Description : The screens are fixed A. Perpendicular to the direction of flow B. Parallel to the direction of flow C. At an angle 30° to 60° to the direction of flow D. None of these
Last Answer : ANS: C
Description : Pick up the correct statement from the following: A. The water supply pipes carry pure water free from solid particles B. The water supply pipes get clogged if flow velocity is less than self ... carried up and down the hills and valleys D. The sewer pipes are generally laid along level hills
Last Answer : ANS: A
Description : Which one of the following resists hydrogen sulphide corrosion? A. R.C.C. B. Glazed stone wares C. Asbestos cement D. Glazed ware
Last Answer : ANS: D
Description : The asbestos cement sewers are A. Light in weight B. Not structurally strong to bear large compressive stress C. Susceptible to corrosion by sulphuric acid D. All the above
Description : Q No: 78 Hume steel pipes are A. Steel pipes B. Steel shell coated from inside with cement mortar C. Steel shell coated from outside with cement mortar D. Both B. and C.
Description : An inverted siphon is designed generally for A. One pipe B. Two pipes C. Three pipes D. Four pipes
Description : Pick up the in-correct statement from the following: A. Manholes are provided in sewer pipes at suitable intervals B. Catch basins are generally provided in sewers for carrying drainage discharge C. Inlets are generally provided in all sewers D. None of these
Description : The angle of minimum deviation of an equiangular prism, having a refractive index of 1.732 is (a) 60° (b) 30° (c) 45° (d) 0°
Last Answer : Ans:(a)
Description : If the angle of incidence formed on a concave mirror at a point is 30° then the angle of reflection will be: (1) 15° (2) 30° (3) 60° (4) 90°
Last Answer : (2) 30° Explanation: The angle between the incident ray and the normal is known as the angle of inci dence. The angle between the reflected ray and the normal is known as the angle of reflection.
Description : The angle in which a cricket ball should be hit to travel maximum horizontal distance is : (1) 60° with horizontal (2) 45° with horizontal (3) 30° with horizontal (4) 15° with horizontal
Last Answer : (2) 45° with horizontal Explanation: This has to do with the equation of a parabola or trajectory which is z = (tane)x 2 cos 9) 2. We can see that if the ball is fired at a 45 degree angle from the ground, the horizontal distance will be a maximum.
Description : For determining the support reactions at A and B of a three hinged arch, points B and Care joined and produced to intersect the load line at D and a line parallel to the load line through A at D'. Distances AD, DD ... reactions at A and B is (A) 30° (B) 45° (C) 60° (D) 90
Last Answer : (D) 90
Description : The angle of intersection of a contour and a ridge line, is (A) 30° (B) 45° (C) 60° (D) 90°
Last Answer : (D) 90°
Description : A well conditioned triangle has no angle less than (A) 20° (B) 30° (C) 45° (D) 60°
Last Answer : (B) 30°
Description : The angle between two plane mirrors of optical square, is (A) 20° (B) 30° (C) 45° (D) 60°
Last Answer : (C) 45°
Description : If the long chord and tangent length of a circular curve of radius R are equal the angle of deflection, is (A) 30° (B) 60° (C) 90° (D) 120°
Last Answer : D
Description : ABCD is a regular parallelogram plot of land whose angle BAD is 60°. If the bearing of the line AB is 30°, the bearing of CD, is (A) 90° (B) 120° (C) 210° (D) 270°
Last Answer : (C) 210°
Description : A projectile is fired at an angle to the vertical. Its horizontal range will be maximum when is (A) 0° (B) 30° (C) 45° (D) 60°
Description : The maximum shear stress occurs on the filament which makes an angle with the horizontal plane equal to (A) 30° (B) 45° (C) 60° (D) 90
Last Answer : (B) 45°
Description : What is the value of included angle of a triangular notch for maximum discharge? (A) 30° (B) 60° (C) 90° (D) 120°
Last Answer : (C) 90°
Description : The angle between skew back of a flat arch and the horizontal, is kept approximately equal to (A) 0° (B) 30° (C) 60° (D) 90
Last Answer : Answer: Option C
Last Answer : 45° with horizontal
Description : 221 For non-scouring velocity 5 m/sec, the type of sewers generally preferred to, is A. Cast iron sewers B. Cement concrete sewers C. Glazed bricks sewers D. Stone ware sewers
Description : Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction (A) Along the plane (B) Horizontally (C) Vertically (D) At an angle equal to the angle of friction to the inclined plane
Last Answer : (D) At an angle equal to the angle of friction to the inclined plane
Description : In a residential colony, sewers of diameters 100 mm, 150 mm and 225 mm were laid with a gradient 1 in 120. Which portion of the sewage system does not choke in due course of time? A. 100 mm dia. B. 150 mm dia. C. 225 mm dia. D. All of these
Description : The sewers A. Must be of adequate size to avoid over flow B. Must flow under gravity ½ to ¾ full C. Must be laid at least 2 to 3 m deep to collect /water from the basements D. All the above
Description : Cast iron detachable joint is used in __________ pipes. (A) Steel (B) Cast iron (C) Asbestos cement (D) Reinforced cement concrete
Last Answer : (A) Steel
Description : Lead is poured into the joint between two- __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement
Last Answer : (C) Cast iron
Description : Lead is poured into the joint between two __________ pipes. (A) Mild steel (B) Concrete (C) Cast iron (D) Asbestos cement
Last Answer : Option C
Description : Aerobic activity is maximum A. In freshly produced sewage B. At sewer pipes C. In sewer treatment plants D. None of these
Description : Sewer pipes need be checked for A. Minimum flow B. Maximum flow C. Both A. and B. D. None of these
Description : In R.C. sewer pipes, the percentage longitudinal reinforcement to the cross-sectional area of concrete is kept A. 10.0 B. 5.0 C. 2.0 D. 0.25
Description : Which one of the following tests is used for testing sewer pipes? A. Water test B. Ball test C. Mirror test D. All of these
Description : The porosity of sediments in sewer pipes, is usually taken as A. 0.010 B. 0.011 C. 0.012 D. 0.013
Description : You are asked to design sewer pipes of diameters 0.4 m to 0.9 m at maximum flow, you will assume the sewer flow running at A. Full depth B. Half full C. Two third full D. Three fourth full
Last Answer : ANS: B
Description : For sewers, inverted siphon is provided for A. One pipe B. Two pipes C. Three pipes D. Four pipes
Description : Lead caulked joints are used for laying A. Stone ware pipes B. Earthenware pipes C. C.I. pipes D. G.I. pipes
Description : Stone ware pipes are A. Highly resistant to sulphide corrosion B. Highly impervious C. Hydraulically efficient because of their smooth interior surface D. Especially suited to pressure pipes
Description : Hydraulic mean radius is A. Mean radius of sewer B. Difference in heads between two points in circular pipes C. Mean of radii in a pipe line of varying cross -sections D. Cross-sectional area/wetted perimeter
Description : ¾th or ¼th extra space is left in sewer pipes at maximum discharge for A. Low estimates of the average and maximum flows B. Large scale infiltration of storm water C. Unexpected increase in population D. All the above
Description : Sewer pipes are designed for maximum discharge with 25% to 33% vacant cross-sectional area for A. Unexpected large scale infiltration of stream water B. Unexpected increase in the population C. Under estimates of maximum and average flows D. All of the above
Description : The sewer pipes A. Carry sewage as gravity conduits B. Are designed for generating self-cleansing velocities at different discharge C. Should resist the wear and tear caused due to abrasion D. All the above
Description : For drainage pipes in buildings the test applied before putting them to use, is A. Water test B. Smoke test C. Straightness test D. All the above
Description : Pick up the correct statement from the following: A. The sewer pipes of sizes less than 0.4 m diameter are designed as running full at maximum discharge B. The sewer pipes of sizes greater than 0.4 m ... discharge C. The minimum design velocity of sewer pipes is taken as 0.8 m/sec D. All the above
Description : The shadow of a tower standing on level ground is found to be 40 m longer when the Sun’s altitude is 30° than when it is 60°. Find the height of the tower. -Maths 9th
Last Answer : this is the answer
Description : For a parallel load on a fillet weld of equal legs, the plane of maximum shear occurs at (a) 22.5° (b) 30° (c) 45° (d) 60°
Last Answer : (c) 45°
Description : The value of 2 tan 2 45°+ cos 2 30° − sin 2 60° is (a) 0 (b) 1 (c) -2 (d) 2
Last Answer : (d) 2
Description : sin 2A = 2 sin A is true when A = a 30° b 45° c 0° d 60°
Last Answer : a 0
Description : The value of sin 60° cos 30° + sin 30° cos 60° is: a 0 b 1 c 2 d 4
Last Answer : b 1
Description : The bearing of C from A is N 30° E and from B, 50 metres east of A, is N 60° W. The departure of C from A is (A) 50 m (B) 50 m (C) 25 m (D) 25 m
Last Answer : (D) 25 m
Description : The zone in which transverse bending is likely to occur may be obtained by drawing a line from the (A) 30° (B) 45° (C) 60° (D) None of these
Last Answer : Answer: Option B