For no tension condition in the base of a short column of circular section, the line of action of the load should be within a circle of diameter equal to __________ of the main circle.

According to Euler's column theory, the crippling load for a column of length (l) fixed at both ends is __________ the crippling load for a similar column hinged at both ends.

A

Equal to

B

Two times

C

Four times

D

Eight times

When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

A

tension in the tight side of the belt

B

tension in the slack side of the belt

C

sum of the tensions on the tight side and slack side of the belt

D

average tension of the tight side and slack side of the belt

In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate

A

Fully by direct bearing

B

Fully through fastenings

C

50% by direct bearing and 50% through fastenings

D

75% by direct bearing and 25% through fastenings

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

The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

A

0.34 times

B

0.67 times

C

0.81 times

D

0.95 times

The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

A

0.34 times

B

0.67 times

C

0.81 times

D

0.95 times

According to load factor method, the permissible load ‘W’ on a short column reinforced with longitudinal bars and lateral stirrups, is

A

Stress in concrete × area of concrete

B

Stress in steel × area of steel

C

Stress in concrete × area of concrete + Stress in steel × area of steel

D

None of these

A circular wheel 28 inches in diameter rotates the same number of inches per second as a circular wheel 35 inches in diameter. If the smaller wheel makes x revolutions per second, how many revolutions per minutes does the larger wheel make in terms of x?

A

12x

B

24x

C

36x

D

48x

A circular wheel 28 inches in diameter rotates (moves) the same number of inches per second as a circular wheel 35 inches in diameter. If the smaller wheel makes x revolutions per second, how many revolutions per minute does the larger wheel make in terms of x?

A

12x

B

48x

C

24x

D

36x

In testing a pile by load test, pile platform is loaded with one and half times the design load and a maximum settlement is noted. The load is gradually removed and the consequent rebound is measured. For a safe pile, the net settlement (i.e. total settlement minus rebound) per tonne of test load should not exceed

A

10 mm

B

15 mm

C

20 mm

D

25 mm

For no tension condition in the base of a short column of circular section, the line of action of the load should be within a circle of diameter equal to __________ of the main circle.

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