Past Questions And Answers
In 2014, Amelia Quon and her team at NASA set out to build a helicopter capable of flying on Mars. Because Mars’s atmosphere is only one percent as dense as Earth’s, the air of Mars would not provide enough resistance to the rotating blades of a standard helicopter for the aircraft to stay aloft. For five years, Quon’s team tested designs in a lab that mimicked Mars’s atmospheric conditions. The craft the team ultimately designed can fly on Mars because its blades are longer and rotate faster than those of a helicopter of the same size built for Earth. According to the text, why would a helicopter built for Earth be unable to fly on Mars?
- A) Because Mars and Earth have different atmospheric conditions
- B) Because the blades of helicopters built for Earth are too large to work on Mars
- C) Because the gravity of Mars is much weaker than the gravity of Earth
- D) Because helicopters built for Earth are too small to handle the conditions on Mars
The difference between the Gross National Products (GNP) and the Gross Domestic Product (GDP) is
- A. total interest payment
- B. net income generated internally
- C. total national savings
- D. net income from abroad
Average product is less than marginal product when
- A. there is constant returns to scale
- B. there is increasing returns to scale
- C. there is decreasing returns to scale
- D. diminishing returns set in
An orientation that assumes that consumers will prefer products that are widely available and inexpensive is
- A. product concept
- B. selling concept
- C. production concept
- D. marketing concept
As ............. of you as can come are welcome
- A. each
- B. any
- C. many
- D. more
A 100 kg device is pulled up a plane inclined at 30° to the horizontal with a force of 1000 N. If the coefficient of friction between the device and the surface is 0.25, determine the total force opposing the motion. [ g = 10 ms-2]
- A. 283.5N
- B. 975.0N
- C. 216.5N
- D. 716.5N
Talitha cumi means
- A) Dorcas, arise
- B) Little girl, I say to you, arise
- C) Thy will be done
- D) Jesus is coming
A man buys recharge card for N500. He sells it for N430. What is the percentage loss?
- A. 7%
- B. 9%
- C. 14%
- D. 20%
Which of the elements in the table below would react more readily with chlorine?
Element | Ionization energy (KJ \(mol^{-1} \times 10^{-3}\)) |
| W | 12.0 |
| X | 21.0 |
| Y | 106.0 |
| Z | 200.0 |
- A. Y and Z only
- B. X and Z only
- C. W and X only
- D. W and Z only
Import duties will increase total expenditure on imports if the demand for imports is?
- A. elastic
- B. inelastic
- C. infinitely elastic
- D. derived