Explanation

Explanation

• In a 1:5 cement mortar ratio, the first number represents cement.
• The second number 5, represents sand.
• So, 1 part cement: 5 parts sand.
• This ratio is commonly used in brick masonry and plastering, depending on specifications.

Last updated by NS on 14-8-2026

Explanation

• Granite is a strong and durable building stone.
• It has high compressive strength.
• It can withstand heavy loads from the bridge structure.
• It is resistant to weathering and abrasion.

Last updated by NS on 14-8-2026

Explanation

• Measured length = 250 m
• Standard chain length = 20 m
• Chain is 10 cm longer = 0.10 m
• Actual chain length = 20 + 0.10 = 20.10 m

Formula:

True Length=Measured Length×Actual Chain Length/Standard Chain Length​

Substitute:

=250×20.10/20

​ $$=250\times 1.005$$

=251.25 m

Last updated by NS on 14-8-2026
​

Explanation

Use the formula: (a+b)^2=a^2 +2ab+b^2

(102)^2 =(100+2)^2

=10000+400+4

=10,404

Explanation

• A series of steps is called a staircase, stairway, or a flight of stairs

Additional information:

• Tread: The flat, horizontal top surface where you place your foot.
• Riser: The vertical part that forms the gap between one step and the next.
• Nosing: The front, rounded edge of the tread that sticks out over the riser

Last updated 14 August 2026 by NA

Explanation

• The correct expression is "blind in one eye."
• Use in to describe blindness affecting a particular eye.
• Correct sentence: "He is blind in one eye."

Examples:

• The old man is blind in one eye.
• The boy is blind in one eye.

Last verified on 19-07-2026

Explanation

• In the standard MS Word Font Size toolbar list, sizes range from 8 to 72.
• These are the default preset font sizes shown in the dropdown menu.
• However, Word manually supports font sizes from 1 to 1638.
• Shortcut to change font size: Ctrl + Shift + P.
• Font size is measured in points (pt).

Last verified on 29-05-2026

Explanation

• The ozone layer protects the Earth from the sun.
• It is a part of the atmosphere that absorbs most of the harmful ultraviolet light from the sun.
• It sits in the stratosphere.
• It is about 9 to 18 miles above the Earth.
• It stops dangerous UV rays from hurting living things.

Last updated by NS on 14-8-2026

Explanation

• The ALU (Arithmetic Logic Unit) is a core component of the CPU (Central Processing Unit),
• And the CPU itself is the main processing chip and core component of a computer system (or computer hardware architecture).