Which of the following is a good fire-resistant stone?

a) Clay

b) Granite

c) Quartz

d) Limestone

What is a freestone?

a) Stone free from impurities

b) Stone that doesn’t require dressing

c) Metamorphic stone

d) Stone free from veins and planes of cleavage

Why are stones with lighter shades of colour preferred?

a) Easy to clean

b) Easily available

c) Don’t spoil the appearance

d) Darker shades are heavier

Hardness is an important parameter considered in the construction of:

a) Slabs

b) Walls

c) Bridges

d) Arches

What is the required specific gravity for a good building stone?

a) Greater than 2.7

b) Less than 3

c) Greater than 3

d) Less than 2.7

What texture should a building stone possess?

a) Loose grains

b) Crystalline structure

c) Cavities

d) Cracks

Seasoning is required for stones.

a) True

b) False

Toughness index of a good stone should be more than:

a) 17

b) 18

c) 13

d) 19

A percentage wear of 3% indicates a good stone.

a) True

b) False

 Your firm has a monopoly with its Valet-I (pronounced val-ay-eye) app. It knows what’s in the user’s closet and what’s in their calendar, and uses artificial intelligence to plan their wardrobe, ordering pieces as needed from the hottest brands to complement their unique and personal style.Your only marginal cost is €1 each time it is downloaded on the Apploid Store. You have correctly calculated that €10 maximizes European profits if you have to charge each consumer the same price,and at that price you have 100,000 downloads per period.

The Apploid store is considering replacing the per-download fee with a per-period fee of €100,000 regardless of the number of downloads. If the Apploid store makes this change: • explain the effect, if any, that it would have on your per-period price and quantity? • explain what effect, if any, that is would have on your per-period profits.