Umar Draz, Author at DocMCQs

When a ball is thrown vertically upward, what is the velocity at the highest point?

A. Zero

B. Constant

C. Maximum

D. Minimum

Correct answer is: A. Zero

At the highest point, velocity becomes zero before the ball starts descending due to gravity.

A generator converts which type of energy into electrical energy?

A. Heat

B. Chemical

C. Solar

D. Mechanical

Correct answer is: D. Mechanical

Generators convert mechanical energy into electrical energy through electromagnetic induction.

The salivary glands produce which enzyme?

A. Pepsin

B. Ptyalin

C. Trypsin

D. None

Correct answer is: B. Ptyalin

Salivary glands secrete ptyalin (salivary amylase), which helps in the digestion of starch.

What was the name of the first animal successfully cloned in Scotland?

A. Goat

B. Dog

C. Sheep

D. Cow

Correct answer is: C. Sheep

Dolly the Sheep was the world’s first mammal cloned from an adult cell in 1996 at the Roslin Institute, Scotland.

The mixture of hydrogen, methane, and carbon monoxide is called:

A. Coal gas

B. CNG

C. Biogas

D. Natural gas

Correct answer is: A. Coal gas

Coal gas is a mixture of hydrogen, methane, and carbon monoxide used historically as a fuel.

Which key can be used to start a presentation from the beginning in PowerPoint?

A. F5

B. Esc

C. F7

D. F2

Correct answer is: A. F5

Pressing F5 starts a PowerPoint slide show from the beginning.

What happens when you convert a Word file into a PDF document?

A. It appears as read-only

B. It shares to everyone automatically

C. It reduces the size

D. It can be edited by anyone

Correct answer is: A. It appears as read-only

PDF format preserves formatting and is generally read-only unless editing tools are used.

Ctrl + N is used to:

A. Save Document

B. Open Document

C. Close Document

D. New Document

Correct answer is: D. New Document

Ctrl + N creates a new document in MS Word and other Office applications.

In Excel, which key combination is used to enter a new line in the same cell?

A. Ctrl+Enter

B. Shift+Enter

C. Alt+Enter

D. Ctrl+Shift+Enter

Correct answer is: C. Alt+Enter

In MS Excel, Alt + Enter allows users to insert a line break within a single cell.

Two or more computers connected to each other for sharing information form a:

A. Network

B. Library

C. Server

D. None of these

Correct answer is: A. Network

A network is a group of interconnected computers that share resources and information.

Author name: Umar Draz