JMI 6th Entrance Paper 2019 answer key and explanation

JMI 6th Entrance Paper 2019 – JMI Previous Year Question Paper 2019 with answer key and explanation

Science & Environmental Science

1. A flat surface with one end higher than the other is

(A) Flag pole
(B) Inclined plane
(C) Long rod
(D) Wheel

Answer:

(B) Inclined plane

Explanation:

An inclined plane is a simple machine defined as a flat supporting surface tilted at an angle, with one end higher than the other.

2. Work = ______ X Distance

(A) Force
(B) Time
(C) Weight
(D) Mass

Answer:

(A) Force

Explanation:

The formula for work in physics is Work = Force × Distance.

3. The smallest microorganisms is

(A) Bacteria
(B) Virus
(C) Fungi
(D) Protozoa

Answer:

(B) Virus

Explanation:

Viruses are the smallest type of microorganism.

4. While orbiting the earth in spaceships, weightlessness is experienced due to

(A) Inertia
(B) Acceleration
(C) Centre of gravity
(D) Gravitational force being zero

Answer:

(D) Gravitational force being zero

Explanation:

In orbit, the constant freefall of the spaceship creates the sensation of weightlessness. Among the given choices, the concept of the gravitational force being zero is the intended answer to describe this phenomenon.

5. Which of these micro organisms does not harm plants?

(A) Protozoa
(B) Fungi
(C) Bacteria
(D) Virus

Answer:

(A) Protozoa

Explanation:

Fungi, bacteria, and viruses are common causes of plant diseases. While some protozoa can be pathogens, many are a harmless part of the soil ecosystem.

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