Questions and answers for exam Preparation

MCQs

Total Questions : 292 | Page 29 of 30 pages

Question 281. 1. The width of lacing bars in mm is kept

equal to, nominal rivet diameter
twice the nominal rivet diameter
thrice the nominal rivet diameter
maximum of the above?rounded to nearest 5 mm.

Discuss Question

Answer: Option D. -> maximum of the above?rounded to nearest 5 mm.

Question 282. 8. The designed transverse shear in lacing is assumed as

2.5% of axial load
3% of axial load
3.5% of axial load
4% of axial load.

Discuss Question

Answer: Option A. -> 2.5% of axial load

Question 283. 2. The thickness of flat lacing bars for single lacing is, taken, where 1 is effOctiye length of the bar.

Discuss Question

Answer: Option D. -> 40

Question 284. 4. Pick up the correct statement from the following :

The diameter of a rivet, before driving is taken as the nominal diameter of the rivet
The diameter of the rivet hole is taken as the gross area of the rivet
For rivets of nominal diameters less than 25 mm, the diameter of the rivet hole is taken as the nominal diameter of the rivet plus 1.5 mm
All the above.

Discuss Question

Answer: Option D. -> All the above.

Question 285. 7. Pick up the correct statement from the following :

The distance between centres of two adjacent rivets in line with the direction of stress shall not exceed 16 t or 200 mm whichever is less in tension members The distance between the centres of two adjacent rivets in line with the direction of stress shall not exceed 12 t or 203 ram whichever is less in compression members
The minimum pitch of rivets should not be less than 2.5 times the diameter of the rivet hole
The distance between centres of any two consecutive rivets in a line adjacent and parallel to an edge of an outside plate shall hot exceed 100 mm + 4 t or 200 mm whichever is less both in compression and tension
All the above.

Discuss Question

Answer: Option D. -> All the above.

Question 286. 9. 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

Discuss Question

Answer: Option D. -> 350

Question 287. 6. The maximum pitch of rivets for compression and tension members should not exceed

32 t
200 mm
40 t
both (a) and .

Discuss Question

Answer: Option D. -> both (a) and .

Question 288. 8. The distance between rivet line and the nearest edge of a joint not exposed to weather, is taken where t is thickness in mm of the thinner outside plate.

6 t
8 t
10 t
12 t

Discuss Question

Answer: Option D. -> 12 t

Question 289. 5. The minimum pitch i.e., the distance between centres of rivet holes is not less than

1.5 times the hole diameter
2.0 times the hole diameter
2.5 times the hole diameter
3.0 times the hole diameter

Discuss Question

Answer: Option C. -> 2.5 times the hole diameter

Question 290. 0. For calculating critical compression stress in bending Cs for sections symmetrical about the x-x axis, from the formula the value of G is taken