Q.1

Shear stress develops on a fluid element, if :

  • the fluid is at least
  • the fluid-container is subject to uniform linear acceleration
  • the fluid is inviscid
  • the fluid is viscous and the flow is nonuniform
Q.2

Un-factored maximum bending moments at a section of a reinforced concrete beam resulting from a frame analysis areandkNm under dead, live, wind and earthquake loads respectively. The design moment (kNm) as per IS: 456-for the limit state of collapse (flexure) is

  • 195
  • 250
  • 345
  • 372
Q.3

Maximum size of a fillet weld for a plate of square edge is

  • 1.5 mm less than the thickness of the plate
  • one half of the thickness of the plate
  • thickness of the plate itself
  • 1.5 mm more than the thickness of the plate
Q.4

The reaction time for calculation of stopping distance may be assumed as

  • 5 secs
  • 2.5 secs
  • 0.5 secs
  • 10.0 secs
Q.5

The cylinder strength of the concrete is less than the cube strength because of

  • the difference in the shape of the cross section of the specimens
  • the difference in the slendeness ratio of the specimens
  • the friction between the concrete specimens and the steel plate of the testing machine
  • the cubes are tested without capping but the cylinders are tested with capping
Q.6

A hydraulic turbine has a discharge of 5 m3/s, when operating under a head ofm with a speed ofrpm. If it is to operate under a head ofm, for the same discharge, the rotational speed in rpm will approximately be

  • 433
  • 403
  • 627
  • 388
Q.7

The microbial quality of treated piped water supplies is monitored by

  • Microscopic examination
  • Plate count of heterotrophic bacteria
  • Coliform MPN test
  • Identification of all pathogens
Q.8

The treatment that should be given to the water from a deep tube well is :

  • pre-settling only
  • coagulation and flocculation only
  • filtration only
  • disinfection only
Q.9

Vane tester is normally used for determining in situ shear strength of :

  • soft clays
  • sand
  • stiff clays
  • gravel
Q.10

The percentage error in the computed discharge over a triangular notch corresponding to an error ofin the measurement of the head over the notch, would be

  • 1.0
  • 1.5
  • 2.0
  • 2.5
Q.11

A water treatment plant is required to processm3/d of raw water (density =kg/m3, kinematic viscosity = 10-6 m2/s). The rapid mixing tank imparts tank a velocity gradient of 900s-1 to blendmg/l of alum with the flow for a detention time of 2 minutes. The power input (W) required for rapid mixing is

  • 32.4
  • 36
  • 324
  • 32400
Q.12

A nozzle discharging water under head H has an outlet area "a" and discharge coefficient cd = 1.A vertical plate is acted upon by the fluid force Fj when held across the free jet and by the fluid force Fn when held against the nozzle to stop the flow, the ratio Fj/Fn is

  • 1/2
  • 1
  • 2
  • 2
Q.13

The 5-day BOD of a wastewater sample is obtained asmg/l (with k = 0.h-1). The ultimate oxygen demand (mg/l) of the sample will be

  • 3800
  • 475
  • 271
  • 190
Q.14

On sag (or valley) curves the available sight distance is determined based on :

  • design speed
  • height of obstacle
  • height of driver eye
  • night-time driving conditions
Q.15

A hydraulic turbine develops a power of 104 metric horse power while running at a speed ofrevolutions per minute, under a head ofm. Its specific speed is nearest to one of the following :

  • 100
  • 628
  • 523
  • 314
Q.16

A tube well having a capacity of 4 m3/hour operates forhours each day during the irrigation season. How much area can be commanded if the irrigation interval isdays and depth of irrigation is 7 cm ?

  • 1.71 x 104 m2
  • 1.14 x 104 m2
  • 22.9 x 104 m2
  • 2.29 x 104 m2
Q.17

In a steady radial flow into an intake, the velocity is found to vary as (1/r2), where r is the radial distance. The acceleration of the flow is proportional to

  • 1/r5
  • 1/r3
  • 1/r4
  • 1/r
Q.18

For the frame shown in the below figure, the maximum bending moment in the column is,

  • zero
  • 400 kNm
  • 100 kNm
  • 200 kNm
Q.19

For the frame shown in the below figure, the maximum bending moment in the column is,

  • zero
  • 400 kNm
  • 100 kNm
  • 200 kNm
Q.20

For the frame shown in the below figure, the maximum bending moment in the column is,

  • zero
  • 400 kNm
  • 100 kNm
  • 200 kNm
Q.21

For a highway with design speed ofkmph, the safe overtaking sight distance is (assume accelerations as 0.m/sec2)

  • 300 m
  • 750 m
  • 320 m
  • 470 m
Q.22

Mechanical stabilization requires :

  • mixing of two or more types of natural soils
  • addition of chemicals to soils
  • addition of lime to soils
  • addition of cementing material to soils
Q.23

Base course is used in rigid pavements for

  • prevention of subgrade settlement
  • prevention of slab cracking
  • prevention of pumping
  • prevention of thermal expansion
Q.24

For a flow of 5.7 MLD (million litres per day) and a detention time of 2 hours, the surface area of a rectangular sedimentation tank to remove all particles having settling velocity of 0.mm/s is

  • 20 m2
  • 100 m2
  • 200 m2
  • 400 m2
Q.25

The particle size distribution curves are extremely useful for the classification of

  • fine grained soils
  • coarse grained soils
  • both coarse grained and fine grained soils
  • silts and clays
Q.26

If duty (D) ishectares/cumec and base period (B) isdays for an irrigated crop, then delta (Δ) in meters is given by

  • 102.8
  • 0.73
  • 1.38
  • 0.01
Q.27

The disinfection efficiency of chlorine in water treatment

  • is not dependent on pH value.
  • is increased by increased pH values.
  • remains constant at all pH values.
  • is reduced by increased pH value.
Q.28

A reinforced concrete structure has to be constructed along a sea coast. The minimum grade of concrete to be used as per IS : 456-2000

  • M 15
  • M 20
  • M 25
  • M 30
Q.29

The net effective cross sectional area calculated in the steel angle tension member design, accounts for:

  • the tensile force and bolt holes
  • the eccentricity of the end connections and the bolt holes
  • the effectiveness of the tack connection along the length
  • the effectiveness of the end connection
Q.30

The following two statements are made with reference to a simply supported under-reinforced RCC beam :

  1. Failure takes place by crushing of concrete before the steel has yieled.
  2. The neutral axis moves up as the load is increased.

With reference to the above statements, which of the following applies ?
  • Both the statements are false.
  • I is true but II is false.
  • Both the statements are true.
  • I is false but II is true.
0 h : 0 m : 1 s