The negative charges associated with smectite clay crystals are due mostly to ________
A) substitution of Al for Mg in the tetrahedral sheet
B) high pH associated with the formation of the mineral
C) substitution of Si for Al in the tetrahedral sheet
D) OH groups on the external surface of the crystal
E) isomorphous substitution of Mg for Al in the octahedral sheet
E
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The amount of voltage produced by a thermocouple is determined by what two things?
What will be an ideal response?
Which CAD team members are typically assigned tasks of making corrections to the drawings?
A. Drafting clerks B. Junior CAD technicians C. CAD technicians D. Outside consultants
The heat input to the Brayton cycle is nearest:
The pressure and temperature at the inlet to the ideal Brayton cycle shown, are 100 kPa and 10ºC. It has a compression ratio of 8. The maximum temperature in the cycle is 1000ºC. Assume constant specific heats from Table B-2 for all
calculations.
A) 800 kJ/kg
B) 760 kJ/kg
C) 720 kJ/kg
D) 680 kJ/kg
ASE-Style Multiple Choice On long tears where backup is difficult, small ____ can be made to hold the two sides in place before doing the permanent weld.
A. bolts B. tack welds C. strut rods D. nuts