Description : 11. Explain with the help of a diagram, why a pencil partly immersed in water appears to be bent at the water surface. [Delhi] -Chemistry-10
Last Answer : Answer. Light from different points on the pencil, immersed in water refracts and appears to come from a point above the original position.
Description : If a bar magnet, tied in the middle with a thread, were suspended at the north pole of the earth, it would take (a) a horizontal position (b) a nearly vertical position with its north pole pointing downward (c) a vertical position with its south pole pointing downward (d) a slanting position
Last Answer : Ans:(b)
Description : When a pencil is dipped in glass of water it appears bent near the surface of water due to ______ of light. a) refraction b)reflection c)bouncing back of light d)none
Last Answer : a) refraction
Description : The word “Linear” means that the relationships are represented by _____ a. Diagonal lines b. Curved lines c. Straight lines d. Slanting lines
Last Answer : c. Straight lines
Description : A spherical ball made of steel when dropped in mercury container will – (1) sink in mercury (2) will be on the surface of mercury (3) will be partly immersed mercury (4) will dissolve in mercury
Last Answer : (2) will be on the surface of mercury Explanation: The density of steel usually ranges between 7.75 and 8.05 g/cm3 and the density of mercury is 13.534 g/cm3. Mercury ... materials usually have different densities, so density is an important concept regarding buoyancy, purity and packaging.
Description : A spherical ball made of steel when dropped in mercury container will (1) sink in mercury (2) will be on the surface of mercury (3) will be partly immersed mercury (4) will dissolve in mercury
Last Answer : will be on the surface of mercury
Description : A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury? (A) The metal piece will simply float over the mercury (B ... will be immersed with its top surface just at mercury level (D) Metal piece will sink to the bottom
Last Answer : Answer: Option C
Description : Five male teenagers and five female teens each step into ten separate circles. The males make disparaging remarks to the females while pointing their thumbs downward, and the female teens respond to ... loudly, until only one person is left who is legally performing the maneuver within t -Riddles
Last Answer : The two five-member teams are competing in a hula-hoop endurance contest. The theme song played during the competition is one of The Chipmunks greatest hits called: The Chipmunk’s Hula-Hoop Christmas Song.
Description : A pre-stressed rectangular beam which carries two concentrated loads W at L/3 from either end, is provided with a bent tendon with tension P such that central one-third portion of the tendon remains parallel to the longitudinal axis, the maximum dip h is (A) WL/P (B) WL/2P (C) WL/3P (D) WL/4P
Description : The curved swellings from the growth of layers or wounds left after branches are cut off in an irregular manner are known as (A) Knots (B) Rindgalls (C) Burls (D) None of these
Last Answer : Answer: Option B
Description : The cross-section of a road partly in banking and partly in cutting is shown in the given figure. The area of the shaded portion is (A) b - rd)²/(r - s) (B) b - rd)²/(r + s) (C) ½ × (b + rd)²/(r - s) (D) b - rd)²/(s - r)
Last Answer : (A) b - rd)²/(r - s)
Description : In radiographs, an incipient carious lesion limited to the end of the proximal surface of a posterior tooth appears as: A. Radiopaque area B. Triangle with apex towards the tooth surface C. Larger in radiographs than actual lesion D. All of the above E. None of the above
Last Answer : B. Triangle with apex towards the tooth surface
Description : If x% is the gradient of an alignment and y% is the gradient after proper super-elevation along a curved portion of a highway, the differential grade along the curve, is (A) (x + y) % (B) (x - y) % (C) (y - x) % (D) (y + x) %
Description : If the rate of change of the super-elevation along a curved portion of a 7 metre wide road is 1 in 150 and the maximum super-elevation allowed is 1 in 15, the maximum length of the transition curve to be provided at either end, is (A) 65 m (B) 70 m (C) 75 m (D) 80 m
Description : The center of gravity of a uniform lamina lies at (A) The center of heavy portion (B) The bottom surface (C) The midpoint of its axis (D) All of the above
Last Answer : (C) The midpoint of its axis
Description : Aging: downward slide towards the grave; or a climb through life's experience towards wisdom?
Last Answer : Having had a few moments in my life where it looked like aging might not happen, I can definitely say I prefer it to the alternative. I actually enjoy a lot of aspects about it. I'm smarter, I no ... . Since it happens anyway (if you're lucky) I'm much happier embracing it than being upset by it.
Description : In a slanting hilly Indian terrain experiencing more than 200 cms of annual rainfall, which one of the following crops can be cultivated best? (1) Cotton (2) Jute (3) Tobacco (4) Tea
Last Answer : (4) Tea Explanation: Well distributed rainfall ranging around 2000 mm to 5000 mm is considered suitable for successful tea plantation. The monthly average maximum temperature ranging between 28°C and 32°C during April to ... monsoon period, as much as 10 to 12 incises (250-300 mm) of rain per day.
Description : Pick up the correct statement from the following: (A) Corrugated sheet iron is made by passing plain sheets between grooved rollers (B) Strength and stiffness of corrugated sheets are considerably increased (C) Corrugated sheets are generally used on slanting roofs (D) All the above
Last Answer : Answer: Option D
Description : Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam (A) Are curtailed if not required to resist the bending moment (B) Are bent up at suitable ... to serve as shear reinforcement (D) Are maintained at bottom to provide at least local bond stress
Description : what- two elevators are side by side. the freight elevator is at the bottom floor and traveling upward, and the express elevator is at the 20th floor and traveling downward. the height of the freight elevator?
Last Answer : in floors is described by the equation y= 1/4x, ......
Description : The dry-bulb temperature scale is read on a psychrometric chart along the: a. Left vertical axis b. Right vertical axis c. Saturation line and sloping downward to the right d. Top horizontal axis e. Horizontal axis on the bottom of the chart
Last Answer : ANSWER : E
Description : Due to shrinkage stresses, a simply supported beam having reinforcement only at bottom tends to (A) Deflect downward (B) Deflect upward (C) Deflect downward or upward (D) None of the above
Last Answer : Answer: Option A
Description : Water-tube boiler is the one, in which (A) Water passes through tubes and flue gases around it (B) Tube carrying hot flue gases are immersed in a pool of water (C) Tubes are placed in vertical position (D) None of these
Last Answer : Option A
Description : When an electron is moving horizontally between oppositely charged plates, it will move in the A. straight line B. fall directly downwards C. move towards positive plates D. curved path
Last Answer : curved path
Description : The blades of a centrifugal impeller are said to be curved forward, if the __________ of the motion of impeller blades. (A) Inlet tip of a blade curves in a direction opposite to that (B) Outlet tip ... Inlet tip of a blade is towards the direction (D) Outlet tip of a blade is towards the direction
Last Answer : (D) Outlet tip of a blade is towards the direction
Description : A relative short and broad mould board is curved rather abruptly near the top resulting in a greater degree of pulverization is called a. Sod bottom b. Stubble bottom b. General bottom d. Slat bottom
Last Answer : b. General bottom
Description : Ever wonder what the lightning speed would be if it didn't zigzag?
Last Answer : It travels at 93,000 miles per second whether it zig zags or not.
Description : In laminated object manufacturing (LOM), which of the following cutting strategy ispreferable? a.Directional scanning b.Zigzag tool paths c.Contouring and spiral paths d.Boundary cutting tool paths
Last Answer : d.Boundary cutting tool paths
Description : Who attacked zigzag when he was beating up stanly?
Last Answer : Zero attacks ZigZag when he is beating up Stanley.
Description : What does zigzag mean ?
Last Answer : Zigzag means crooked.
Description : The shape of the Himalayas is like (a) A straight line (b) An arc (c) A zigzag line (d) A spiral
Last Answer : Ans: (b)
Description : In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as (A) English bond (B) Double Flemish bond (C) Zigzag bond (D) Single Flemish bond
Description : The type of bond provided in brick masonry for carrying heavy loads is (A) Single Flemish bond (B) Double Flemish bond (C) English bond (D) Zigzag bond
Description : What travels down a waveguide by reflecting from the side walls in a zigzag pattern?
Last Answer : wavefronts
Description : Every partner is required to contribute towards the LLP in some manner as specified in LLP agreement.
Last Answer : TRUE
Description : A boy presses a side of a blue pencil to a side of a yellow pencil, holding both pencils vertically. One inch of the pressed side of the blue pencil, measuring from its lower end, is smeared ... in quantity. How many inches of each pencil will be sneared with paint after the tenth move? -Riddles
Last Answer : At the start, 1inch of the yellow pencil gets smeared with wet paint. As the blue pencil is moved downward, a second inch of the blue pencils smears a second inch of the yellow pencil. Each pair ... of moves will smear 5 inches. This together with the initial inch, makes 6 inches for each pencil.
Description : Explain why calcium metal after reacting with water starts floating on its * surface. Write the chemical equation for the reaction. Name one more metal that starts floating after some time when immersed in water. -Chemistry
Last Answer : Calcium starts floating because the bubbles of hydrogen gas formed stick to the surface of metal. Magnesium reacts with hot water and starts floating due to the bubbles of hydrogen gas sticking to its surface.
Description : One end of a cylindrical rod is grounded to a hemispherical surface of radius`R=20mm`.It is immersed in water`(mu=4//3)`.If the refractive index of th
Last Answer : One end of a cylindrical rod is grounded to a hemispherical surface of radius`R=20mm`.It is immersed in water`(mu ... is ................(determine)
Description : Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be (A) 1000 kg (B) 4000 kg (C) 2000 kg (D) 8000 kg
Description : A vertically immersed surface is shown in the below figure. The distance of its centre of pressure from the water surface is (A) (bd²/12) + (B) (d²/12 ) + (C) b²/12 + (D) d²/12 +
Description : When a brick is immersed in water for 24 hours and then dried, if (A) No grey or white deposits appear on the surface, the brick is free from soluble salts (B) 10 percent surface is ... percent surface is covered with grey or white deposits, the brick has serious efflorescence (D) All the above
Description : The term Blue Shift' is used to indicate? A. Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object? B. Turning a star from white ... . In future sun would become blue D. Black hole was blue at its start E. None of these
Last Answer : A. Doppler effect in which an object appears bluer when it is moving towards the observer or observer is moving towards the object?
Description : 147 A ray directed towards the centre of curvature of a spherical mirror a) become parallel to principal axis b)retraces its path c)appears to diverge from focus d)passes through focus.
Last Answer : b)retraces its path
Description : Recitation in learning appears most profitable when introduced Options: A) At the beginning of the learning period B) Uniformity throughout the learning period C) Towards the end of the learning period D) Only as preparation for the testing period
Last Answer : C) Towards the end of the learning period
Description : Downward entry and movement of water in soil surface is — a. Percolation b. Infiltration c. Permeability d. None of these
Last Answer : b. Infiltration
Description : Excessive camber on pavements may cause (A) Deterioration of central portion (B) Slip of the speedy vehicles towards the edges (C) Erosion of the berms (D) All the above
Description : after a harsh winter my rose of sharon bush appears dead except for some new green growth by the bottom of the bush.
Last Answer : The danger of frost has not passed in NE PA...........our black walnut tree is what we watch.....it is only showing part of the leaves.............when that is fully open the danger of frost ... is seen. fertilize it. We had a lot of days under zero this year not good for the plants & trees.
Description : A GARDENIA SHRUB APPEARS DEADTINY GREEN GROWTH AT VERY BOTTOM SHOULD I PRUNE ALL DEAD OFF6562
Last Answer : I would wait until June as the danger of frost has not left us yet.