CIE Flashcards
In what quadrants do the secant and cosecant of an angle have the same algebraic sign?
a. I and II b. I and III c. II and III d. II and IV
Answer: b. I and III
The lengths of side AB and side BC of a scalene triangle ABC are 12 cm and 8 cm respectively. The size of angle C is 59o. Find the length of side AC.
a. 12 b. 14 c. 16 d. 18
Answer: b. 14
Let x be the length of side AC. Use the cosine law 122 = 82 + x2 - 28x*cos(59o) Solve the quadratic equation for x: x = 14.0 and x = -5.7
Find the equivalent resistance for the circuit shown below
a. 13.9 ohms b. 12.6 ohms c. 11.1 ohms d. 10.7 ohms
Answer: c. 11.1 ohms
Find the current through the 5 volt source by simplifying the resistors to a single equivalent resistance
a. 220 mA b. 210 mA c. 200 mA d. 190 mA
Answer: b. 210 mA
On the highway at speed 55 mi/h (88.5 km/h), you close your eyes for half a second during a sneeze. How far do you travel while your eyes are closed in meters?
a. 10.7m b. 11.5m c. 12.3m d. 13.1m
Answer: c. 12.3 m
A projectile is launched upward from level ground at an angle of 60o with the horizontal. It has an initial velocity of 45m/s. How long will it take before the projectile hits the ground?
a. 4.1s b. 7.95s c. 5.8s d. 9.53s
Answer: b. 7.95s
Environmental Engineering: The disease caused by severe mercury poisoning characterized by ataxia, numbness of the hands & feet, and weak muscles.
a. Itai-Itai Disease b. Chagas Disease c. Minamata Disease d. Parkinson’s Disease
Answer: c. Minamata Disease
An electrochemical process used in the removal of colloidal matter in wastewater through the addition of an agent that will reduce the electrostatic charges surrounding the colloidal matter.
a. Disinfection b. Chemical Flocculation c. Ozonization d. Coagulation
Answer: d. Coagulation
.chemistry: A 600 mL sample of nitrogen is heated from 27 °C to 77 °C at constant pressure. What is the final volume?
a. 650 mL b. 700 mL c. 750 mL d. 800 mL
Answer: b. 700 mL
A sample of helium gas at 25°C is compressed from 200 cm3 to 0.240 cm3. Its pressure is now 3.00 cm Hg. What was the original pressure of the helium?
a. 1.4 x 10-3 cm Hg b. 2.5 x 10-3 cm Hg c. 3.6 x 10-3 cm Hg d. 4.7 x 10-3 cm Hg
Answer: c. 3.6 x 10-3 cm Hg
Thermodynamics: 11. A balloon filled with gas expands its volume by 2.0 L. If the pressure outside the balloon is 0.93 bar and the energy change of the gas is 450J, how much heat did the surroundings give the balloon?
a. 636 J b. 734 J c. 832 J d. 930 J
Answer: a. 636 J
- There is a house hold heater that operates at 4 V and at 35 Ω and is used to heat up 15g of copper wire. The specific heat capacity of copper is 24.440 J/mol/K. How much time is required to increase the temperature from 25˚C to 69˚C?
a. 34512 secs. b. 32891 secs c. 37541 secs d. 35296 secs.
Answer: d. 35296 secs
Engineering Ethics: 13. A newly certified industrial engineer has applied for a promotion at a firm she has been working at for several years. During an interview for the new position, she is asked to contrast her qualifications with other registered engineers at the firm who have applied for the same position. She should
a. withdraw her application for the position.
b. give a full accounting of all the ways her ability and experience are superior to those of the other applicants.
c. demand to speak to the interviewer’s supervisor
d. decline to compare her qualifications but offer to describe them.
Answer: d. decline to compare her qualifications but offer to describe them.
Engineers shall acknowledge their errors after consulting with their employers or clients.
a. True b. False
Answer: b. False
accounting: 15. Assets which get exhausted to the extent of extraction are called:
a. Tangible asset b. Intangible asset c. Wasting asset d. Fictitious asset
Answer: c. Wasting Asset
- Loss leads to reduction in:
a. Liability b. Capital c. Income d. Asset
Answer: b. Capital