1. About Dial Caliper. Nowadays, the dial caliper has become considerably more popular than the venire caliper. The reason is simple: compared to the venire caliper, a dial caliper is much easier to use and read. Additionally, compared to the digital calipers, a dial caliper is more durable. The dial caliper features the beam lock, dial, depth rod, dial calibration lock, main scale, two fixed jaws and two moveable jaws.
Total level of demand for desired goods and services (at any time by all groups within a national economy) that makes up the gross domestic product (GDP) . Aggregate demand is the sum of consumption expenditure, investment expenditure, government expenditure, and net exports.
Changes in aggregate demand are represented by shifts of the aggregate demand curve. An illustration of the two ways in which the aggregate demand curve can shift is provided in Figure . A shift to the right of the aggregate demand curve. from AD 1 to AD 2, means that at the same price levels the quantity demanded of real GDP has increased.