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Q:

Which is an invention that improved safety for railway passengers?

A) Air brakes	B) Refrigerated rail cars
C) Time standardization	D) Pullman sleeping cars

Answer & Explanation Answer: A) Air brakes

Explanation:

An invention that improved safety for railway passengers is Air brakes. With the use of air brakes using compressed air, become more effective by preventing many train accidents.

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Filed Under: Inventions
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Q:

ACTH stimulates the adrenal cortex to release corticosteroid hormones.

A) TRUE

B) FALSE

Answer & Explanation Answer: A) TRUE

Explanation:

ACTH means Adrenal Corticotrophic Hormone.

CRH - Corticotrophin Releasing Hormone produced by hypothalamus stimulates the pituitary gland to release the ACTH which in turn produces corticosteroid hormones by adrenal glands.

Hence, the given statement is TRUE.

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Subject: Biology
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

India is the largest producer and consumer of

A) Tea	B) Pulses
C) Sugar	D) All of the above

Answer & Explanation Answer: B) Pulses

Explanation:

We know that, largest producer of tea is China and largest producer of sugar is Brazil. So we can violate options A, C and D.

Hence, India is the largest producer and consumer of Pulses.

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Filed Under: General Awareness
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Q:

when an atom loses an electron it becomes

A) neutron	B) negative ion
C) positive ion	D) none of the above

Answer & Explanation Answer: C) positive ion

Explanation:

If it loses an electron it becomes a positive ion

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Filed Under: Physics
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Q:

The sum of the present ages of a father and his son is 70 years. Five years ago, father's age was 5 times the age of the son, so now the son's age will be?

A) 12	B) 14
C) 15	D) 19

Answer & Explanation Answer: C) 15

Explanation:

Father Son

5years ago the age of the father & son 5X X

present the age of the father & son 5X+5 X+5

(present age of father) + (present age of son) = 70

(5x+5) + (x+5) = 70

Then you will get X = 10

Present age of the son (x+5) = 15

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Filed Under: Problems on Ages
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Q:

The first woman to receive Bharat Ratna?

A) Mother Teresa	B) M.S Subbulakshmi
C) Indira Gandhi	D) Lata Mangeshkar

Answer & Explanation Answer: C) Indira Gandhi

Explanation:

Indira Gandhi became the first woman to receive the Bharat Ratna award in 1971.

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Filed Under: Famous Personalities
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Q:

A master plan is devised for

A) Long-range goals	B) Emergencies
C) Short-term goals	D) Investments

Answer & Explanation Answer: A) Long-range goals

Explanation:

A master plan is devised for long-range goals.

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Filed Under: Indian Economy
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Q:

What happens at the synapse between two neurons?

A) electrical signals are converted into chemical	B) chemical signals are converted into physical
C) physical signals are converted into chemical	D) None of the above

Answer & Explanation Answer: A) electrical signals are converted into chemical

Explanation:

At the synapse between two neurons, electrical signals are converted into chemical signals. A synapse is the gap between the two neurons.

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Filed Under: Biology
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