The eccentricity (e) of a hollow circular column, external diameter 25 cm, internal diameter 15 cm
for an eccentric load 100 t for non-development of tension, is
(A) 2.75 cm
(B) 3.00 cm
(C) 3.50 cm
(D) 4.25 cm
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 frame consists of a steel beam welded rigidly to two vertical channels. An eccentric exciter weighing 250 N is attached to the beam, which weighs 10 KN and is used to excite the frame. The unbalance weight of ... ends, magnification factor at resonance is A. 307.5 B. 3.075 C. 30.75 D. 0.3075
Last Answer : C. 30.75
Description : The polar moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter of 6 cm will be a.137.5 cm4 b.107 dynes c.275 cm4 d.550 cm4 e.1100 cm4
Last Answer : c. 275 cm4
Description : The ratio of the moments of resistance of a solid circular shaft of diameter D and a hollow shaft (external diameter D and internal diameter d), is (A) D 4 /(D 4 - d 4 ) (B) D 3 /(D 3 - d 3 ) (C) (D 4 - d 4 )/D 4 (D) (D 3 - d 3 )/D 3
Last Answer : (A) D 4 /(D 4 - d 4 )
Description : The moment of inertia of a hollow circular section whose external diameter is 8 cm and interial diameter is 6 cm about the axis passing through its centre is a.66.8 cm4 b.137.5 cm4 c.550 cm4 d.33.4 cm4 e.275 cm4
Last Answer : b. 137.5 cm4
Description : The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2 , the permissible maximum crippling load will be (A) 1.288 tonnes (B) 12.88 (C) 128.8 tonnes (D) 288.0
Last Answer : (B) 12.88
Description : Two columns 50 cm 50 cm and 60 cm 60 cm carry 80 tonnes and 120 tonnes of loads respectively. The centre to centre distance between columns is 5.00 metres. The permissible bearing capacity of the soil is 20 t ... the foundation slab = 7.00 m (C) Area of footing slab = 11.00 m2 (D) All the above
Last Answer : Option D
Description : The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose endsare hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2, the permissible maximumcrippling load will be (a) 1.288 tonnes (b) 12.88 (c) 128.8 tonnes (d) 288.0
Last Answer : (b) 12.88
Description : The width b and depth d of a beam cut from a wooden cylindrical log of 100 cm diameter for maximum strength are: (A) b = 57.73 cm d = 81.65 cm (B) b = 81.65 cm d = 57.73 cm (C) b = 50.00 cm d = 50.00 cm (D) b = 40.00 cm d = 80.00 cm
Last Answer : (A) b = 57.73 cm d = 81.65 cm
Description : The maximum non-verticality of the bore of a well 200 m deep, may be permitted up to (A) 25 cm (B) 50 cm (C) 75 cm (D) 100 cm
Last Answer : (D) 100 cm
Description : Pick up the correct statement from the following: (A) The distance of the eccentric axial load from the C.G. beyond which tension develops, is known as kern distance (B) In visco ... (C) An orthotropic material has different properties in three mutually perpendicular directions (D) All the above
Last Answer : (D) All the above
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 : A spherical pressure vessel is made of thin magnesium plate 0.25 cm thick. The main diameter of the sphere is 600 cm and allowable stress in tension is 900 kg/cm2. The safe internal gas pressure for the vessel would be a) 0.5 kg/cm2 b) 1.5 kg/cm2 c) 4.5 kg/cm2 d) 5.7 kg/cm2
Last Answer : b) 1.5 kg/cm2
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 : For keeping the stress wholly compressive the load may be applied on a circular column anywhere within a concentric circle of diameter (A) d/2 (B) d/3 (C) d/4 (D) d/8
Last Answer : (C) d/4
Description : For determining the ultimate bearing capacity of soil, the recommended size of a square bearing plate to be used in load plate test should be 30 to 75 cm square with a minimum thickness of (A) 5 mm (B) 10 mm (C) 15 mm (D) 25 mm
Last Answer : Answer: Option D
Description : Pick out the wrong statement. (A) Surface tension of a substance vanishes at critical point, as there is no distinction between liquid and vapour phases at its critical point (B) Entropy of ... is negative for exothermic reactions (D) The eccentric factor for all materials is always more than one
Last Answer : (D) The eccentric factor for all materials is always more than one
Description : Diopter is the power of a lens having a focal length of (A) 25 cm (B) 50 cm (C) 75 cm (D) 100 cm
Description : The Effective length of braced column generally varies…………the unsupported length of the column [ A ] 0.25 to 0.50 times [ B ] 0.50 to 1.00 times [ C ] 1.00 to 1.50 times [ D ] 2.00 to 2.50 times
Last Answer : [ B ] 0.50 to 1.00 times
Description : A coarse-grained soil has a voids ratio 0.75, and specific gravity as 2.75. The critical gradient at which quick sand condition occurs, is (A) 0.25 (B) 0.50 (C) 0.75 (D) 1.00
Last Answer : (D) 1.00
Description : The top height of a route marker above crown level is (A) 1.50 m (B) 1.75 m (C) 2.00 m (D) 2.25 m
Description : If the ruling gradient on any highway is 3%, the gradient provided on the curve of 300 metre radius, is (A) 2.00 % (B) 2.25 % (C) 2.50 % (D) 2.75 %
Description : For a 6.6 m wide two lane pavement, berms are provided on either side having a width of (A) 1.00 m (B) 1.25 m (C) 1.50 m (D) 1.75 m
Last Answer : Answer: Option C
Description : The expected out turn of brick work in cement mortar in foundation and plinth per mason per day, is (A) 1.00 m3 (B) 1.25 m3 (C) 1.50 m3 (D) 1.75 m3
Last Answer : (B) 1.25 m3
Description : A short, hollow cast iron cylinder with a wall thickness of 1 cm is to carry a compressive load of 10 tonnes. If the working stress in compression is 800 kg/cm2, the outside diameter of the cylinder should not be less than a) 0.5cm b) 5 cm c) 2.5cm d) 4.5 cm
Last Answer : b) 5 cm
Description : When a column is subjected to an eccentric load, the stress induced in the column will be (a) direct stress only (b) bending stress only (c) shear stress only (d) direct and bending stress both
Last Answer : (d) direct and bending stress both
Description : What is the impedance of a balance 4-wire with a diameter of 0.25 cm and spaced 2.5 cm apart using an insulator with a dielectric constant of 2.56? A. 100Ω B. 65Ω C. 75 Ω D. 50 Ω
Last Answer : A. 100Ω
Description : The expected discharge to be obtained from an open well sunk in coarse sand is 0.0059 cumec. If the working depression head of the well is 3 m, the minimum diameter of the well, is (A) 2 m (B) 2.25 m (C) 2.50 m (D) 3.00 m
Last Answer : (D) 3.00 m
Description : A bus stop is barricaded from the remaining part of the road, by using 50 hollow cones made of recycled cardboard. Each cone has a base diameter of 40 cm and height 1 m. -Maths 9th
Last Answer : Given: Radius of cone, r = diameter/2 = 40/2 cm = 20cm = 0.2 m Height of cone, h = 1m Slant height of cone is l, and l2 = (r2+h2) Using given values, l2 = (0.22+12) = (1.04) Or l ... (32.028 12) = Rs.384.336 = Rs.384.34 (approximately) Therefore, the cost of painting all these cones is Rs. 384.34.
Description : The maximum permissible eccentricity for no tension at the base of a gravity dam is (A) B/2 (B) B/3 (C) B/4 (D) B/6
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 : If n is the ratio of internal and external diameters of a hollow shaft, the ratio of the weight of the hollow shaft and that of solid shaft of same strength, will be (A) (1 - n²)/(1 - n²)1/2 (B) (1 - n²)/(1 - n 4 ... (1 + n 4 )1/2 (D) (1 + n 1 )/(1 + n 4 )2/3
Last Answer : (B) (1 - n²)/(1 - n 4 )2/3
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 Pitch of helixes in circular columns shall not exceed [ A ] 25 mm [ B ] 50 mm [ C ] 60 mm [ D ] 75 mm
Last Answer : [ D ] 75 mm
Description : A reinforced concrete cantilever beam is 3.6 m long, 25 cm wide and has its lever arm 40 cm. It carries a load of 1200 kg at its free end and vertical stirrups can carry 1800 kg. Assuming concrete to carry one- ... beam, the number of shear stirrups required, is (A) 30 (B) 35 (C) 40 (D) 45
Description : To ascertain the maximum permissible eccentricity of loads on circular columns, the rule generally followed, is (A) Middle half rule of columns (B) Middle third rule of columns (C) Middle fourth rule of columns (D) None of these
Last Answer : (C) Middle fourth rule of columns
Description : A column said to be under uniaxial bending, when the eccentricity is [ A ] with respect to one axis only [ B ] with respect to two axes [ C ] zero [ D ] 20 mm
Last Answer : [ A ] with respect to one axis only
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 : For keeping the stress wholly compressive the load may be applied on a circular column anywherewithin a concentric circle of diameter (a) d/2 (b) d/3 (c) d/4 (d) d/8
Last Answer : (c) d/4
Description : Minimum cover to longitudinal steel in a column should be (if the diameter of bar, Ø> 12mm) [ A ] 25 mm [ B ] 30 mm [ C ] 40 mm [ D ] 50 mm
Last Answer : [ C ] 40 mm
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 : If the strain energy stored per unit volume in a hollow shaft subjected to a pure torque when t attains maximum shear stress fs the ratio of inner diameter to outer diameter, is 17/64 (fs/N) (A) 1/2 (B) 1/3 (C) 1/4 (D) 1/5
Last Answer : (C) 1/4
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 : A pile is being driven with a drop hammer weighing 1800 kg and having a free fall of 1.00 m. If the penetration with last blow is 5 mm, the load carrying capacity of the pile, -according to the Engineering News formula, is (A) 100 tonnes (B) 50 tonnes (C) 20 tonnes (D) 10 tonnes
Last Answer : (D) 10 tonnes
Description : The density of lead is 12 grams per cm3. A lead brick has a mass of 1.5 kilograms. Its dimensions are 10 cm by 5 cm by 4 cm. Is it: w) More than 75% hollow x) Between 50 and 75% hollow y) Between 25 and 50% hollow z) Between 0 and 25% hollow
Last Answer : ANSWER: Y -- BETWEEN 25 AND 50% HOLLOW
Description : A doubly reinforced section is used (a) When the members are subjected to alternate external loads and the bending moment in the sections reverses. (b) When the member are subjected to loading eccentric in ... . (c) When the members are subjected to accidental lateral loads . (d) All of the above
Last Answer : (d) All of the above
Description : Cost of fencing a circular plot at the rate of Rs.15 per metre is Rs.3, 300. What will be the cost of flooring the plot at the rate of Rs.100 per square metre? a) Rs.3, 85,000 b) Rs.4, 70,000 c) Rs.2, 25,000 d) Rs.3, 50,000 e) Rs.2, 95,000
Last Answer : Perimeter of plot = 3300/15 = 220 meter 2πr = 220 2 × 22/7 × r = 220 r = 35 m. Area of plot = πr^2 = 22/7 × 35 × 35 = 3850 mt^2 Cost of flooring = 3850 × 100=Rs. 385000 Answer: a)
Description : In citrus 80-90% of the active roots are present in the soil to a depth of: a. 25 cm b. 50 cm c. 75 cm d. 100 cm
Last Answer : 25 cm
Description : If is the diameter of upper circular portion, the overall depth of a standard egg shaped section, is A. D B. 1.25 D C. 1.5 D D. 1.75 D
Last Answer : ANS: C
Description : Explain the effect of eccentric load with sketch w.r.t stresses developed
Last Answer : Effect of eccentric load: A load whose line of action does not coincide with the axis of a member is called an eccentric load .The distance between the eccentric axis of the body and the point of ... member. Thus the resultant stresses due to direct as well as bending stresses in the member