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GATE CE 1997
MCQ (Single Correct Answer)
+1
-0.3
If $$A$$ and $$B$$ are two matrices and $$AB$$ exists then $$BA$$ exists,
A
only if $$A$$ has as many rows as $$B$$ has columns
B
only if both $$A$$ and $$B$$ are square matrices
C
only if $$A$$ and $$B$$ are skew matrices
D
only if both $$A$$ and $$B$$ are symmetric
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GATE CE Subjects

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Irrigation
Gravity Dams and Spillways Water Requirement of Crops
Engineering Mechanics
Equilibrium of Force Systems Work Energy Principle and Impulse Momentum Equation
General Aptitude
Numerical Ability Logical Reasoning Verbal Ability
Transportation Engineering
Highway Devolopment and Planning Highway Geometric Design Traffic Engineering Highway Materials Pavement Design Railway, Runway and Taxiway Design
Hydrology
Precipitation and Frequency of Rainfall Data Evaporation and Transpiration Infiltration Hydrograph Flood Estimation and Flood Routing Well Hydraulics and River Gauging
Environmental Engineering
Sources and Coveyances Water Quality Control of Water Treatment of Water Water Demand Waste Water Characteristics Sewage System and Sewer Appurtenances Treatment of Sewage Disposal of Sewage Effluent Solid Waste Management Air Pollution Noise Pollution
Steel Structures
Riveted Joints and Bolted Joints Beams Materials and Specifications Compression Members Eccentric Connections Plate Girder Welded Connections Tension Members
Engineering Mathematics
Vector Calculus Numerical Methods Differential Equations Linear Algebra Complex Variable Probability and Statistics Transform Theory Calculus
Structural Analysis
Matrix Method Methods of Analysis Energy Principle Arches and Cable Truss Stability and Static Indeterminacy Moment Distribution Method Indeterminacy Influence Line Diagram Plastic Analysis Slope Deflection Method
Geomatics Engineering Or Surveying
Measurement of Area, Volume and Theory of Errors and Survey Adjustment Curves Theodolites and Plane Table Surveying Levelling Traversing Basics of GIS, GPS and Remote Sensing Field Astronomy and Photogrammetric Surveying Linear Measurements and Chain Survey Angular Measurements and Compass Survey Basic Concepts
Reinforced Cement Concrete
Doubly Reinforced Sections Bond Prestressed Concrete Limit State of Collapse Shear Limit State of Collapse Torsion Limit State of Collapse Compression Limit State of Serviceability Flanged Beams Workmenship and Fundamentals Singly Reinforced Sections Footings Slabs
Fluid Mechanics and Hydraulic Machines
Fluid Pressure and Measurement Fluid Dynamics Drag and Lift Dimensional Analysis Flow Through Pipes Hydrostatic Forces Open Channel Flow Hydraulic Machines Boundary Layer Theory Fluid Statics Properties of Fluids
Construction Material and Management
Construction Materials Program Evolution Review Technique Critical Path Method
Strength of Materials Or Solid Mechanics
Shear Stress In Beams Complex Stress Centroid and Moment of Inertia Simple Stresses Pure Bending Shear Force and Bending Moment Columns and Struts Propped Cantilever Beam Torsion Deflection of Beams Thin Cylinder Strain Energy Method
Geotechnical Engineering
Origin of Soils Definitions and Properties of Soils Classification of Soils and Clay Mineralogy Effective Stress and Permeability Seepage Analysis Compaction of Soil Compressibility and Consolidation Shear Strength of Soil Stress Distribution of Soil Retaining Wall and Earth Pressure Stability of Slopes Shallow Foundation Pile Foundation Soil Stabilization
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