31401. A reinforced concrete beam is designed for the limit states of collapse in flexure a shear. Which of the following limit states of serviceability have to be checked ?
1. Deflection
2. Cracking
3. Durability
Select the correct answer using the codes given below :

31402. Two men, one stronger than the other have to lift a load of 1200 N which is suspended from a light rod of length 3 m. The load is suspended between the two persons positioned at the two ends of the rod. The weaker of the two persons can carry a load up to 400 N only. The distance of the load to be suspended from the stronger person such that the weaker person has the full share of 400 N is

31403. In a closed theodolite traverse, the sum of the latitudes is + 5.080 m and the sum of the departures is -51.406 m. The sum of the traverse legs is 20.525 km. The accuracy of traverse is nearly equal to

31404. Consider the following statements :
1. Pumps in series operation allow the head to increase.
2. Pumps in series operation increase the flow rate.
3. Pumps ill parallel operation increase the flow rate.
4. Pumps in parallel operation allow the head to increase.
Which of these statements are correct ?

31405. The Hijra (Muslim Calender) started from which years?

31406. What is the wave velocity for a uniform train of wave beyond the storm centre for a wave length of 20 m in 14 m deep water ?

31407. Maximum shear stress developed in a beam of rectangular section bears a constant ratio to its average shear stress and this ratio is equal to

31408. A circular pipe of radius R carries a laminar flow of a fluid. The average velocity is indicated as the local velocity at what radical distance, measured from the centre ?

31409. Radial splits in timber originating from 'Bark' and narrowing towards the 'Pith' are known as

31410. What is the condition for maximum transmission of power through a nozzle at the end of a long pipe ?(where H = total head at the inlet of the nozzle, hf = head loss due to friction )

31411. A simply supported beam AB of span L is subjected to a concentrated load W at the centre C of the span. According to Mohr's moment area method, which one of the following gives the deflection under the load ?

31412. A bar of circular cross-section varies uniformly from a cross-section 2D to D. If extension of the bar is calculated treating it as a bar of average diameter, then the percentage error will be

31413. While concreting in cold weather where frosting is also likely, one uses

31414. A 600 mm long and 50 mm diameter rod of steel (E = 200 GPa, α = 12 x 10-6/°C) is attached at the ends to unyielding supports. When the temperature is 30°C there is no stress in the rod. After the temperature of the rod drops to - 20°C, the axial stress in the rod will be

31415. The correct sequence, in the direction of the flow of water for installations in the hydro-power plant is

31416. Vibratory rollers are more useful for compacting which of the following ?

31417. What does the wind Rose Diagram (WRD) for orientation of airport runway give ?

31418. The planet nearest to the Earth is?

31419. Who said, Time is money?

31420. Which one of the follewing represents a circumpolar star ?

31421. What is the ratio of maximum shear stress to average shear stress for a circular section ?

31422. If a circular shaft is subjected to a torque T and a bending moment 'M' the ratio of the maximum shear stress to the maximum bending stress is given by :

31423. സർവോദയ പ്രസ്ഥാനത്തിന്റെ ഉപജ്ഞാതാവ്? [Sarvodaya prasthaanatthinte upajnjaathaav?]

31424. The construction of impounding reservoir is required when

31425. The method of plane tabling commonly used for establishing the instrument station is a method of

31426. A fixed beam of unifrom section is carrying a point load at its mid-span. If the moment of inertia of the middle half length is now reduced to half its previous value, then the fixed end moments will

31427. The moisture content of a clayey soil is gradually decreased from a large value. What will be the correct sequence of the occurrence of the following limits ?
1. Shrinkage limit
2. Plastic limit
3. Liquid limit
Select the correct answer from the codes given below :

31428. For the movement of vehicles at an intersection of two roads without any interference, which type of grade separation is generally preferred ?

31429. Which one of the following stresses is independent of yield stress as a permissible stress for steel members ?

31430. Permissible limit of cant deficiency for Broad Gauge (B.G.) is

31431. If the line of sight between two stations A and B, on sea, and 80 km apart, makes tangent at point A, then the minimum elevation of the signal required at B (considering the coefficient of refraction "m" = 0.08 and the mean radius of earth as 6400 km) will be

31432. A simply supported beam of uniform cross-section is subjected to a maximum bending moment of 2.25 t.m. If it has rectangular cross-section with width 15 cm and depth 30 cm, then the maximum bending stress induced in the beam will be

31433. Consider the following statements regarding underreamed piles :
1. They are used in expansive soils.
2. They are of perkcast reinforced concrete.
3. The ratio of bulb to shaft diameters is usually 2 to 3.
4. Minimum spacing between the piles should not be less than 1.5 times the bulb diameter.
of these statements :

31434. What is efflorescence ?

31435. Consider the following statements regarding a beam of uniform cross-section simply supported at its ends and carrying a concentrated load at one of its third points :
1. Its deflection under the load will be maximum.
2. The bending moment under the load will be maximum.
3. The deflection at the mid-point of the span will be maximum.
4. The slope at the nearer support will be maximum.
Of these statements :

31436. What is the recommended grade of tar for grouting purpose ?

31437. Which of the following statements is/are true in relation to the term 'detention period' in a settling tank?
1. It may be determined by introducing a dye in the inlet and timing its appearance at the outlet.
2. Greater the detention period, greater the efficiency of removal of settleable matter.
3. It is the time taken for any unit of water to pass through the setting basin.
4. It is usually more than the flowthrough period.
Select the correct answer using the codes given below :

31438. If a soil sample of weight 0.18 kg having a volume of 10-4 m3 and dry unit wt. of 1600 kg/m3 is mixed with 0.02 kg of water then the water content in the sample will be

31439. With 'n' variables and 'm' fundamental dimensions in a system, which one of the following statements relating to the application of the Buckingham's Pi Theorem is incorrect ?

31440. Two sources generate noise levels of 90 dB and 94 dB respectively. The cumulative effect of these two noise levels on the human ear is

31441. My sister is very good ......... cooking?

31442. Sewage sickness occurs when

31443. A steel cable of 2 cm diameter is used to lift a load of 500π kg. Given that, E = 2 x 106 kg/cm2 and the length of the cable is 10 m, the elongation of the cable due to the load will be

31444. Consider the following statements regarding tensile test diagrams for carbon steel with varying carbon contents :
As the carbon content increases
1. the ultimate strength of steel decreases
2. the elongation before fracture increases
3. the ductility of the metal decreases
4. the ultimate strength increases.
Of these statements :

31445. Negative skin friction on a pile under vertical compressive load acts

31446. The defect which develops due to uncontrolled and non-uniform loss of moisture from wood is known as which one of the following ?

31447. Consider the following statements in respect of the critical depth of flow in a prismatical rectangular channel:
1. For known specific emergy, discharge is minimum.
2. For known discharge, the specific energy is minimum.
Which of the statements given above is/are correct ?

31448. On the basis of the data given in the following figures, the bending moment under the load would work out to

31449. What is the innermost portion of approach zone which is the most critical portion from obstruction viewpoint, called ?

31450. A circular plate 100 mm diameter is welded to another plate by means of 6 mm fillet weld. If the permissible shearing stress in the weld equals 10 kg/mm2, then the greatest twisting moment that can be resisted by the weld will be