Mixed Deck — All DAA Topics Flashcards

If the alarm sounds, all personnel must evacuate. The alarm has not sounded. What follows?

Answer: Personnel are not required to evacuate

The evacuation requirement is triggered only by the alarm; without it sounding, the requirement does not apply.

To lift a 200kg box using a lever, you apply force 4 metres from the fulcrum. The box is 1 metre from the fulcrum. How much effort (force) is required? (Assume g = 10 m/s²)

Answer: 500N

First, calculate the load force: 200kg * 10 m/s² = 2000N. The principle of moments states Effort × Effort Arm = Load × Load Arm. So, Effort × 4m = 2000N × 1m. Effort = 2000 / 4 = 500N.

23 x 19 = 437 24 x 19 = 437 + X therefore X equals?

Answer: 19

Explanation: To find the value of X, we first need to find the product of 24 × 19. 24 × 19 = 456 So, 24 × 19 = 456. Now, we have: 24 × 19 = 437 + X Subtracting 437 from both sides: 456 − 437 = 437 − 437 + X 19 = X

What was the official codename for the GPS project mentioned in the passage?

Answer: NAVSTAR

The second sentence of the passage provides this information: 'Codenamed NAVSTAR, the project was initiated in the 1970s...'.

A reconnaissance plane flies from base to a target at 600 km/h and returns at 400 km/h. What is the average speed for the round trip?

Answer: 480 km/h

Average speed = 2 × 600 × 400 ÷ (600 + 400) = 480000 ÷ 1000 = 480 km/h.

TIMID is to BRAVE as FRUGAL is to?

Answer: EXTRAVAGANT

The words in the first pair are antonyms (opposites). Timid is the opposite of brave. Frugal, meaning saving or sparing, is the opposite of extravagant, which means spending excessively.

Equipment costs $4,500 and is discounted by 20%. What is the final price?

Answer: $3,600

20% of $4,500 = $900; $4,500 − $900 = $3,600.

LAVISH means the same as …

Answer: Excessive

Explanation: Lavish describes something that is abundant or extravagant in quantity or quality. It implies excessive spending or indulgence, contrasting with being frugal, scanty, or sparse, which all denote limited or restrained amounts. Lavish means abundant or extravagant, which is the opposite of frugal, scanty, or sparse.

CAT is to FELINE as NECKLACE is to …

Answer: Jewelry

Explanation: The relationship between "cat" and "feline" is that a cat is a specific type of feline, just as a necklace is a specific type of jewelry. The other options (brooch, trinket, charm) are all types of jewelry or accessories but do not represent the same relationship as "cat" to "feline."

FISH is to SCHOOL as WOLF is to?

Answer: PACK

This is an analogy of collective nouns. A group of fish is called a school, and a group of wolves is called a pack.

A soldier runs 3.5 miles on Monday and 4.25 miles on Tuesday. How many miles did they run in total?

Answer: 7.75 miles

3.5 + 4.25 = 7.75 miles.

The following table shows the number of applications received for four different roles at a military recruitment centre over a five-month period. | Month | Officer Cadet | Technician | Logistics | Infantry | |-----------|---------------|------------|-----------|----------| | January | 150 | 220 | 180 | 350 | | February | 165 | 210 | 190 | 360 | | March | 180 | 240 | 210 | 330 | | April | 170 | 250 | 200 | 310 | | May | 190 | 260 | 220 | 290 | What was the approximate percentage increase in applications for the Officer Cadet role from January to May?

Answer: 26.7%

To calculate the percentage increase, use the formula: ((New Value - Original Value) / Original Value) * 100. For Officer Cadet applications, the Original Value (January) is 150 and the New Value (May) is 190. The calculation is: ((190 - 150) / 150) * 100 = (40 / 150) * 100 = 26.66...%. This is approximately 26.7%.

A base has 360 personnel. One-third are on leave. How many remain on base?

Answer: 240

One-third of 360 = 120 are on leave, so 360 − 120 = 240 remain.

How are technical knowledge standards typically updated in DAA?

Answer: Through periodic review by expert panels incorporating new research and best practices

Professional standards are periodically reviewed and updated by expert panels who incorporate new research findings, technological advances, and evolving best practices.

A seesaw is a classic example of which class of lever?

Answer: Class 1 Lever

A Class 1 lever has the fulcrum (pivot point) positioned between the effort and the load. On a seesaw, the pivot is in the middle, with the effort (person pushing down) on one side and the load (person on the other side) on the other.

Based on the passage, what was the original primary purpose of the Global Positioning System?

Answer: A navigation system for military forces

The first sentence explicitly states, 'The Global Positioning System (GPS) was originally developed by the United States Department of Defense for military use.' This clearly identifies its initial purpose.

1 kilogram = 1000 grams. How many grams are there in 0.7 kilograms?

Answer: 700

Explanation: To find out how many grams are there in 0.7 kilograms, we can use the conversion factor: 1 kilogram = 1000 grams. So, to convert 0.7 kilograms to grams, we multiply 0.7 by 1000: 0.7 kilograms × 1000 grams/kilogram = 700 grams

What is the ideal mechanical advantage of a pulley system with 3 movable pulleys and 1 fixed pulley, where the rope is attached to the fixed support?

Answer: 6

The ideal mechanical advantage (IMA) of a pulley system is typically equal to the number of rope segments directly supporting the load. In a standard block and tackle arrangement, this is equal to the number of pulleys in the system, but more accurately, it's the number of supporting strands. With 3 movable pulleys, there will be 6 supporting strands, giving an IMA of 6.

A car travels at 90 km/h. How long will it take to travel 225 km?

Answer: 2.5 hours

Time = distance ÷ speed = 225 ÷ 90 = 2.5 hours.

If Gear A turns clockwise and is meshed directly with Gear B, which way will Gear B turn?

Answer: Counter-clockwise

When two external gears are meshed directly, they always rotate in opposite directions. Therefore, if Gear A turns clockwise, Gear B must turn counter-clockwise.