Explore topic-wise MCQs in Engineering.

The angle of inclination of the lacing bars with axis of the member is kept between

For achieving suitably a low permeability

Removal of props under

The value of the constant K in the formula for determining the minimum area of tension reinforcement in a beam is

The concrete may be accepted if the average equivalent cube strength of the cores, is at least 85% of the cube strength of the concrete grade at the specified age and no individual core possesses strength less than

The slenderness ratio of a tie in a roof truss if subjected to action of wind and seismic forces, should not be greater than

For concreting of shallow sections with vibration, the work ability of concrete should be

The slenderness effect of a wall is considered if the effective height of the wall exceeds the thickness

The ratio of the effective length to the least radius of gyration of a tie member of a roof truss, which gets subjected to reversal of stress shall not exceed

Pick up the explosive used for tunnelling in soft rocks from the following :

Which one of the following methods is generally used for the layout of the muck-car tracks

In the wooded bulk-head, used for mucking in steep grade tunnels,

Railway tunnels, are generally

The cut of a tunnel face is shown in given figure. This is called

For transferring the tunnel alignment through shafts, we adopt the following steps :
1. Hanging two or more plumb lines in the shaft
2. Determining the bearing of the plumb lines i.e. plumb plane
3. Suspending a 35 kg weight by each plumb line
4. Immersing the weights of both the plumb lines in the buckets containing water.
The correct sequence of steps is :

For B.G. single track, the section of the tunnel must have a width

For initial surveys of tunnels, the following activities are involved:
1. Marking portal point with concrete pillars on the ground
2. Marking tunnel obligatory points on the topographical maps
3. Preliminary setting of the tunnel on the topographical Survey of India maps
3. Driving lines between the fixed obligatory points.
The correct sequence of the activities is :

For full face method, the excavation to be done is generally divided into

The tunnels, the artificial underground passages are constructed for :

Which one of the following methods is generally adopted for tunnelling in firm ground

An overhead track on a large truss frame is required in case of car changer by

In the given figure drill holes, heading, mucking and benching are mumbered as 1, 2, 3, 4 The correct sequence is :

The length of the needle beam used in needle beam method of tunnelling is usually

For hauling muck from the tunnel, the following type of muck-car is used :

Which one of the following methods is adopted for permanent drainage of tunnels :

The area of the concrete in compression plus the area of reinforcement transferred on the basis of modular ratio, is called

If D is the overall thickness of the slab, the diameter of the reinforcing bars should not exceed

Hertz (H_z) is used to express

Candela (Cd) is used to express

The unit kg/m³ is used for

The fundamental units in S.I. System are :

The bar used for defining the standard metre at the International office of weights and measures at Sevres near Paris, is composed of

In SI units, moment is expressed as

The creep coefficient i.e. the ratio of ultimate creep and elastic strain after

The designed transverse shear in lacing is assumed as

For the stability of a structural part, the weight or anchorage should be

In compression members, the lap length of a bar should not be less than

The slenderness ratio of single angle discontinuous struts conmected by a single rivet or bolt, shall not exceed

In adverse circumtances, the reinforced concrete member immersed in sea water or subjected to sea spray, the maximum permissible cover for the reinforcing bars, should not exceed

If a column is subjected to dead load and super imposed load only, the maximum ratio should not be greater than

For the reinforced concrete member totally immersed in sea water, the normal cover provided for the reinforcing bars is further increased by

The effective and actual lengths of a cantilever are same if continuous at the support,

If the dimensions of a rectangular section of a short column are 15 cm x 20 cm, its unsupported length should be restricted to

The reinforcing bars in beams are not bundled in contact if the diameter of the bars, exceeds

For the plain reinforcing bars in compression, the permissible design bond stress in tension, is increased by

The cover to the main reinforced may be reduced up to one third of the specified cover but not less than

For heavily reinforced concrete member, the nominal maximum size of the aggregates should be restricted to

The reduced level of third floor of a building near a column is 205.350 m. The reduced levels of the undersides of four beams supporting the fourth floor framing into the column mutually perpendicular are 208.350 m, 208.450 m, 208.500 m and 208.550 m. The supported length of the column is

If is the deviation of the individual test strength from the average of n samples, the standard deviation of concrete of the given grade is

The over all depth of a solid slab is 20 cm and effective depth is 15 cm. The horizontal distance between parallel main reinforcement should not be more than