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501.

The deep bins are the containers in which the plane of rupture intersects

A.	the bottom survace of material stored	B.	the top surface of material stored
C.	the opposite face (wall) near the top	D.	the opposite surface (wall) near the bottom

502.

In elevated circular steel tanks, conical bottoms are attached when

A.	water is acidic	B.	water is alkaline
C.	water is muddy	D.	water is oily

503.

In elevated circular steel tanks, hemispherical bottoms are preferred because

A.	large capacity	B.	better appearance
C.	riveted connection between the side and bottom plates are easy	D.	All of the above

504.

The allowable stresses for the design of steel tanks are adopted

A.	as given in IS : 800	B.	95 percent reduced as given in IS : 800
C.	80 percent reduced as given in IS : 800	D.	50 percent reduced as given in IS : 800

505.

The maximum strain at the end of plastic range of structural steel is about

A.	0.11 percent	B.	1.5 percent
C.	11.0 percent	D.	15.0 percent

506.

The value of load factor which accounts for margin of safety in plastic design for gravity loads is about

A.	1.25	B.	1.55
C.	1.85	D.	2.15

507.

The shape factor of an isosceles triangle for bending about the axis parallel to the base is

A.	1.44	B.	1.74
C.	2.34	D.	2.74

508.

The number of possible independency mechanisms, n is determined from the following relationship:

A.	n = N + r	B.	n = N - r
C.	n = 2 N + r	D.	n = 2 N - r

509.

For the plastic analysis, the criterion for the analysis of a structure is based upon:

A.	working load	B.	yield load
C.	ultimate load	D.	breaking load

510.

The value of yield stress for structural steel is about

A.	1600 kg/cm2	B.	2600 kg/cm2
C.	3600 kg/cm2	D.	4600 kg/cm2