79101. Determine the force in members GF, CF, CD of the symmetric roof truss and indicate whether the members are in tension or compression.
79102. The Warren truss is used to support a staircase. Determine the force in members CE, ED, and DF, and state whether the members are in tension or compression. Assume all joints are pinned.
79103. Determine the horizontal and vertical components of force at pins A and C of the two-member frame.
79104. A tower used in an electrical substation supports a power line which exerts a horizontal tension of T = 500 lb on each side truss of the tower as shown. Determine the force in members BC, CM, and LM of a side truss and indicate whether the members are in tension or compression.
79105. The Pratt bridge truss is subjected to the loading shown. Determine the force in members CD, CL and ML, and indicate whether these members are in tension or compression.
79106. Compute the force in each member of the Warren truss and indicate whether the members are in tension or compression. All the members are 3 m long.
79107. The scissors lift consists of two sets of symmetrically placed cross members (one in front that is shown and one behind that is not shown) and two hydraulic cylinders (front [labeled DE] and back [not shown]). The uniform platform has a mass of 60 kg with a center of gravity at G1. The 85 kg load (center of gravity at G2) is centered front to back. Determine the force in each of the hydraulic cylinders necessary to maintain equilibrium. These are rollers at B and D.
79108. The jack shown supports a 350-kg automobile engine. Determine the compression in the hydraulic cylinder C and the magnitude of force that pin B exerts on the horizontal member BDE.
79109. A sign is subjected to a wind loading that exerts horizontal forces of 300 lb on joints B and C of one of the side supporting trusses. Determine the force in members BC, CD, DB, and DE of the truss and state whether the members are in tension or compression.
79110. Determine the horizontal and vertical components of force at pin A.
79111. The hoist supports the 125-kg engine. Determine the force the load creates in member DB and in member FB, which contains the hydraulic cylinder H.
79112. Determine the force in each member of the truss and indicate whether the members are in tension or compression.
79113. The principles of a differential chain block are indicated schematically in the figure. Determine the magnitude of force P needed to support the 800-N force. Also compute the distance x where the cable must be attached to bar AB so the bar remains horizontal. All pulleys have a radius of 60 mm.
79114. Determine the magnitude of the forces in pins B and D of the four-member frame.
79115. Determine the force in members FF, FB, and BC of the Fink truss and indicate whether the members are in tension or compression.
79116. The floor beams AB and BC are stiffened using the two tie rods CD and AD. Determine the force along each rod. Assume the three contacting members at B are smooth and the joints at A, C, and D are pins.
79117. FFC stands for
79118. Fastest shorthand writer was
79119. First human heart transplant operation conducted by Dr. Christiaan Barnard on Louis Washkansky, was conducted in
79120. Exposure to sunlight helps a person improve his health because
79121. Golf player Vijay Singh belongs to which country?
79122. Guarantee to an exporter that the importer of his goods will pay immediately for the goods ordered by him, is known as
79123. First Afghan War took place in
79124. Gulf cooperation council was originally formed by
79125. First China War was fought between
79126. Dumping is
79127. For the Olympics and World Tournaments, the dimensions of basketball court are
79128. Each year World Red Cross and Red Crescent Day is celebrated on
79129. Famous sculptures depicting art of love built some time in 950 AD ? 1050 AD are
79130. Gravity setting chambers are used in industries to remove
79131. Friction can be reduced by changing from
79132. During eleventh Antarctic Expedition in Nov. 1991/March 1992 ____ was installed.
79133. From the following, choose the set in which names of Secretary-Generals of the UNO are arranged in correct chronological order?
79134. Georgia, Uzbekistan and Turkmenistan became the members of UNO in
79135. Guru Gobind Singh was
79136. Hermann Scheer (Germany) received right Livelihood Award in 1999 for
79137. Germany signed the Armistice Treaty on ____ and World War I ended
79138. During World War II, when did Germany attack France?
79139. Frederick Sanger is a twice recipient of the Nobel Prize for
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