Discuss four alternatives that increase the use and application of conventional concrete
Discuss the creep response of concrete structures. Provide examples of the effect of creep on concrete structures.
Discuss the change in volume of concrete at early ages
Discuss five different methods of concrete curing
0.675kg of gas at 1.4 MN/m2 and 2800C is expanded to four times the original volume according to the law PV1.3 =C Determine:
(a) the original and final volume of the gas,
(b) the final pressure of the gas
(c) the final temperature of the gas
Take R=0.287Kj/kg K
0.1m3 of gas is compressed from pressure of 120KN/m2 and temperature 250C to a pressure of 1.2MN/m2 according to the law PV1.2 = constant.
Determine,
(a) The work transferred during the compression,
(b) The change in internal energy,
(c) The heat transferred during the compression
Assume , cv=0.72kJ/kgK and R=0.285KJ/kgK
Two equal 5-module, 20 degree gears mesh
together such that the addendum circle of each
gear passes through the interference point of the
other. If the contact ratio is 1.622, calculate the
number of teeth and the outside radius on each
gear.
For the network
a. Write the nodal equations for the networks in Figure given.
b. Solve for the nodal voltages.
c. Find the magnitude and polarity of the voltage across each resistor.
Create an illustration of a series circuit that connects a battery and five capacitors and with a total capacitance of 3/7 F. The total charge in the circuit must be 2/9 C.
The following data are given in connection with the series - parallel circuit of Figure 1; E = 97.5volts, R1= 18 ohms, R2 = 9 ohms, R3= 16 ohms, R4= 14 ohms, R5 =7 ohms, I₂=2.5 amp. Calculate (a) the resistance of R6, (b) the total equivalent resistance of the circuit, (c) the total power.