What term describes the graphical representation displaying the line of action and application points of coplanar forces____________________?
Show answer Hide answer
Answer: B. space diagram
Explanation
A space diagram provides a geometric representation showing exact lines of action and application points of forces. It establishes the spatial configuration of structural members and external loads before graphical vector analysis. Drafting the space diagram is always the initial step in graphical statics problem-solving methods. Graphical statics uses geometric drawings to analyze forces and structural stresses without complex algebra. Coplanar force systems lie entirely within a single two-dimensional geometric plane. The line of action defines the infinite straight line along which a force vector acts.
Civil engineers historically used space and force diagrams to design roof trusses and bridge structures. Visualizing force application points prevents structural failure by ensuring correct moment calculations. Computer-aided drafting software now automates what engineers previously calculated using manual graphical methods. Option A refers to a diagram that represents vector magnitudes and directions rather than physical application points. Option C typically refers to a force polygon showing vector additions rather than the physical spatial layout. Option D describes a specific polygon used in suspension cable and arch analysis rather than general force locations.
- Subject
- Engineering
- Category
- Civil Engineering
- Topic
- —
- Difficulty
- medium
Related questions
Q1. What is the angular velocity of an automobile negotiating a curved path with a radius of 100m traveling at 36 km/hour, expressed as_______________?
Show answer Hide answer
Answer: A. 0.1 radian/sec
Converting speed from kilometers per hour to meters per second yields ten meters per second. Dividing the linear velocity by the circular path radius of one hundred meters gives zero point one radians per second. This ca...
Q2. For a projectile, the specific angle of projection where maximum height equals horizontal range is_____________________?
Show answer Hide answer
Answer: D. 76°
Setting maximum height equal to horizontal range gives tan(theta) = 4, leading to a projection angle of approximately 76°. The mathematical formula for maximum height is initial velocity squared times the sine squared of...
Q3. What are the dimensional formulas for centrifugal force__________________?
Show answer Hide answer
Answer: C. M’L’T2
Centrifugal force is fundamentally a force and must share the exact same dimensional formula as force. Force is defined as mass multiplied by acceleration yielding dimensions of mass times length divided by time squared....
Q4. The dimensional representation for the Universal Gravitational Constant ‘G’ is______________?
Show answer Hide answer
Answer: B. M-‘L3r2
Newtonian gravitation law equates force to the gravitational constant multiplied by masses divided by squared distance. Isolating the gravitational constant in this equation yields dimensions of force times distance squa...
Q5. For a lifting machine to be classified as reversible, its efficiency must exceed_________________?
Show answer Hide answer
Answer: B. more than 50%
A lifting machine is classified as reversible (capable of doing work in reverse) if its efficiency is greater than 50%. When efficiency exceeds 50%, the work output obtained during lowering exceeds the work lost overcomi...
Q6. One Newton matches_________________?
Show answer Hide answer
Answer: A. 105 dyne
The SI unit of force is related to the centimeter gram second unit through precise powers of ten. One kilogram equals one thousand grams and one meter equals one hundred centimeters for conversion purposes. Multiplying t...