CLASS SECTION/SCHEDULE (FRI-AM, FRI-PM, SAT-AM, SAT-PM, SUN-AM, SUN-PM)

1.

A

B

C

D

None

2.

100g of water is mixed to 150g of alcohol (ρ = 790 kg/m^3). Calculate the specific gravity of the total mixture.

A. 1.862

B. 0.963

C. 0.286

D. 0.862

A

B

C

D

None

3.

A 60-ton rail car moving at 1 mile/hr. is instantaneously coupled to a stationary 40-ton rail car. What is the speed of the coupled cars?

A. 0.14 m/s

B. 0.21 m/s

C. 0.6 m/s

D. 0.28 m/s

A

B

C

D

None

4.

A

B

C

D

None

5.

If a 10kg piece of copper falls 100m, how much heat might be produced?

A. 3.81 kCal

B. 32 BTU

C. 2300 Cal

D. 9.41 kJ

A

B

C

D

None

6.

A

B

C

D

None

7.

A barometer reads 760 mm Hg and a pressure gage attached to a tank reads 850 cm of Oil (sp.gr. 0.80). What is the absolute pressure in the tank in kPa?

A. 168.1 kPa

B. 186.1 kPa

C. 118.6 kPa

D. 161.8 kPa

A

B

C

D

None

8.

A volume of 400 cc of air at a pressure of 740 mm Hg abs and a temperature of 18°C. What will be the volume at 760 mm Hg and 0°C?

A. 376cc

B. 326cc

C. 356cc

D. 366cc

A

B

C

D

None

9.

A

B

C

D

None

10.

A 50g mass hangs at the end of the spring. When 20 grams more are added to the end of the spring, it stretches 7cm more. Find the spring constant

A. 2.8

B. 2.9

C. 4.3

D. 2.5

A

B

C

D

None

11.

A spring stretches 0.40m when a 2kg mass is hung from it. The spring is stretched an additional 0.20m from this equilibrium point and released. Determine the spring constant

A. 47 N/m

B. 43.4 N/m

C. 49 N/m

D. 67 N/m

A

B

C

D

None

12.

A spring stretches 0.40m when a 2kg mass is hung from it. The spring is stretched an additional 0.20m from this equilibrium point and released. Determine the kinetic energy when the mass is 0.10m from its equilibrium position.

A. 0.98 J

B. 0.245 J

C. 0.735 J

D. 0.560 J

A

B

C

D

None

13.

A wire carries a current of 10A. At what distance from the wire will a magnetic field of 8.0 x 10-4 T be produced?