If a digital multimeter displays 000 when reading amperage, what should the technician do to get a more accurate reading

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.

With increases in magnification, which of the following occur? a. the field of view decreases. b. the ambient illumination decreases. c. the larger parts can be measured. d. the eyepiece must be raised.