Description : According to the recommendations of IS : 456-1978, the expansion joints (A) Are provided where plane changes abruptly (B) Are provided to ensure minimum resistance (C) Do not carry reinforcement across them (D) All the above
Last Answer : Answer: Option D
Description : According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than (A) 20 cm (B) 30 cm (C) 40 cm (D) 75 cm
Last Answer : Answer: Option B
Description : According to IS:456-1978, the spacing of stirrups shall not exceed a distance ______the leverarm of the resisting moment. (a) Equal to (b) Two times (c) Three times (d) All the above
Last Answer : (a) Equal to
Description : Nominal cover for M30 grade concrete in moderate exposure is (as per IS:456-2000) [ A ] 20 mm [ B ] 30 mm [ C ] 45 mm [ D ] 50 mm
Last Answer : [ B ] 30 mm
Description : As per I.S. 456 - 1978, the pH value of water shall be (A) Less than 6 (B) Equal to 6 (C) Not less than 6 (D) Equal to 7
Last Answer : Answer: Option C
Description : As per IS :456-1978, the permissible value of bond – stress for M15 grade of concrete is (a) 0.5 N/mm2 (b) 1 N/mm2 (c) 1.5 N/mm2 (d) 2 N/mm2
Last Answer : (b) 1 N/mm2
Description : As per IS:456-1978, the concrete mixes are designated into (a) 4 grades (b) 5 grades (c) 6 grades (d) 7 grades
Last Answer : (d) 7 grades
Description : Expansion joints are provided if the length of concrete structures exceeds (A) 10 m (B) 15 m (C) 15 m (D) 45 m
Description : According to I.S.: 456, 1978 the thickness of reinforced concrete footing on piles at its edges, is kept less than (A) 5 cm (B) 10 cm (C) 15 cm (D) 20 cm
Description : Expansion Joints in masonry walls are provided in wall lengths usater than (A) 10 m (B) 20 m (C) 30 m (D) 40 m
Description : Expansion joints in masonry walls are provided if length exceeds (A) 10 m (B) 20 m (C) 30 m (D) 40 m
Description : Which of the following grade is not recommended by IS 456-1978? (a) M10 (b) M20 (c) M40 (d) M55
Last Answer : (d) M55
Description : According to IS: 456, maximum water-cement ratio should be [ A ] 0.45 [ B ] 0.55 [ C ] 0.65 [ D ] 0.75
Last Answer : [ B ] 0.55
Description : Construction joints are provided (A) Where B.M. and S.F. are small (B) Where the member is supported by other member (C) At 18 m apart in huge structures (D) All the above
Last Answer : (D) All the above
Description : A gun fires shell with a muzzle velocity of 600 m/sec. The angle of inclination of the gun so that the shell hits a target at a distance of 32 km at level 100 m higher than the gun would be approximately? a.60? b.45? c.30? d.15? e.Either of (A) and (C)
Last Answer : e. Either of (A) and (C)
Description : The distance between two cities A and B is 330 km. A train starts from A at 8 a.m. and travels towards B at 60 km/hr. Another train starts from B at 9 a.m. and travels towards A at 75 km/hr. At what time do they meet? A.10:30 am B.10:45 am C.11 am D.11:25 am E.None of these
Last Answer : Answer – C (11 am) Explanation – Suppose they meet x hrs after 8 a.m. Then, (Distance moved by first in x hrs) + [Distance moved by second in (x-1) hrs] = 330 60x + 75(x – 1) = 330 x = 3 So, they meet at (8 + 3), i.e. 11 a.m
Description : As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise. (A) 110 (B) 85 (C) 60 (D) 45
Last Answer : (B) 85
Description : As per IS:456, maximum shear stress for M20 glade concrete in working stress method is [ A ] 1.6 N/mm2 [ B ] 1.8 N/mm2 [ C ] 2.0 N/mm2 [ D ] 2.2 N/mm2
Last Answer : [ B ] 1.8 N/mm2
Description : As per IS: 456-2000, the maximum size of aggregate is [ A ] 1/4 of maximum thickness of member [ B ] 1/4 of minimum thickness of member [ C ] 1/5 of maximum thickness of member [ D ] 1/5 of minimum thickness of member
Last Answer : [ B ] 1/4 of minimum thickness of member
Description : As per IS: 456, permissible direct compressive stress M20 grade concrete in working stress method of designer [ A ] 5.0 N/mm2 [ B ] 7.0 N/mm2 [ C ] 10.0 N/mm2 [ D ] 20.0 N/mm2
Last Answer : [ A ] 5.0 N/mm2
Description : According to I.S. : 456 specifications, the safe diagonal tensile stress for M 150 grade concrete, is (A) 5 kg/cm2 (B) 10 kg/cm2 (C) 15 kg/cm2 (D) 20 kg/cm
Last Answer : Answer: Option A
Description : A train moving at 60 kilometers per hour is struck by a bullet moving 1000 m/sec at right angles to the train. The direction with which the bullet appears to strike the train would be a.75? b.60? c.22 d.30? e.45?
Last Answer : e. 45?
Description : A hollow shaft of 1 m length is designed to transmit a power of 30 kW at 700 rpm. The maximum permissible angle of twist in the shaft is 1o. The inner diameter of the shaft is 0.7 times the outer diameter. The modulus of ... shaft is _______. (a) 43 to 45 (b) 50to 60 (c) 70 to 80 (d) 85 to 100
Last Answer : (a) 43 to 45
Description : If the difference in elevation of an edge of the pavement 9 m wide and its crown is 15 cm, the camber of the pavement, is (A) 1 in 60 (B) 1 in 45 (C) 1 in 30 (D) 1 in 15
Description : An exceptional grade may be provided upto 1 in 12 along hill roads, if the length does not exceed (A) 45 m per km (B) 60 m per km (C) 75 m per km (D) 90 m per km
Description : Joints in concrete structures, are provided (A) To reduce the tensile stresses likely to be developed due to evaporation of water (B) To minimise the change in the dimensions of the slab (C) To minimise the necessary cracking (D) All the above
Description : Steel pipe are (A) Suitable for withstanding high internal pressure (B) Connected by riveted or welded joints (C) Generally laid underground and no expansion joint is required (D) Likely to last 100 years under ordinary conditions
Last Answer : (D) Likely to last 100 years under ordinary conditions
Description : Tie bars in cement concrete pavements are at (A) Expansion joints (B) Contraction joints (C) Warping joints (D) Longitudinal joints
Description : Pick up the correct statement from the following: (A) Construction joints are necessarily planned for their locations (B) Expansion joints are provided to accommodate thermal expansion (C) Construction joints are provided to control shrinkage cracks (D) All the above
Description : Plastic bitumen is generally used for (A) Road pavements (B) Expansion joints (C) Crack fillings (D) None to these
Description : S code for Steel structures is a) IS 236 b) IS 226 c) IS 456 d) IS 800*
Last Answer : d) IS 800*
Description : If a 30 m chain diverges through a perpendicular distance d from its correct alignment, the error in length, is (A) (d²/60) m (B) (d²/30) m (C) (d²/40) m (D) (d/30) m
Last Answer : (A) (d²/60) m
Description : The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is A. 20 m B. 30 m C. 45 m D. 75 m
Last Answer : ANS: C
Description : Find the angle at which the potential due a dipole is measured, when the distance from one charge is 12cm and that due to other is 11cm, separated to each other by a distance of 2cm. a) 15 b) 30 c) 45 d) 60
Last Answer : d) 60
Description : Last flag man is deputed at which distance from last detonator during protection of welding site . (i) 30 mts (ii) 50 mts (iii) 45 (iv) 60 mts
Last Answer : (iv) 60 mts
Description : The normal road width of National and State highways (A) Is kept 45 m (B) In plain and rolling terrain built-up area, is 30 m (C) In mountainous built-up area is 20 m (D) All the above
Description : The normal road land width for a National or State highway, in open areas should be (A) 45 m (B) 30 m (C) 24 m (D) 20 m
Description : The maximum allowable Los Angeles abrasion value for high quality surface course is (A) 10 % (B) 20 % (C) 30 % (D) 45 %
Description : When a number of hair pin bends are introduced, a minimum intervening distance in between is kept (A) 20 m (B) 40 m (C) 60 m (D) 100 m
Description : The maximum spacing of contraction joints in rigid pavements is (A) 2.5 m (B) 3.5 m (C) 4.5 m (D) 5.5 m
Description : The difference in the reservoir level and the lowest point of the water mains is 180 m. The expected pressure due to water hammer is 7.5 kg/cm2 in a pressure conduit of diameter 1 m. Assuming the efficiency of the ... , is (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm
Last Answer : (C) 20 mm
Description : The construction joints in buildings are provided after (A) 10 m (B) 15 m (C) 20 m (D) 40 m
Description : A jet of water of cross-sectional area 20 sq. cm impinges on a plate at an angle of 60? with a velocity of 10 m/sec. Neglecting the friction between the jet and plate (density of water 1000/9.81 kgm-1 sec2 per cubic meter), the ... a.15 - 20 kg b.20 - 25 kg c.5 - 10 kg d.25 - 30 kg e.10 - 15 kg
Last Answer : a. 15 - 20 kg
Description : A pile of length carrying a uniformly distributed load per metre length is suspended at the centre and from other two points 0.15 L from either end ; the maximum hogging moment will be (A) WL²/15 (B) WL²/30 (C) WL²/60 (D) WL²/90
Description : A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be (A) 8 kN.m (B) 15 kN.m (C) 30 kN.m (D) 60 kN.m
Last Answer : (C) 30 kN.m
Description : As per IS : 456, the reinforcement in a column should not be less than (A) 0.5% and not more than 5% of cross-sectional area (B) 0.6% and not more than 6% of cross-sectional area (C) 0.7% and not more than 7% of cross-sectional area (D) 0.8% and not more than 8% of cross-sectional area
Description : As per IS: 456, permissible bond stress for plain bars in tension, in working stress method, where M20, is the grade of concrete [ A ] 0.6 N/mm2 [ B ] 0.8 N/mm2 [ C ] 1.0 N/mm2 [ D ] 1.2 N/mm2
Last Answer : [ B ] 0.8 N/mm2