of inflation and price rises the supply of money remains - (1) the same (2) increases (3) decreases (4) increases or decreases pro-portionately.
Last Answer : (2) increases Explanation: Money supply is the total amount of monetary assets available in an economy at a specific time. The relation between money and prices is historically associated with the quantity ... money-supply growth, at least for rapid increases in the amount of money in the economy.
Description : When iron rusts, its weight – (1) decreases (2) increases (3) remains the same (4) first increases and then decreases
Last Answer : (2) increases Explanation: When iron rusts, oxide compounds are formed due the interaction between oxygen in the air or in water and the metal. Because of the oxygen atoms binding with the metal, the weight of the metal with rust will increase.
Description : In a period from Li to F, ionisation potential – (1) cannot be predicted (2) increases (3) decreases (4) remains same
Last Answer : (1) cannot be predicted
Description : When iron rusts, its weight : (1) decreases (2) increases (3) remains the same (4) first increases and then decreases
Last Answer : (2) increases Explanation: When iron rusts, oxide compounds are formed due the interaction between oxygen in the air or in water an the metal.
Description : With the increase of pressure, the boiling point of any substance - (1) Increases (2) Decreases (3) Remains Same (4) Becomes zero
Last Answer : (1) Increases Explanation: The temperature stays the same until all the liquid has vaporized. As the temperature of a liquid rises, the pressure of escaping vapor also rises, and at the boiling point ... vapor is equal to that exerted on the liquid by the surrounding air, causing bubbles to form.
Description : If cream is removed from milk, its density – (1) Increases (2) Decreases (3) Remains the same (4) May increase or decrease
Last Answer : (1) Increases Explanation: The density of pure fresh milk being on the average 1.032, while the density of fat globules is about 0.86. It follows that the removal of cream will increase the density, while the addition of water will decrease it.
Description : As we go from Equator to North pole the value of `S, the acceleration due to gravity (1) remains the same (2) decreases (3) increases (4) None of the above
Last Answer : (3) increases Explanation: The acceleration due to gravity of earth is the rate of increase of velocity of a body falling freely towards the earth. At a given place, the value of acceleration due to gravity ... out at the equator. The value of 'g' is minimum at the equator and maximum at the poles.
Description : Due to rusting the weight of iron - (1) Decreases (2) Increases (3) Remains the same (4) Uncertain
Last Answer : (2) Increases Explanation: Corrosion of a block of metal - Iron to Iron Oxide (rust), Aluminum to Bauxite, Cooper to Cupric-oxide, or otherwise - does not change the weight of the metal in the system.
Description : With the increase of pressure, the boiling point of any substance – (1) Increases (2) Decreases (3) Remains Same (4) Becomes zero
Description : When the length and cross sectional area of a wire are both tripled, the resistance _____________. A. increases nine fold B. increases three fold C. remains the same D. decreases six fold
Last Answer : Answer: C
Description : When the current in a power transmission line is increased, the power loss _____________. A. increases as the square of the current B. decreases as the square root of the current C. remains the same, as it is independent of current flow D. increases in direct proportion as the current
Last Answer : Answer: A
Description : When the voltage remains constant, and the resistance increases in a series circuit, current flow _____________. A. decreases B. remains the same C. increases D. increases by the square