Technology - Practice Test

[#126] Experts say the healthiest way to view a computer monitor is by

(A) Placing it 18 to 30 inches away from your eyes

(B) Viewing from a darkened room

(C) Adjusting the screen for maximum contrast

(D) Using special glasses that filter out UV rays

Correct Answer

(A) Placing it 18 to 30 inches away from your eyes

[#127] Name the terminals of a BJT.

(A) Drain, Gate, Source

(B) Positive, Negative, Neutral

(C) Anode, Cathode, Triode

(D) Emitter, Base, Collector

Correct Answer

(D) Emitter, Base, Collector

[#128] What do you call a computer on a network that requests files from another computer?

(A) A client

(B) A host

(C) A router

(D) A web server

Correct Answer

(A) A client

[#129] In which decade were the first successful diode and triode vacuum tubes invented?

(A) 1800s

(B) 1880s

(C) 1890s

(D) 1900s

Correct Answer

(D) 1900s

Explanation

Solution: In 1904, John Ambrose Fleming invented the first practical electron tube called the 'Fleming Valve', which is a diode rectifier. In 1906, Lee de Forest invented the audion later called the triode, which provided signal amplification.

[#130] RAM stands for

(A) Random Access Memory

(B) Really Annoying Machine

(C) Read A Manual

(D) Real Absolute Memory

Correct Answer

(A) Random Access Memory

Technology - Study Mode

[#126] Experts say the healthiest way to view a computer monitor is by

Correct Answer

[#127] Name the terminals of a BJT.

Correct Answer

[#128] What do you call a computer on a network that requests files from another computer?

Correct Answer

[#129] In which decade were the first successful diode and triode vacuum tubes invented?

Correct Answer

Explanation

[#130] RAM stands for

Correct Answer