ENGINEERING MECHANICS RR 2026
PRACTICE QUESTIONS AND CORRECT
ANSWERS A+ STUDY GUIDE
What refers to the elongation which is expressed on a fractional or
percentage basis?
A. Normal stress
B. strain
C. Thermal elongation
D. Modulus of rigidity - CORRECT ANSWER-B. strain
What is the highest ordinate of the stress-strain diagram?
A. rapture strength
B. ultimate strength
C. yield strength
D. elastic strength - CORRECT ANSWER-B. ultimate strength
Which of the following beams has two or more spans and is statistically
indeterminate?
A. Continuous beam
,B. Cantilever beam
C. Propped beam
D. Fixed-end beam - CORRECT ANSWER-A. Continuous beam
A specimen is subjected to a load. When the load is removed, the strain
disappears. Which of the following statements is correct?
A. The specimen is plastic
B. The specimen is elastic
C. The specimen has a high modulus of elasticity
D. The specimen is ductile - CORRECT ANSWER-B. The specimen is
elastic
What do you call a simple mechanical machine with the ability to increase
an applied force?
A. bearing
B. shaft
C. lever
D. Spring - CORRECT ANSWER-C. lever
What is another term for modulus of elasticity?
A. Bulk modulus
B. Shear strain
,C. Constant of elongation
D. Young's modulus - CORRECT ANSWER-D. Young's modulus
The twisting moment of a shaft is _____ proportional to horsepower and
_____ proportional to the speed
A. inversely, inversely
B. directly, directly
C. inversely, directly
D. directly, inversely - CORRECT ANSWER-D. directly, inversely
What do you call a set of pin-connected axial members?
A. Gable
B. Structural cell
C. Truss
D. Trestle - CORRECT ANSWER-C. Truss
Which of the following is true about a beam supported at both ends and
carrying a uniformly distributed load?
A. it has a uniform shear throughout the length of the beam
B. it has its maximum shear at the supports
C. it has its maximum shear at the center of the beam
, D. it has its maximum bending moment at the supports - CORRECT
ANSWER-B. it has its maximum shear at the supports
What force system combines the non-concurrent, non-parallel and non-
coplanar forces?
A. General three-dimensional system
B. Polar force system
C. Space force system
D. Parallel force system - CORRECT ANSWER-A. General three-
dimensional system
Which one of the choices below refers to an overload condition that occurs
when a long, unsupported members rolls out of its normal plane?
A. Web crippling
B. Local Buckling
C. Vertical Buckling
D. Lateral Buckling - CORRECT ANSWER-D. Lateral Buckling
Which of the following factors are used to account for the non-uniform
stress distribution?
A. stress concentration factors
B. principle stress factors
PRACTICE QUESTIONS AND CORRECT
ANSWERS A+ STUDY GUIDE
What refers to the elongation which is expressed on a fractional or
percentage basis?
A. Normal stress
B. strain
C. Thermal elongation
D. Modulus of rigidity - CORRECT ANSWER-B. strain
What is the highest ordinate of the stress-strain diagram?
A. rapture strength
B. ultimate strength
C. yield strength
D. elastic strength - CORRECT ANSWER-B. ultimate strength
Which of the following beams has two or more spans and is statistically
indeterminate?
A. Continuous beam
,B. Cantilever beam
C. Propped beam
D. Fixed-end beam - CORRECT ANSWER-A. Continuous beam
A specimen is subjected to a load. When the load is removed, the strain
disappears. Which of the following statements is correct?
A. The specimen is plastic
B. The specimen is elastic
C. The specimen has a high modulus of elasticity
D. The specimen is ductile - CORRECT ANSWER-B. The specimen is
elastic
What do you call a simple mechanical machine with the ability to increase
an applied force?
A. bearing
B. shaft
C. lever
D. Spring - CORRECT ANSWER-C. lever
What is another term for modulus of elasticity?
A. Bulk modulus
B. Shear strain
,C. Constant of elongation
D. Young's modulus - CORRECT ANSWER-D. Young's modulus
The twisting moment of a shaft is _____ proportional to horsepower and
_____ proportional to the speed
A. inversely, inversely
B. directly, directly
C. inversely, directly
D. directly, inversely - CORRECT ANSWER-D. directly, inversely
What do you call a set of pin-connected axial members?
A. Gable
B. Structural cell
C. Truss
D. Trestle - CORRECT ANSWER-C. Truss
Which of the following is true about a beam supported at both ends and
carrying a uniformly distributed load?
A. it has a uniform shear throughout the length of the beam
B. it has its maximum shear at the supports
C. it has its maximum shear at the center of the beam
, D. it has its maximum bending moment at the supports - CORRECT
ANSWER-B. it has its maximum shear at the supports
What force system combines the non-concurrent, non-parallel and non-
coplanar forces?
A. General three-dimensional system
B. Polar force system
C. Space force system
D. Parallel force system - CORRECT ANSWER-A. General three-
dimensional system
Which one of the choices below refers to an overload condition that occurs
when a long, unsupported members rolls out of its normal plane?
A. Web crippling
B. Local Buckling
C. Vertical Buckling
D. Lateral Buckling - CORRECT ANSWER-D. Lateral Buckling
Which of the following factors are used to account for the non-uniform
stress distribution?
A. stress concentration factors
B. principle stress factors
