Bennett Mechanical Test Structures and Center of Gravity 5

Question 1

A hanging sign is supported by a horizontal bar and a diagonal cable to the wall. The cable is in?

Accepted Answer

Tension

Answer

Compression

Answer

No force

Answer

Twisting

Question 2

A uniform rod 10 ft long is balanced on a single support. The support must be at?

Accepted Answer

The 5 ft midpoint

Answer

The 2 ft mark

Answer

One end

Answer

The 8 ft mark

Question 3

Raising the load high on a forklift makes the forklift?

Accepted Answer

Less stable and more likely to tip

Answer

More stable

Answer

Heavier at the base

Answer

Unaffected

Question 4

A retaining wall holds back soil. It is usually built thicker at the bottom because the pressure is?

Accepted Answer

Greatest at the bottom

Answer

Greatest at the top

Answer

Uniform top to bottom

Answer

Zero everywhere

Question 5

A weight hangs from two ropes forming a wide V. Compared to ropes hanging nearly vertical, the wide-V ropes carry?

Accepted Answer

More tension

Answer

Less tension

Answer

Equal tension

Answer

No tension

Question 6

Which has the lower center of gravity: a race car or a passenger van of equal weight?

Accepted Answer

The race car

Answer

The van

Answer

Both equal

Answer

Neither has one

Question 7

A diving board is a cantilever. The point of greatest bending stress is?

Accepted Answer

At the fixed support end

Answer

At the free tip

Answer

At the midpoint

Answer

There is no stress