Description : Actual lift of a pump is always less than the theoretical lift and is limited by the (A) Specific gravity & temperature of the liquid (B) Leakage & pressure decreasing at higher elevations (C) Frictional resistance through pipes, fittings & passages (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Select the correct statement. (A) A contour is not necessarily a closed curve. B) A contour represents a ridge line if the concave side of lower value contour lies towards the higher value contour ... each other except in case of an overhanging cliff (D) All of the above statements are correct
Last Answer : (C) Two contours of different elevations do not cross each other except in case of an overhanging clif
Description : A ball bounces higher at high altitudes than in plains. This is because (a) the pressure on higher altitudes is lower than that in plains (b) Downward pull due to gravity is less at higher altitudes ... ball (d) You become more energetic at hills, so greater the force applied, higher goes the ball.
Last Answer : Ans:(a)
Description : Consider the following pairs: Tree: Location of its natural habitat 1. Rosewood: Slopes of Western Ghats of Karnataka and Kerala 2. Spruce : Western Himalayas at elevations from 2100 m to 3600 'm 3. Walnut: Lower elevations on Eastern ... IAS 2009] (a) A only (b) A and B (c) Band C (d) A, B and C
Last Answer : Ans: (b)
Description : Assertion : Current between two points in an electrical always flows from higher potential to lower potential. Reason : During charging of a battery c
Last Answer : Assertion : Current between two points in an electrical always flows from higher potential to lower ... . If both Assertion and Reason are false.
Description : The energy that flows from higher temperature object to a lower temperature object because of the difference in temperature is called a. heat b. temperature c. thermodynamics cycle d. energy flow
Last Answer : heat
Description : __________ is a communication that flows from a higher level to one or more lower levels in the organization. (a) Horizontal communication ; (b) Upward communication ; (c) Downward communication (d) None of given options
Last Answer : (d) None of given options
Description : Which cold and dense air blowing down the mountain slope during the night? -General Knowledge
Last Answer : The answer is 'Katabatic wind'
Last Answer : answer:
Description : Which cold and dense air blowing down the mountain slope during the night?
Last Answer : Katabatic wind
Description : At a constant pressure, hot air than cold air (a) is more dense (b) is less dense (c) has more vapor (d) has less vapor
Last Answer : (b) is less dense
Description : Which of the following statements concerning the specific gravity of a battery electrolyte is true? A. The electrolyte becomes less dense when it is cooled. B. The specific gravity reading is lowered ... water is added. D. The temperature does not affect the specific gravity of the electrolyte.
Last Answer : Answer: B
Description : The freezing point of the electrolyte in a fully charged lead-acid battery will be _____________. A. higher than in a discharged battery B. lower than in a discharged battery C. the same as in a discharged battery D. higher than in a discharged battery, but the specific gravity will be less
Description : Straight run petrol as compared to methyl/ethyl alcohol has (A) Lower calorific value (B) Lower octane number (C) Higher specific gravity (D) Higher ignition temperature
Last Answer : (B) Lower octane number
Description : Pick out the wrong statement. (A) Aromatics have higher specific gravity than paraffins (B) Gross calorific value (GCV) of petrofuels is equal to (12400 - 2100 ρ 2 ) where, ρ is the specific gravity ... volume basis (i.e., Kcal/litre) (D) Higher specific gravity of petrofuels means higher C/H ratio
Last Answer : (C) Heavier petrofuels have higher GCV on weight basis (i.e., Kcal/kg) but lower GCV on volume basis (i.e., Kcal/litre)
Description : Pick out the wrong statement. (A) Higher specific gravity of petroleum products means higher C/H ratio (B) Aromatics have lower specific gravity than corresponding paraffins (C) Hydrocarbons of low ... of high specific gravity (e.g., aromatics) possess the maximum thermal energy per unit weight
Last Answer : (B) Aromatics have lower specific gravity than corresponding paraffins
Description : Low thermal conductivity of heat insulating materials is due to its (A) Dense structure (B) High proportion of air space (C) High specific heat (D) None of these
Last Answer : (B) High proportion of air space
Description : Which mountain range can boast more than 110 peaks with elevations of 24,000 feet (7,300 meters) or more above sea level? -Geography
Last Answer : The Himalayas, can boast more than 110 peaks with elevations of 24,000 feet (7,300 meters) or more above sea level.
Description : What is a map that uses shading to show elevations called?
Last Answer : It is a shaded relief map.
Description : What factor is responsible for the oldest rock remaining at the highest elevations In New York?
Last Answer : Need answer
Description : The total space loss of transmission and reception for two ground stations with uplink frequency 8GHz and a downlink of 6 GHz with angle of elevations of 3˚ and 7˚ A respectively is A. 403 dB B. 100 dB C. 20 dB D. 215 dB
Last Answer : A. 403 dB
Description : Economy of a multiple effect evaporator is not influenced much by the (A) Boiling point elevations (B) Temperature of the feed (C) Rate of heat transfer (D) Ratio of the weight of the thin liquor to thick liquor
Last Answer : (A) Boiling point elevations
Description : Contour lines of different elevations can unite to form one line, only in the case of (A) A vertical cliff (B) A saddle (C) A water shed line (D) A hill top
Last Answer : (A) A vertical cliff
Description : Profile levelling is usually done for determining (A) Contours of an area (B) Capacity of a reservoir (C) Elevations along a straight line (D) Boundaries of property
Last Answer : (C) Elevations along a straight line
Description : Contours of different elevations may cross each other only in the case of (A) An overhanging cliff (B) A vertical cliff (C) A saddle (D) An inclined plane
Last Answer : (A) An overhanging cliff
Description : For true difference in elevations between two points and , the level must be set up (A) At any point between A and B (B) At the exact midpoint of A and B (C) Near the point A (D) Near the point B
Last Answer : (B) At the exact midpoint of A and B
Description : If the elevations along a road increase, the slope of the road along the longitudinal direction, is known as (A) Gradient (B) Grade (C) Positive grade (D) Negative grade
Last Answer : Answer: Option A
Description : During last phase of the reconnaissance, details of the grade line is recorded on 2 metre poles to indicate (A) Direction of the proposed alignment (B) Distance between the previous and forward pegs (C) Relative elevations of pegs (D) All the above
Last Answer : Answer: Option D
Description : When water is held tightly as thin film around soil particles by adsorption forces and flows at gravity of > -31 bar, is called
Last Answer : Ans.Hygroscopic water
Description : he pressure drop per unit length of pipe incurred by a fluid 'X' flowing through pipe is Δp. If another fluid 'Y' having both the specific gravity & density just double of that of fluid 'X', flows through the same pipe ... then the pressure drop in this case will be (A) Δp (B) 2Δp (C) Δp 2 (D) Δp/2
Last Answer : (B) 2Δp
Description : Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict pressure drop
Last Answer : (A) Increase
Description : What is the dense mass of small water drops on smoke particles in the lower layers of the atmosphere? -Do You Know?
Last Answer : Smog is the correct answer.
Description : What is the dense mass of small water drops on smoke particles in the lower layers of the atmosphere
Last Answer : Smog
Description : The temperature of Thiruvananthapuram is lower than that of Mumbai in May and higher than that of Mumbai in January, because: [IAS 2004] (a) Thiruvananthapuram has cold current and Mumbai is faced ... side and Mumbai is on the leeward side (d) Thiruvananthapuram is Vegetated while Mumbai is not
Description : On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because - (1) metals ... metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals
Last Answer : (3) metals are good conductors of heat Explanation: On a chilly day, the room temperature is lower than our body temperature. Since metals have a higher coefficient of thermal conductivity than plastic, they ... from our fingers will flow to the metal cap much more quickly than to the plastic body.
Description : A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides (A) Higher economy (B) Lower capacity (C) Both (A) & (B) (D) Lower economy
Last Answer : (A) Higher economy
Description : Fqra cold viscous feed, backward feed gives __________ than forward feed. (A) A higher capacity (B) A lower capacity (C) Lower economy (D) None of these
Last Answer : (A) A higher capacity
Description : Cold shot cooling is only practical when the feed temperature is __________ than the reaction temperature. (A) Higher (B) Much higher (C) Lower (D) Much lower
Last Answer : (D) Much lower
Description : On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : (1) metals ... metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals
Last Answer : metals are good conductors of heat
Description : A person can jump higher on the moon's surface than on the earth because – (1) the moon's surface is rough (2) the acceleration due to gravity in moon is smaller than that on the earth. (3) the moon is cooler than earth (4) the moon has no atmosphere
Last Answer : (2) the acceleration due to gravity in moon is smaller than that on the earth. Explanation: The acceleration due to the gravitational field of moon (g' = 1.62631 ms-2) is one-sixth of the acceleration due ... earth. It is due to this reason; a man can jump six times higher on moon than on earth.
Description : A slow continual loss of electrolyte level from one cell of a storage battery could be due to _______________. A. a cracked casing B. too low a charging rate C. the specific gravity being higher than normal D. one filler cap installed too tightly
Last Answer : Answer: A
Description : Coke oven gas is a better fuel than blast furnace gas, because of its higher (A) Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) (B) Adiabatic flame temperature ... release rate (thus requiring smaller combustion chamber) (D) All (A), (B) and (C)
Description : A person can jump higher on the moon’s surface than on the earth because : (1) the moon’s surface is rough (2) the acceleration due to gravity in moon is smaller than that on the earth. (3) the moon is cooler than earth (4) the moon has no atmosphere
Last Answer : the acceleration due to gravity in moon is smaller than that on the earth.
Description : Pick up the correct statement from the following: (A) If ground water enters the channel, the channel is known as effluent channel (B) If water goes out of channel to meet ground water, the channel ... level than the water level in channel, ground water flows to the stream (D) All the above
Description : land breeze is a cold breeze which flows from land to
Last Answer : Sea
Description : According to first law of thermodynamics (a) mass and energy are mutually convertible (b) Carnot engine is most efficient (c) heat and work are mutually convertible (d) mass and light are mutually convertible (e) heat flows from hot substance to cold substance.
Last Answer : Answer : c
Description : Which are the two lower chambers of the heart from which purified blood flows out?
Last Answer : Ventricles
Description : In an extended surface heat exchanger, fluid having lower co-efficient (A) Flows through the tube (B) Flows outside the tubes (C) Can flow either inside or outside the tubes (D) Should not be used as it gives very high pressure drop
Last Answer : (B) Flows outside the tubes
Description : Water gets evaporated from water surfaces and land surfaces, get converted into water drops at lower temperatures, flows over ground surface and finally meets its source, i.e. lake, sea, etc. This ... Hydrological cycle (B) Water cycle (C) Evaporation and precipitation cycle (D) All the above
Last Answer : (D) All the above