The slenderness ratio of lacing bars should not exceed

Lacing bars in a steel column should be designed to resist

A

Bending moment due to 2.5% of the column load

B

Shear force due to 2.5% of the column load

C

2.5% of the column load

D

Both (A) and (B)

The pitch of the main bars in a simply supported slab, should not exceed its effective depth by

A

Three times

B

Four times

C

Five times

D

Six times

Angle of inclination of the lacing bar with the longitudinal axis of the column should preferably be between

A

10° to 30°

B

30° to 40°

C

40° to 70°

D

90°

In working stress design, permissible bond stress in the case of deformed bars is more than that in plain bars by

A

10%

B

20%

C

30%

D

40%

The effective length of lacing is the distance

A

Between the inner end rivets of the bar for single lacing

B

0.7 of the distance between the inner end rivets of the bar for double lacing

C

Between the inner ends of effective lengths of welds connecting the members

D

All the above

The slenderness ratio for masonry walls should not be more than

A

10

B

20

C

30

D

40

On Dhaka- Sylet highway , 5% of the drives are fined for exceeding the speed limit. However , 80% of the drivers who exceed the speed limit are not fined. What percentage of dirvers on this highway exceed the speed limit?

A

10

B

15

C

20

D

25

Slenderness ratio is the ratio of

A

Effective length of column to least radius of gyration of the column

B

Width of column to depth of column

C

Maximum size of column to minimum size of column

D

Effective length of column to width of column

The slenderness ratio is the ratio of

A

Area of column to least radius of gyration

B

Length of column to least radius of gyration

C

Least radius of gyration to area of column

D

Least radius of gyration to length of column

Euler’s formula for a mild steel column is not valid if the slenderness ratio is

A

90

B

60

C

120

D

100

The slenderness ratio of lacing bars should not exceed

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