Exams Questions and Answers

Q:

Which physical quantity is measured in 'siemens'?

A) Electric potential	B) Electrical conductance
C) Magnetic flux	D) Refractive index

Answer & Explanation Answer: B) Electrical conductance

Explanation:

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT

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Q:

If $\cot^{2} A - \cos^{2} A = x$ , then value of x is

A) tan2Asec2A	B) cotAcosA
C) cot2Acos2A	D) tanAsecA

Answer & Explanation Answer: C) cot2Acos2A

Explanation:

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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

The place where the river meets the sea is called

A) Delta	B) Sediment
C) Tributary	D) Estuary

Answer & Explanation Answer: D) Estuary

Explanation:

The place where the river meets the sea or ocean is called as Estuary.

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Filed Under: General Science
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Q:

Which best describes a gene?

A) a segment of chromosomal DNA	B) tightly coiled strands of DNA
C) different allele forms of a trait	D) None of the above

Answer & Explanation Answer: A) a segment of chromosomal DNA

Explanation:

Gene is a hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism.

In short it is a piece or segment of chromosome.

Genes undergo mutation when their DNA sequence changes.

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Filed Under: Biology
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Q:

A protein that acts as a hormone is

A) Estrogen	B) Insulin
C) Both A & B	D) None of the above

Answer & Explanation Answer: B) Insulin

Explanation:

A protein that acts as a hormone is INSULIN.

Insulin is a peptide hormone produced by beta cells of the pancreatic islets; it is considered to be the main anabolic hormone of the body. Insulin helps keeps your blood sugar level from getting too high or too low.

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Filed Under: General Science
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Q:

Bleaching powder is used in drinking water as

A) Disinfectant	B) Antibiotic
C) Coagulant	D) Antiseptic

Answer & Explanation Answer: A) Disinfectant

Explanation:

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Filed Under: Chemistry
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Q:

Which of these instruments is used to measure the wind speed?

A) Anemometer	B) Inclinometer
C) Fathometer	D) Calorimeter

Answer & Explanation Answer: A) Anemometer

Explanation:

Anemometer is the instrument that is used for measuring the speed of wind or any gas currents.

Which_of_these_instruments_is_used_to_measure_the_wind_speed1560165843.jpg image

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Filed Under: Physics
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Q:

An item is sold at two successive gains of 30% and 20%. If the final selling price is Rs 31200, then what is the cost price (in Rs)?

A) 15000	B) 20000
C) 22250	D) 24000

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