BIMAN is the national airline of:
- (A) Sri Lanka
- (B) Cambodia
- (C) Afghanistan
- (D) Bangladesh
- (D) Bangladesh
BIMAN Bangladesh Airlines operates as the national flag carrier of Bangladesh. It was established in 1972 and operates from its base in Dhaka, Bangladesh, at Shahjalal International Airport (DAC). Biman operates flights to several domestic and international routes in Asia, the Middle East, and Europe.
Time required for a computer to locate and transfer data is called:
- (A) Analogue time
- (B) Basic time
- (C) Starting time
- (D) Access time
- (D) Access time
Access time is the time it takes for the computer to locate and move the data it is processing. Access time is the total time from the start of the request to move the data until the completion of that move.
The shape of our Milky Way Galaxy (MWG) is:
- (A) Irregular
- (B) Spiral
- (C) Elliptic
- (D) Circular
- (B) Spiral
The Milky Way is a barred spiral type of galaxy. In the Milky Way, there is a cluster of stars that form a dense, bar-shaped structure, and there is a spinning, flat disk structure that extends outward with the spiral arms. Also, there is a bulge of older stars in the Milky Way, and then there is the dark matter halo that surrounds the system. The diameter of the Milky Way ranges from 100,000 to 120,000 light-years.
A device which encodes characters by the depression of keys is known as:
- (A) Printer
- (B) Keyboard
- (C) Mouse
- (D) Hard drive
- (B) Keyboard
A keyboard is a device that encodes characters when its keys are pressed. As a primary method of inputting information into a computer, a keyboard helps convert the characters typed into a computer by translating them into electrical signals or digital data, which represent letters, numbers, and symbols that a computer can process.
Mixture of two metals is called:
- (A) Dispersant
- (B) Alloy
- (C) Amalgam
- (D) Consolidate
- (B) Alloy
An alloy is a combination of two or more metals, or a combination of a metal and another element. Most commonly, these metals are mixed together in a molten form to create a solid combination that has enhanced properties, such as increased strength, a lower melting point, or improved resistance to corrosion, compared to the individual metals.
- Some common alloys are as follows:
- – Brass: Copper and Zinc
- – Bronze: Copper and Tin
- – Stainless Steel: Iron, Chromium, and Nickel
- – Solder: Tin and Lead
- – Pewter: Tin, Copper, and Antimony
- – Sterling Silver: Silver and Copper
How far is the Dead Sea before Mediterranean Sea?
- (A) 250 meters
- (B) 300 meters
- (C) 400 meters
- (D) 1000 meters
- (C) 400 meters
The Dead Sea is approximately 80 kilometers or 50 miles east of the Mediterranean Sea. This is still 430-440 meters or 1,410-1,440 feet below sea level (400 meters is the standard historical and general-knowledge value used to describe its elevation relative to the Mediterranean Sea (sea level). It is still the lowest point on the face of the Earth.
The brightest planet in the solar system is:
- (A) Saturn
- (B) Venus
- (C) Mars
- (D) Neptune
- (B) Venus
VENUS is the brightest planet in the solar system and shines so brightly that it becomes the third brightest object in the sky after the Sun and Moon. Its bright appearance is due to its thick and highly reflective atmosphere containing sulfur dioxide and sulfuric acid clouds. You usually observe it at the horizon in the early morning or at dusk as a sharp point of light like a star.
Oxygen by volume has a presence in the atmosphere of about:
- (A) 10%
- (B) 21%
- (C) 30%
- (D) 45%
- (B) 21%
Oxygen makes up about 20.95% by volume in the Earth’s atmosphere, which is rounded to 21%. It is the second most abundant component in dry air, behind nitrogen at about 78%.
Dynamite was discovered by:
- (A) Daimler
- (B) Mosley
- (C) Alfred Nobel
- (D) Freud
- (C) Alfred Nobel
Alfred Nobel was a Swedish chemist, engineer, and inventor best known for the invention of dynamite in 1867. He had patented an explosive made from nitroglycerin, which was much safer and more stable than other explosives at the time. He had a total of 355 patents to his name, including the blasting cap.
The area inside a computer frame and auxiliary where data and instructions are called:
- (A) Memory
- (B) Interpreter
- (C) Recorder
- (D) Hopper
- (A) Memory
The internal memory of the computer, which is also called primary memory or main memory and often referred to by the name RAM, is where the data and the program are kept ready to be used by the processor at any time.
- Main Memory (RAM): Temporary storage for active data.
- Internal Memory: Another term for primary storage.
- Primary Storage: Directly accessed by the CPU.