LGS Mixed Practice Test #34

Question 1

Planet closest to Sun:‌​‍

Accepted Answer

Mercury — Mercury.‌​‍

Answer

Venus

Answer

Mars

Answer

Earth

Question 2

Echo is the reflection of sound; to hear a clear echo, reflector must be at least:‌​‍

Accepted Answer

17 m away — Sound at 343 m/s; minimum 0.1 s gap for distinct echo → distance ≥ 17 m.‌​‍

Answer

1 km away

Answer

100 m away

Answer

1 m away

Question 3

DNA structure was discovered by:‌​‍

Accepted Answer

Watson and Crick — James Watson and Francis Crick discovered the double helix structure of DNA in 1953.‌​‍

Answer

Mendel

Answer

Darwin

Answer

Pasteur

Question 4

The country with the world's largest natural gas reserve is:

Accepted Answer

Russia — Russia holds the world's largest proven natural gas reserves.

Answer

Saudi Arabia

Answer

Kuwait

Answer

USA

Question 5

Vaccination principle established by:‌​‍

Accepted Answer

Edward Jenner (1796) — cowpox against smallpox — Smallpox eradicated 1980 (WHO). Pasteur extended to rabies, anthrax.‌​‍

Answer

Pasteur

Answer

Fleming

Answer

Koch

Question 6

Parasympathetic:

Accepted Answer

Rest and digest — Calming.

Answer

Fight-flight

Answer

Emergency

Answer

Running

Question 7

When dealing with a student who is consistently off-task and disruptive despite repeated gentle reminders, what is the next appropriate step in a typical progressive discipline model?

Accepted Answer

D. Having a private conversation with the student to understand the root cause and discuss expectations. — A private conversation with the student is the next logical step in a progressive discipline model after gentle reminders, as it allows the teacher to understand underlying issues and collaboratively set expectations. Immediate severe punishment or public shaming are counterproductive and ignoring the behavior is ineffective.

Answer

A. Immediately sending the student to the principal's office for severe punishment.

Answer

B. Publicly shaming the student in front of their peers to deter future misbehavior.

Answer

C. Ignoring the behavior, hoping it will eventually stop on its own.

Question 8

Punjab was reorganised into Punjab, Haryana, and (UT) Chandigarh in:‌​‍

Accepted Answer

1966 — Punjab Reorganisation Act 1966. ‌​‍Haryana became a state on 1 November 1966. Chandigarh made UT (shared capital).

Answer

1971

Answer

1960

Answer

1956

Question 9

In an image editor, pixels are:

Accepted Answer

Small rectangular units of colour that make up a raster image — Every digital image is composed of pixels (picture elements).

Answer

Tools

Answer

File format

Answer

Layers

Question 10

E-commerce means:‌​‍

Accepted Answer

Electronic commerce (buying/selling online) — E-commerce = buying and selling goods/services over the internet (Amazon, Flipkart, etc.).‌​‍

Answer

Email communication

Answer

Electronic computing

Answer

Email marketing

LGS Mixed Practice Test #34