GATE CE 1991 | GATE CE Year Wise Previous Years Questions

GATE CE 1991

MCQ (Single Correct Answer)

-0.6

A prestressed concrete beam has a cross-section with the following properties: Area $$A = 46,000\,\,m{m^2},$$ $${\rm I} = 75.8 \times {10^7}\,\,m{m^4},$$ $${Y_{bottom}} = 244\,\,mm,$$ $${Y_{top}} = 156\,\,mm.$$ It is subjected to a prestressing force at an eccentricity $$'e'$$ so as to have a zero stress at the top fibre. The value of $$'e'$$ given by

$$66.66$$ $$mm$$

$$66.95$$ $$mm$$

$$104.72$$ $$mm$$

$$133.33$$ $$mm$$

GATE CE 1991

MCQ (Single Correct Answer)

-0.3

Setting time of cement sample is tested by

Slump test

Vicat needle test

Le-Chatelier's test

Briquette test

GATE CE 1991

MCQ (Single Correct Answer)

-0.3

The moments at the end $$'A'$$ and $$'B'$$ of a beam $$'AB'$$ where end $$(a)$$ is fixed and $$(b)$$ is hinged, when the end $$(b)$$ sinks by an amount $$\Delta $$ are given as

$$\eqalign{ & At\,\,the\,\,end\,\,'A'\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,At\,\,the\,\,end\,\,'B' \cr & \,\,\,\,\,\,\,\,\,{{6EI\Delta } \over {{\ell ^2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{{6EI{\rm A}} \over {{\ell ^2}}} \cr} $$

$$\eqalign{ & At\,\,the\,\,end\,\,'A'\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,At\,\,the\,\,end\,\,'B' \cr & \,\,\,\,\,\,\,\,\,{{3EI\Delta } \over {{\ell ^2}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{{3EI\Delta } \over {{\ell ^2}}} \cr} $$

GATE CE 1991

MCQ (Single Correct Answer)

-0.3

A thin cylindrical vessel of mean diameter $$D$$ and of length $$'L'$$ closed at both the ends is subjected to a water pressure $$'P'$$. The value of hoop stress and longitudinal stress in the shell shall be respectively.

$${{PD} \over {2t}}.{{PD} \over {4t}}$$

$${{PD} \over {8t}}.{{PD} \over {8t}}$$

$${{PD} \over {4t}}.{{PD} \over {8t}}$$

$${{PD} \over t}.{{PD} \over {2t}}$$

PREVIOUS NEXT

GATE CE Papers

2024