Description : The sensitiveness of a level tube decreases if (A) Radius of curvature of its inner surface is increased (B) Diameter of the tube is increased (C) Length of the vapour bubble is increased (D) Both viscosity and surface tension are increased
Last Answer : (D) Both viscosity and surface tension are increased
Description : The sensitivity of a bubble tube can be increased by (A) Increasing the diameter of the tube (B) Decreasing the length of bubble (C) Increasing the viscosity of liquid (D) Decreasing the radius of curvature of tube
Last Answer : (A) Increasing the diameter of the tube
Description : Minimum radius of curvature of National Highways or State highways in hill region free from snow, is kept (A) 60 m (B) 50 m (C) 33 m (D) 30 m
Last Answer : Answer: Option B
Description : In reciprocal levelling, the error which is not completely eliminated, is due to (A) Earth's curvature (B) Non-adjustment of line of collimation (C) Refraction (D) Non-adjustment of the bubble tube
Last Answer : (C) Refraction
Description : Designation of a curve is made by: (A) Angle subtended by a chord of any length (B) Angle subtended by an arc of specified length (C) Radius of the curve (D) Curvature of the curve
Last Answer : (C) Radius of the curve
Description : The desired sensitivity of a bubble tube with 2 mm divisions is 30". The radius of the bubble tube should be (A) 13.75 m (B) 3.44 m (C) 1375 m (D) None of these
Last Answer : (A) 13.75 m
Description : A level when set up 25 m from peg A and 50 m from peg B reads 2.847 on a staff held on A and 3.462 on a staff held on B, keeping bubble at its centre while reading. If the reduced levels of A and B are 283.665 m ... collimation error per 100 m is (A) 0.015 m (B) 0.030 m (C) 0.045 m (D) 0.060 m
Last Answer : (D) 0.060 m
Description : If the radius of curvature of a hill road is 50 m, the percentage grade compensation should be (A) 60/R (B) 70/R (C) 75/R (D) 80/R
Last Answer : Answer: Option C
Description : In a constant level tube, size of the bubble remains constant because upper wall is (A) Of relatively larger radius (B) Of relatively smaller radius (C) Flat (D) Convex downwards
Last Answer : (A) Of relatively larger radius
Description : Sensitiveness of a level tube is designated by (A) Radius of level tube (B) Length of level tube (C) Length of bubble of level tube (D) None of the above
Last Answer : (A) Radius of level tube
Description : If M, I, R, E, F, and Y are the bending moment, moment of inertia, radius of curvature, modulus of elasticity stress and the depth of the neutral axis at section, then (A) M/I = R/E = F/Y (B) I/M = R/E = F/Y (C) M/I = E/R = E/Y (D) M/I = E/R = Y/F
Last Answer : (C) M/I = E/R = E/Y
Description : The bed slope in slow sand filters, is generally kept (A) 1 in 50 (B) 1 in 75 (C) 1 in 100 (D) 1 : 200
Last Answer : (C) 1 in 100
Description : If degree of a road curve is defined by assuming the standard length of an arc as 30 metres, the radius of 1° curve is equal (A) 1719 m (B) 1146 m (C) 1046 m (D) 1619 m
Last Answer : Answer: Option A
Description : Inter-distance between ventilation columns in a sewer line is kept A. 25 to 50 m B. 50 m to 100 m C. 100 m to 150 m D. 150 m to 300 m
Last Answer : ANS: D
Description : A roller coaster reaches a velocity of 20 m/s at a location where the radius of curvature is 40 m. Calculate the acceleration in m/s2? a.10 b.9 c.11 d.8 e.107 dynes
Last Answer : a. 10
Description : M.I. of sphere of 0.5 m radius about a mutually perpendicular axis (Z-axis) when its M.I. about X-axis and Y-axis are 50 kgm2 and 50 kgm2 is a.50 Kgm2 b.Tapered bearing c.100 Kgm2 d.25 Kgm2 e.12.5 Kgm2
Last Answer : a. 50 Kgm2
Description : An automobile weighing 2800 lb and travelling at 30 miles/hr, hits a depression in the road which has a radius of curvature of 50 ft. What is the total force to which springs are subjected. a.8230 lb b.6170 lb c.2800 ib d.107 dynes e.3280 lb
Last Answer : b. 6170 lb
Description : Metric chains are generally available in (A) 10 m and 20 m length (B) 15 m and 20 m length (C) 20 m and 30 m length (D) 25 m and 100 m length
Last Answer : (C) 20 m and 30 m length
Description : The staff reading at a distance of 80 m from a level with the bubble at its centre is 1.31 m. When the bubble is moved by 5 divisions out of the centre, the reading is 1.39 m. The angular value of the one division of the bubble, is (A) 28.8 sec (B) 41.25 sec (C) 14.52 sec (D) 25.05
Last Answer : (B) 41.25 sec
Description : The spacing of tube wells should generally be more than ----------from the circle of influence a)10 metre b)50 metre c)100 metre* d) 500 metre
Last Answer : c)100 metre*
Description : An object 0.04 m high is placed at a distance of 0.8 m from a concave mirror of radius of curvature 0.4 m. find the position, nature and the size of t
Last Answer : An object 0.04 m high is placed at a distance of 0.8 m from a concave mirror of radius of ... the position, nature and the size of the image formed.
Description : Pick up the incorrect statement from the following. The super-elevation on roads is (A) Directly proportional to width of pavement (B) Directly proportional to velocity of vehicles (C) Inversely proportional to acceleration due to gravity (D) Inversely proportional to the radius of curvature
Description : The radius of curvature provided along a transition curve, is (A) Minimum at the beginning (B) Same throughout its length (C) Equal to the radius of circular curve (D) Varying from infinity to the radius of circular curve
Last Answer : Answer: Option D
Description : In an ideal transition curve, the radius of curvature (A) Is constant (B) At any point is directly proportional to its distance from the point of commencement (C) Is inversely proportional to the radius of main curve (D) Is directly proportional to the radius of main curve
Description : The maximum value of hoop compression in a dome is given by (A) wR / 4d (B) wR/2d (C) wR/d (D) 2wR/d Where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome
Last Answer : (B) wR/2d
Description : If 50 m point of a 100 m tape is 50 cm off line, and 50 m sections are straight, an error is generated equal to (A) 1/10,000 (B) 1/15,000 (C) 1/20,000 (D) 1/25,000
Last Answer : (C) 1/20,000
Description : A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water? (A) 10 m/sec (B) 25 m/sec (C) 2 m/sec (D) 50 m/sec
Description : The diameter of the column head support a flat slab, is generally kept (A) 0.25 times the span length (B) 0.25 times the diameter of the column (C) 4.0 cm larger than the diameter of the column (D) 5.0 cm larger than the diameter of the column
Last Answer : Option A
Description : A capillary tube is kept vertical in a beaker containing liquid. The height to which the liquid rises by capillary action is increased if (a) The radius of the capillary is large (b) The radius of the ... small (c) The density of the liquid is large (d) The surface tension of the liquid is small
Last Answer : Ans:(b)
Description : The tangent to the liquid surface in a level tube, is parallel to the axis of the level tube at (A) Every point of the bubble (B) Either end of the bubble (C) The mid-point of the bubble (D) No where
Last Answer : (C) The mid-point of the bubble
Description : The longitudinal section of the surface of bubble tube is (A) Straight (B) Circular (C) Parabolic (D) Elliptic
Last Answer : (B) Circular
Description : While rotating the theodolite in the horizontal plane, the bubble of the bubble tube takes up the same position in its tube, it indicates (A) The rotation axis is vertical (B) The trunnion ... (C) The line of collimation is perpendicular to vertical axis (D) None of the above
Last Answer : (A) The rotation axis is vertical
Description : For high sensivity of the bubble tube (A) A liquid of low viscosity is used (B) A liquid of low surface tension is used (C) The bubble space should be long (D) All the above
Last Answer : (D) All the above
Description : The bubble tube is nearly filled with (A) Alcohol or chloroform (B) A liquid which is very mobile (C) A liquid having low freezing point (D) All the above
Description : In an adjusted level, when the bubble is central, the axis of the bubble tube becomes parallel to (A) Line of sight (B) Line of collimation (C) Axis of the telescope (D) None of these
Last Answer : (A) Line of sight
Description : When the bubble of the level tube of a level, remains central (A) Line of sight is horizontal (B) Axis of the telescope is horizontal (C) Line of collimation is horizontal (D) Geometrical axis of the telescope is horizontal
Last Answer : (A) Line of sight is horizontal
Description : With the rise of temperature, the sensitivity of a bubble tube (A) Decreases (B) Increases (C) Remains unaffected (D) None of the above
Last Answer : (A) Decreases
Description : Consider the following pre-conditions for correct use of a theodolite: 1. The vertical axis need not be perpendicular to the plane of the plate level bubble. 2. The line of sight must be perpendicular to the horizontal axis. 3. The axis of ... ? (a) 1, 2, 3 & 4 (b) 2 only (c) 3 only (d) 1 & 4 only
Last Answer : (b) 2 only
Description : Width of the shoulders of carriage way is generally kept (A) 100 cm (B) 125 cm (C) 150 cm (D) 250 cm
Description : If S, L and R are the arc length, long chord and radius of the sliding circle then the perpendicular distance of the line of the resultant cohesive force, is given by (A) a = S.R/L (B) a = L.S/R (C) a = L.R/S (D) None of these
Last Answer : (A) a = S.R/L
Description : 14. An object 5 cm is placed at a distance of 20 cm in front of a convex mirror of radius of curvature 30 cm. Find the position, nature and size of the image. -Physics-10
Last Answer : Object distance (u) = - 20 cm Object height (h) = 5 cm Radius of curvature (R) = 30 cm Radius of curvature = 2 Focal length R = 2f f = 15 cm According to the mirror formula, ... image height indicates that the image formed is erect. Hence, the image formed is erect, virtual, and smaller in size.
Description : 1. Find the focal length of a convex mirror whose radius of curvature is 32 cm. -Physics-10
Last Answer : Radius of curvature (R) = 32 cm Radius of curvature = 2 × Focal length (f) R= 2f f = R/2 = 32/2 = 16 Therefore, the focal length of the given convex mirror is 16 cm.
Description : 2. The radius of curvature of a spherical mirror is 20 cm. What is its focal length? -Physics-10
Last Answer : Radius of curvature (R) = 20 cm Radius of curvature of the spherical mirror = 2 × Focal length (f) R = 2f f= R/2 = 20 / 2 = 10 Therefore, the focal length of the spherical mirror is 10 cm.
Description : An object is placed in front of a concave mirror of radius of curvature `40 cm` at a distance of `10 cm`. Find the position, nature and magnification
Last Answer : An object is placed in front of a concave mirror of radius of curvature `40 cm` at a ... Find the position, nature and magnification of the image.
Description : The following are true about the lens: a. the anterior capsule is 10 times thicker than the posterior capsule b. the anterior surface has a greater radius of curvature than the posterior surface c ... the cornea d. the lens is more effective in absorbing light with long than short wave-lengths
Last Answer : during accommodation the lens moves towards the cornea
Description : The intake opening is generally covered by a screen to prevent entry of debris etc. and its level is kept (A) At the level of water of the source (B) At the bottom of water of the source (C) At about 2.5 m above the bottom (D) None of these
Last Answer : (C) At about 2.5 m above the bottom
Description : Pickup the incorrect statement from the following: (A) The invert of pressure conduit is independent of the grade of the hydraulic gradient line (B) The pressure conduits may be taken uphill ... m (C) Aqueducts and tunnels sections are generally kept circular (D) None of these
Last Answer : (D) None of these
Description : Depth of reinforcement below the surface of a concrete pavement, is generally kept (A) 5 cm (B) 6 cm (C) 7 m (D) 9 m
Description : Depth of borings for soil investigation, is generally kept below low water level (A) 30 m (B) 35 m (C) 45 m (D) 40 m
Last Answer : (C) 45 m