Tag: science & technology

1080p refers to 1080 lines of vertical resolution in a progressive scan display. The 'p' stands for progressive, meaning all lines are drawn sequentially. 1080 horizontal scan lines (option C) is also essentially correct because in this context, horizontal scan lines and lines of vertical resolution refer to the same thing. 1080 vertical scan lines (option D) would be incorrect because scan lines are horizontal, not vertical. The key is understanding that 1080p describes vertical resolution and progressive scanning.

This is a numeral manipulation puzzle. The equation 101 - 102 = 1 is currently incorrect (it equals -1). Moving the numeral '2' upward transforms it into an exponent: 101 - 10² = 1, which is mathematically correct (101 - 100 = 1). This is a creative lateral thinking puzzle that requires visualizing how to rearrange numerals rather than standard arithmetic operations.

This is a rate problem. If 1.5 hens lay 1.5 eggs in 1.5 days, then 1 hen lays 1.5 eggs in 1.5 days (dividing everything by 1.5). So in 1 day, 1 hen lays (1.5/1.5) = 1 egg per day from the 1.5-day rate. The correct answer is 2/3 eggs because: the rate is 1 egg per 1.5 days, so per day it's 1/1.5 = 2/3 eggs. The key is understanding proportional relationships and reducing the complex rate to a simpler form.

CPP stands for Cerebral Perfusion Pressure, which is the pressure gradient driving cerebral blood flow. It is calculated as Mean Arterial Pressure minus Intracranial Pressure and is crucial in neurocritical care. Option A (Perfection) is nonsensical in medical context. Option C incorrectly uses Palsy (a neurological condition) as a pressure term. Option D incorrectly combines Perfusion with Palsy.

TB is the standard medical abbreviation for Tuberculosis, an infectious disease caused by Mycobacterium tuberculosis bacteria. It primarily affects the lungs (pulmonary TB) but can affect other organs (extrapulmonary TB). Options A, B, and D incorrectly add anatomical terms - TB is not specific to body parts or blood.

AIDS stands for Acquired Immune Deficiency Syndrome, caused by HIV virus that destroys CD4+ T cells, weakening the immune system. It is transmitted through specific bodily fluids. Option B (artificial insemination) is a fertility procedure abbreviation. Option C incorrectly uses Sickness instead of Syndrome. Option D has an incorrect first word.

SIDS stands for Sudden Infant Death Syndrome, the unexplained death of a baby under 1 year during sleep. It remains a mystery despite research. Option A (incident) is incorrect - it's about infants, not incidents. Option B (disease) is wrong - no disease process is identified. Option C (infact) is a typo for infant.

In biology and medicine, BBB stands for the blood-brain barrier. It is a highly selective semipermeable border that prevents solutes in the circulating blood from non-selectively crossing into the central nervous system.

CDMA stands for Code Division Multiple Access, a channel access method used by various radio communication technologies. It allows multiple transmitters to send information simultaneously over a single communication channel. The key is that it uses 'Code Division' not 'Drive', 'Disk', or 'Delivery'.

EEPROM stands for Electrically Erasable Programmable Read-Only Memory. The key distinction is that it's 'Electrically-Erasable Programmable' and 'Read-Only Memory' not 'Ram-Only'. Option D describes EPROM which requires UV light to erase, while EEPROM can be erased electronically. The spelling 'Electronically' vs 'Electrically' is a common variation.