MCQ
1. The steel beam of light sections placed in plain cement concrete are called-
joists
simple joists
filler joists
concrete joists
2. In a plate girder, the vertical stiffeners are provided when the ratio of clear depth to the thickness of web exceeds---
50
75
65
85
3. The beams supporting the stair steps are called as-
spandrel beams
trimmers
rafters
stringers
4. The main beam is a beam, which supports-
floor construction
joists
secondary beam
none of these
5. In the riveted built-up beams, an allowance of about--- of the area of cover plates is added to the calculated area.
10%
15%
20%
25%
6. The allowable bearing stress for rolled
128 N/mm²
156N/mm²
189N/mm²
228 N/mm²
7. In designing unstiffened seated connections, the length of seating angle is assumed to be ---the width of flange of the beam.
equal to
less than
more than
8. The beams resting on purlins are known as-
spandrel beams
rafters
trimmers
stringers
9. The vertical plate of a plate girder is termed as-
web plate
flange plate
cover plate
none of these
10. Any major beam in a structure is known as a-
subsidiary beam
joist
girder
secondary beam
11. A beam is a structural member subjected to loads.
axial
tansverse
axial and transverse
12. The maximum allowable stress for rolled steel beams and channels is-
128.5 MPa
181.5 MPa
156.5 MPa
228.5 MPa
13. A web plate is called stiffened, when the ratio of clear depth to thickness of web is-
greater than 55
greater than 65
greater than 75
greater than 85
14. The accuracy of micrometer, calipers, dial Indicators can be checked by-
feeler gauge
ring gauge
slip gauge
plug gauge
15. A beam that is safe in web crippling will not be safe in web buckling.
Agree
Disagree
16. The shear stress in a beam at neutral axis is-
zero
maximum
minimum
17. The unstiffened seated connections are used to transmit end reaction of beam upto-
100kN
150kN
200KN
300kN
18. The maximum deflection, for a simply supported beam, should not exceed-
1/125 of span
1/225 of span
1/325 of span
1/425 of span
19. Spans of continuous fillers are considered approximately equal when the longest span does not exceed the shortest span by more than---
5%
10%
15%
20%
20. In general, the depth of plate girder is kept as ---of span.
1/5 to 1/8
1/8 to 1/10
1/10 to 1/12
1/12 to 1/16