Description : For a longitudinal reinforcing bar in a column, the minimum cover shall neither be less than the diameter of bar nor less than (A) 15 mm (B) 25 mm (C) 30 mm (D) 40 mm
Last Answer : Answer: Option D
Description : Minimum clear cover (in mm) to the main steel bars in slab, beam, column and footing respectively, are (a) 10, 15, 20 and 25 (b) 15, 25, 40 and 75 (c ) 20, 25, 30 and 40 (d) 20, 35, 40 and 75
Last Answer : (b) 15, 25, 40 and 75
Description : Select the incorrect statement from the following [ A ] Reinforcing bars in a column should not be less than 12 mm in diameter [ B ] The number of longitudinal bars in a circular column should not ... The minimum percentage of longitudinal steel in columns should be 0.8% [ D ] None of the above
Last Answer : [ B ] The number of longitudinal bars in a circular column should not exceed four
Description : A spring of mean radius 40 mm contains 8 action coils of steel (N = 80000 N/mm2 ), 4 mm in diameter. The clearance between the coils being 1 mm when unloaded, the minimum compressive load to remove the clearance, is (A) 25 N (B) 30 N (C) 35 N (D) 40 N
Last Answer : (C) 35 N
Description : The minimum thickness of the cover at the end of a reinforcing bar should not be less than twice the diameter of the bar subject to a minimum of (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm
Description : The minimum cover in a slab should neither be less than the diameter of bar nor less than (A) 10 mm (B) 15 mm (C) 25 mm (D) 13 mm
Last Answer : Answer: Option B
Description : The minimum diameter of longitudinal bars in a column is (A) 6 mm (B) 8 mm (C) 12 mm (D) 16 mm
Last Answer : Answer: Option C
Description : Which of the following statements is incorrect? (A) Minimum cross sectional area of longitudinal reinforcement in a column is 0.8% (B) Spacing of longitudinal bars measured along the periphery of ... (D) The number of longitudinal bars provided in a circular column should not be less than four
Description : Minimum pitch of transverse reinforcement in a column is (A) The least lateral dimension of the member (B) Sixteen times the smallest diameter of longitudinal reinforcement bar to be tied (C) Forty-eight times the diameter of transverse reinforcement (D) Lesser of the above three values
Description : The minimum clear cover for R.C.C. columns shall be (A) Greater of 40 mm or diameter (B) Smaller of 40 mm or diameter (C) Greater of 25 mm or diameter (D) Smaller of 25 mm or diameter
Description : The minimum diameter of longitudinal steel should be [ A ] 10 mm [ B ] 12 mm [ C ] 16 mm [ D ] 20 mm
Last Answer : [ B ] 12 mm
Description : In slump test, each layer of concrete is compacted by a steel rod 60 cm long and of 16 mm diameter for (A) 20 times (B) 25 times (C) 30 times (D) 50 time
Description : The diameter of longitudinal bars of a column should never be less than (A) 6 mm (B) 8 mm (C) 10 mm (D) 12 mm
Description : If the diameter of longitudinal bars of a square column is 16 mm, the diameter of lateral ties should not be less than (A) 4 mm (B) 5 mm (C) 6 mm (D) 8 mm
Description : A steel bar 20 mm in diameter simply-supported at its ends over a total span of 40 cm carries a load at its centre. If the maximum stress induced in the bar is limited to N/mm2, the bending strain energy stored in the ... (A) 411 N mm (B) 511 N mm (C) 611 N mm (D) 711 N mm
Last Answer : (C) 611 N mm
Description : According to IS: 456 -2000, the spacing of links in a Column should be less than [ A ] 16 x diameter of smallest longitudinal bar [ B ] 24 x diameter of smallest longitudinal bar [ C ] 48 x diameter of smallest longitudinal bar [ D ] 48 x diameter of greatest longitudinal bar
Last Answer : [ A ] 16 x diameter of smallest longitudinal bar
Description : An R.C.C. column of 30 cm diameter is reinforced with 6 bars 12 mm placed symmetrically along the circumference. If it carries a load of 40, 000 kg axially, the stress is (A) 49.9 kg/cm2 (B) 100 kg/cm2 (C) 250 kg/cm2 (D) 175 kg/cm
Last Answer : Answer: Option A
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 : According to IS:456, the diameter of the helices in circular a column shall be at least [ A ] The diameter of longitudinal steel [ B ] One-half the diameter of longitudinal steel [ C ] One-fourth the diameter of longitudinal steel [ D ] Three-fourth the diameter of longitudinal steel
Last Answer : [ C ] One-fourth the diameter of longitudinal steel
Description : The diameter of the Links in column should be at least……….of the largest diameter of the longitudinal steel [ A ] One-half [ B ] Three-fourth [ C ] One eighth [ D ] One – fourth
Last Answer : [ D ] One – fourth
Description : A steel bar 5 m × 50 mm is loaded with 250,000 N. If the modulus of elasticity of the material is 0.2 MN/mm2 and Poisson's ratio is 0.25, the change in the volume of the bar is: (A) 1.125 cm3 (B) 2.125 cm3 (C) 3.125 cm3 (D) 4.125 cm
Last Answer : (C) 3.125 cm
Description : Minimum percentage of longitudinal steel in a column should not be less than [ A ] 0.60% [ B ] 0.80% [ C ] 1.00% [ D ] 1.20%
Last Answer : [ B ] 0.80%
Description : The minimum cover to the ties or spirals should not be less than (A) 15 mm (B) 20 mm (C) 25 mm (D) 50 mm
Description : The diameter of ties in a column should be (A) More than or equal to one fourth of diameter of main bar (B) More than or equal to 5 mm (C) More than 5 mm but less than one-fourth of diameter of main bar (D) More than 5 mm and also more than one-fourth of diameter of main bar
Description : Minimum cover for fire resistance for a given simply supported beam, when the fire rating is 1 hour--------- [ A ] 15 mm [ B ] 20 mm [ C ] 25 mm [ D ] 30 mm
Last Answer : [ B ] 20 mm
Description : The diameter of the Vicat plunger is 10 mm and its length varies from (A) 20 mm to 30 mm (B) 30 mm to 40 mm (C) 40 mm to 50 mm (D) 50 mm to 60 mm
Description : If the width of a pavement slab is 7.5 m, thickness 20 cm and working stress 1400 kg/cm2 , spacing of 10 mm tie bars for the longitudinal joint, is (A) 10 cm (B) 20 cm (C) 30 cm (D) 40 cm
Description : The development length of bars in compression is taken as [ A ] 30 times bar diameter [ B ] 40 times bar diameter [ C ] 50 times bar diameter [ D ] 12 times bar diameter
Last Answer : [ A ] 30 times bar diameter
Description : The Minimum pitch of the helical reinforcement in circular columns should be [ A ] 25 mm [ B ] 40 mm [ C ] 50 mm [ D ] 60 mm
Last Answer : [ A ] 25 mm
Description : For Unbraced column, the ratio of the clear height of the column to the minimum dimension of the column shall not exceed [ A ] 30 [ B ] 40 [ C ] 50 [ D ] 60
Last Answer : [ A ] 30
Description : In order to avoid the material failure in a braced column, the clear distance between restraints should never exceed [ A ] 30 times the minimum dimensions of the column [ B ] 40 times the minimum ... 50 times the minimum dimensions of the column [ D ] 60 times the minimum dimensions of the column
Last Answer : [ D ] 60 times the minimum dimensions of the column
Description : If aggregates completely pass through a sieve of size 75 mm and are retained on a sieve of size 60 mm, the particular aggregate will be flaky if its minimum dimension is less than (A) 20.5 mm (B) 30.5 mm (C) 40.5 mm (D) 50.5 mm
Description : The main reinforcement of a R.C. slab consists of 10 mm bars at 100 mm spacing; if it is desired to replace the 10 mm bars by 12 mm bars, then the spacing of 12mm bars should be (a) 120 mm (b) 140 mm (c ) 144 mm (d) 160mm
Last Answer : (c ) 144 mm
Description : In any case, the minimum diameter of the link in a column, according to IS:456-2000 is [ A ] 5 mm [ B ] 6 mm [ C ] 8 mm [ D ] 10 mm
Last Answer : [ B ] 6 mm
Description : The Minimum bar spacing should not be less than [ A ] Diameter of the largest bar [ B ] Maximum size of aggregate [ C ] Greater of diameter of the largest bar and maximum size of aggregate [ D ] Greater of diameter of the largest bar and maximum size of aggregate plus 5 mm
Last Answer : [ D ] Greater of diameter of the largest bar and maximum size of aggregate plus 5 mm
Description : The diameter of bars used for distribution reinforcement in slabs, may vary from (a) 2 to 4mm (b) 4 to 6mm (c) 6mm to 8mm (d) 8 to 12mm
Last Answer : (c) 6mm to 8mm
Description : The Maximum spacing of the longitudinal bars measured long the periphery of the column should be [ A ] 250 mm [ B ] 300 mm [ C ] 400 mm [ D ] 450 mm
Last Answer : [ B ] 300 mm
Description : A cantilever shaft having 50 mm diameter and length of 300 mm has a disc of mass 100 kg at its free enD. The Young’s modulus for the shaft material is 200 GN/m 2 . Calculate the natural longitudinal frequency in Hz. A. 575B. 625 C. 525 D. 550
Last Answer : A. 575
Description : A cantilever shaft having 50 mm diameter and length of 300 mm has a disc of mass 100 kg at its free end. The Young’s modulus for the shaft material is 200 GN/m 2 . Calculate the natural longitudinal frequency in Hz. a) 575 b) 625 c) 525 d) 550
Last Answer : a) 575
Description : Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2.k), when the insulation thickness is __________ mm. (A) 15 (B) 25 (C) 10 (D) 30
Last Answer : (B) 25
Description : A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is: (A) 4.0 mm (B) 4.5 mm (C) 5.0 mm (D) 5.5 mm
Last Answer : (C) 5.0 mm
Description : The spacing of transverse reinforcement of column is decided by the following consideration. (A) The least lateral dimension of the column (B) Sixteen times the diameter of the smallest longitudinal ... column (C) Forty-eight times the diameter of transverse reinforcement (D) All the above
Description : What is the shear stress acting on the outer surface of a hollow shaft subjected to a torque of 100 Nm?(The inner and outer diameter of the shaft is 15 mm and 30 mm respectively.) a. 50.26 N/mm2 b. 40.24 N/mm2 c. 20.120 N/mm2 d. 8.74 N/mm2
Last Answer : c. 20.120 N/mm2
Description : If the effective length of a 32 cm diameter R.C.C. column is 4.40 m, its slenderness ratio, is (A) 40 (B) 45 (C) 50 (D) 55
Description : The diameter of the Vicat plunger is 10 mm and its length varies form [ A ] 40 mm [ B ] 50 mm [ C ] 55 mm [ D ] 60 mm
Last Answer : [ B ] 50 mm
Description : In finish machining of an island on a casting with CNC milling machine, an end mill with 10 mm diameter is employed. The corner points of the island are represented by (0, 0), (0, 30), (50, 30) and (50, 0). By applying cutter radius right ... , 5), (5, 5) d.(5, 5), (45, 5), (45, 25), (5, 25), (5, 5)
Last Answer : a.(-5, 0), (-5, 35), (55, 35), (55,-5), (-5,-5)
Description : If Ac , Asc and A are areas of concrete, longitudinal steel and section of a R.C.C. column and m and c are the modular ratio and maximum stress in the configuration of concrete, the strength of column is (A) cAc + m cAsc (B) c (A - Asc) + m cAsc (C) c [A + (m - 1)ASC] (D) All the above
Description : Maximum percentage of longitudinal steel in a column should be less than [ A ] 6% [ B ] 8% [ C ] 9% [ D ] 10%
Last Answer : [ B ] 8%