Description : The anchorage value of a hook is assumed sixteen times the diameter of the bar if the angle of the bend, is (A) 30° (B) 40° (C) 45° (D) All the above
Last Answer : Answer: Option D
Description : The anchorage value of the hook for a mild steel bar is generally considered as (d = diameter of bar) [ A ] 8 d [ B ] 16 d [ C ] 32 d [ D ] 48 d
Last Answer : [ B ] 16 d
Description : The stiffness of the close coil helical spring is (A) d 4N/8D 3n (B) d 4N/4D 3n (C) 4D 3N/d 4n (D) 8D 3N/d 4n
Last Answer : (A) d 4N/8D 3n
Description : End anchorage of bars is taken as the greater of [ A ] Effective depth or 12 times the diameter of bar [ B ] Effective depth or 16 times the diameter of bar [ C ] Effective depth of 24 times the diameter of bar [ D ] Effective depth of 48 times the diameter of bar
Last Answer : [ A ] Effective depth or 12 times the diameter of bar
Description : The greatest eccentricity which a load W can have without producing tension on the cross-section of a short column of external diameter D and internal diameter d, is (A) 4W/ (D² - d²) (B) (D² - d²)/32D (C) (D² + d²)/8D (D) (D² - d²)/8D
Last Answer : (C) (D² + d²)/8D
Description : The length of lap in tension reinforcement should not be less than the bar diameter × (actual tension / four times the permissible average bond stress) if it is more than (A) 18 bar diameters (B) 24 bar diameters (C) 30 bar diameters (D) 36 bar diameters
Last Answer : Answer: Option C
Description : Minimum spacing between horizontal parallel reinforcement of different sizes, should not be less than (A) One diameter of thinner bar (B) One diameter of thicker bar (C) Twice the diameter of thinner bar (D) None of these
Last Answer : Answer: Option B
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 : A reinforced concrete slab is 75 mm thick. The maximum size of reinforcement bar that can be used is (a) 6 mm diameter (b) 8 mm diameter (c) 10 mm diameter (d) 12 mm diameter
Last Answer : (b) 8 mm diameter
Description : The radius of a bar bend to form a hook, should not be less than (A) Twice the diameter (B) Thrice the diameter (C) Four times the diameter (D) Five times the diameter
Last Answer : Answer: Option A
Description : The length of the straight portion of a bar beyond the end of the hook, should be at least (A) Twice the diameter (B) Thrice the diameter (C) Four times the diameter (D) Seven times the diameter
Description : The length of bar necessary to develop the full strength of the bar is called [ A ] Bond [ B ] Development length [ C ] End anchorage [ D ] Splicing
Last Answer : [ B ] Development length
Description : Calculate logarithmic decrement if damping factor is 0.33. A 1.36 B 3.23 C 5.16D 2.19
Last Answer : D 2.19
Description : A sensor is exposed for time t to a lamp of power P placed at a distance l. The sensor has an opening that is 4d in diameter. Assuming all energy of t
Last Answer : A sensor is exposed for time t to a lamp of power P placed at a distance l. The sensor has an opening that is 4d ... N=(P lambda d^(2) t)/(hc l^(2))`
Description : Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd' (A) d (B) 0.5 d (C) 2d (D) 4d
Last Answer : (B) 0.5 d
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 the diameter of the main reinforcement in a slab is 16 mm, the concrete cover to main bars is (A) 10 mm (B) 12 mm (C) 14 mm (D) 16 mm
Description : The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than (A) 4 mm (B) 5 mm (C) 6 mm (D) 7 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 : Minimum spacing between horizontal parallel reinforcement of the same size should not be less than (A) One diameter (B) 2.5 diameters (C) 3 diameters (D) 3.5 diameters
Description : Lapped splices in tensile reinforcement are generally not used for bars of size larger than (A) 18 mm diameter (B) 24 mm diameter (C) 30 mm diameter (D) 36 mm diameter
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 : 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 diameter of bars for main reinforcement in slabs, may be (a) 2 to 4mm (b) 4 to 8mm (c) 8 to 14mm (d) 14 to 18mm
Last Answer : (c) 8 to 14mm
Description : The spacing of stirrups in doubly reinforced beams should be least of the following (i)Least Lateral dimension (ii)Sixteen times the diameter of longitudinal steel (iii)Forty eight times the diameter of transverse reinforcement [ A ] i [ B ] i and ii [ C ] i and iii [ D ] i, ii and iii
Last Answer : [ D ] i, ii and iii
Description : If `(3a+4b):(3a-4b)=(3c+8d):(3c-8d),` then which of the following is true?
Last Answer : If `(3a+4b):(3a-4b)=(3c+8d):(3c-8d),` then which of the following is true? A. ad=bc B. 2ad=bc C. 2ab=cd D. ab=cd
Description : Number of bits per symbol used in Baudot code is a. 7 b. 5 c. 8 d. 9
Last Answer : 5
Description : If `(a)/(b)=(c)/(d)=(e)/(f)=(3)/(4)`, then what is the value of `(3a-4c-e)/(3b-4d-f)`?
Last Answer : If `(a)/(b)=(c)/(d)=(e)/(f)=(3)/(4)`, then what is the value of `(3a-4c-e)/(3b-4d-f)`?
Description : Pick up the correct statement from the following: (A) The artificial barrier constructed to enclose "n area for safe anchorage, is called break water (B) The smoothened surface at the top end of ... fending (C) The effective berthing lengths of inclined guays can be adjusted (D) All the above
Last Answer : (D) All the above
Description : Pick up the correct statement from the following: (A) An artificial barrier which makes the enclosed area safe for anchorage of ships, is known as break water (B) The break water whose inside is used ... wall is governed by the length of the largest vessel likely to be berthed (D) All the above
Description : Inc case of prestressed concrete members, the bursting stresses develop at (a) Bond zone (b) Maximum bending moment zone (c ) Maximum shear stress zone (d) Anchorage zone
Last Answer : (d) Anchorage zone
Description : The ultimate average anchorage bond stress for plain bars in tension is _______ if the grade of concrete is M20 [ A ] 1.60 N/mm2 [ B ] 1.92 N/mm2 [ C ] 2.24 N/mm2 [ D ] 2.40 N/mm2
Last Answer : [ B ] 1.92 N/mm2
Description : In an over-reinforced section (a) Steel reinforcement is not fully stressed to its permissible value (b) Concrete is not fully stressed to its permissible value (c) Either (a) and (b) (d) Both (a) and (b)
Last Answer : (a) Steel reinforcement is not fully stressed to its permissible value
Description : The deflection of a uniform circular bar of diameter d and length , which extends by an amount under a tensile pull , when it carries the same load at its mid-span, is (A) el/2d (B) e²l/3d² (C) el²/3d² (D) e²l²/3d
Last Answer : (C) el²/3d
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 : If the average bending stress is 6 kg/cm2 for M 150 grade concrete, the length of embedment of a bar of diameter d according to I.S. 456 specifications, is (A) 28 d (B) 38 d (C) 48 d (D) 58 d
Description : If Sb, is the average bond stress on a bar of diameter subjected to maximum stress , the length of the embedment is given by (A) l = dt/Sb (B) l = dt/2Sb (C) l = dt/3Sb (D) l = dt/4S
Last Answer : Answer: Option D Answer: Option D
Description : The length of the lap in a compression member is kept greater than bar diameter x (Permissible stress in bar / Five times the bond stress) or (A) 12 bar diameters (B) 18 bar diameters (C) 24 bar diameters (D) 30 bar diameters
Description : If d is the diameter of a bar, ft is allowable tensile stress and fb, is allowable bond stress, the bond length is given by (A) ft .d/4fb (B) ( /4). (ft .d/fb) (C) ft .d²/fb (D) ( /4). (ft .d 3 /fb)
Description : The maximum diameter of a bar used in a ribbed slab, is (A) 12 mm (B) 6 mm (C) 20 mm (D) 22 mm
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 : 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
Description : Ultimate strength of cold drawn high steel wires (A) Increases with increase in diameter of bar (B) Decreases with increase in diameter of bar (C) Does not depend on diameter of bar (D) None of the above
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
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 : The clear cover in a simply supported slab should not be less than the diameter of the reinforcing bar (a) Correct (b) Incorrect’ (c) Not known (d) None of these
Last Answer : (a) Correct