# Practice Test: Question Set - 18

**1. The web crippling due to excessive bearing stress can be avoided by**

- (A) Increasing the web thickness

- (B) Providing suitable stiffeners

- (C) Increasing the length of the bearing plates

- (D) None of the above

**2. Allowable working stress corresponding to the slenderness ratio of double angles placed back to back and connected to one side of a gusset plate, is reduced to**

- (A) 50 %

- (B) 60 %

- (C) 70 %

- (D) 80 %

**3. The number of seismic zones in which the country has been divided is**

- (A) 3

- (B) 5

- (C) 6

- (D) 7

**4. The critical stress on a column for elastic buckling given by Euler's formula, is**

- (A)

*f*

_{c}=

*Ï€*

^{2}

*E*/(

*I*/

*r*)

^{2}

- (B)

*f*

_{c}= (

*I*/

*r*)

^{ 2}/

*Ï€E*

- (C)

*f*

_{c}= (

*I*/

*r*)/

*Ï€E*

- (D)

*f*

_{c}=

*Ï€*

^{2}

*E*/(

*I*/

*r*)

**5. Load factor is**

- (A) Always equal to factor of safety

- (B) Always less than factor of safety

- (C) Always greater than factor of safety

- (D) Sometimes greater than factor of safety

**6. When a tension member is made of four angles with a plate as a web, the allowance for holes is made as**

- (A) Two
holes for each angle and one hole for the web

- (B) One hole for
each angle and one hole for the web

- (C) One hole for
each angle and two holes for the web

- (D) Two holes
for each angle and two holes for the web

**7. The effective length of a battened column is increased by**

- (A) 5 %

- (B) 10 %

- (C) 15 %

- (D) 20 %

**8. To keep the intensity of bearing pressure between the column base and concrete compressive and to vary from zero to 2**

*P*/*BL*, the ratio of the moment*M*to the axial load*P*should be- (A)

*L*/2

- (B)

*L*/3

- (C)

*L*/4

- (D)

*L*/6

**9. Minimum pitch provided in riveted steel tanks is**

- (A) 1.5

*d*

- (B) 2.0

*d*

- (C) 2.5

*d*

- (D) 3.0

*d*

**Where**

*d*is diameter of rivets**10. The spans are considered approximately equal if the longest span does not exceed the shortest span by more than**

- (A) 5 %

- (B) 10 %

- (C) 15 %

- (D) 20 %

**11. The mechanism method and the statical method give**

- (A) Lower and upper bounds respectively on the strength
of structure

- (B) Upper and lower bounds respectively on the strength
of structure

- (C) Lower bound on the strength of structure

- (D) Upper bound on the strength of structure

**12. When two plates are placed end to end and are joined by two cover plates, the joint is known as**

- (A) Lap joint

- (B) Butt joint

- (C) Chain
riveted lap joint

- (D) Double cover
butt joint

**13. For a standard 45° fillet, the ratio of size of fillet to throat thickness is**

- (A) 1 : 1

- (B) 1 : √2

- (C) √2 : 1

- (D) 2 : 1

**14. The strength of a riveted lap joint is equal to its**

- (A) Shearing
strength

- (B) Bearing
strength

- (C) Tearing
strength

- (D) Least of
(a), (b) and (c)

**15. The maximum spacing of vertical stiffeners is**

- (A) 1.33

*d*

- (B) 1.25

*d*

- (C) 1.5

*d*

- (D) 1.75

*d*

**Where ‘**

*d’*is the distance between flange angles**View All Answers**

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