Related Questions

How many blocks away will Fred be from his starting p;ace if he travels two blocks north , then three blocks east, and then two blocks south?
A Four
B Two
C Three
D Zero
How many blocks away will Fred be from his starting place if he travels two blocks north, then three blocks east and then two blocks south?
A Four
B Two
C Three
D Zero
A bus picks up a group of tourists at a hotel. The sightseeing bus travels 2 blocks north, 2 blocks east. I block south, 2 blocks east, and 1 block south. Where is the bus in relation to the hotel?
A 2 blocks north
B 1 block west
C 3 blocks south
D 4 blocks east
In a band and block brake, the ratio of tensions on tight side and slack side of the band is (where $$\mu $$ = Coefficient of friction between the blocks and the drum, $$\theta $$ = Semi-angle of each block subtending at the center of drum and n = Number of blocks)
A $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = \mu \theta {\text{n}}$$
B $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 - \mu \tan \theta }}{{1 + \mu \tan \theta }}} \right)^{\text{n}}}$$
C $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\mu \theta } \right)^{\text{n}}}$$
D $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 + \mu \tan \theta }}{{1 - \mu \tan \theta }}} \right)^{\text{n}}}$$
In a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where $$\mu $$ = Coefficient of friction between the blocks and the drum, $$\theta $$ = Semi-angle of each block subtending at the centre of drum and n = Number of blocks)
A $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_{\text{2}}}}} = \mu \theta \times {\text{n}}$$
B $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\mu \theta } \right)^{\text{n}}}$$
C $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 - \mu \tan \theta }}{{1 + \mu \tan \theta }}} \right)^{\text{n}}}$$
D $$\frac{{{{\text{T}}_1}}}{{{{\text{T}}_2}}} = {\left( {\frac{{1 + \mu \tan \theta }}{{1 - \mu \tan \theta }}} \right)^{\text{n}}}$$
Most architectural firms and mechanical design companies utilize different categories of blocks. These sets of blocks are usually housed in _________.
A Block vaults
B Block libraries
C Block books
D Block references
If the loss of prestress is excessive resulting in tensile cracks, which method should be used?
A Preloading method
B Hollow method
C Transparent method
D Layered method
The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that
A It is subjected to a higher cyclic loading than the outer side
B It is subjected to a higher stress than the outer side
C It is more stretched than the outer side during the manufacturing process
D It has a lower curvature than the outer side
Which soil is sticky when wet and develops cracks when dry
A Alluvial soil
B Black soil
C Red soil
D Late rite soil
Identify one of the quotation parts that must be changed to make the sentence correct. Rocks can be 'broken apart' by water that seeps into the cracks and 'freeze' in low 'temperatures'. 'No Error'
A broken apart
B freeze
C temperatures
D no error

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