Q:

A solid sphere of radius 6 cm is melted and re-casted into a hollow cylinder of uniform thickness. If the external radius of the base of the cylinder is 5 cm and its height is 32 cm, find the uniform thickness of the cylinder ?

A) 3 cm	B) 1.5 cm
C) 1 cm	D) 2.5 cm

Answer & Explanation Answer: C) 1 cm

Explanation:

Let, inner radius of cylinder be ‘x’ cm.
4/3 π(6)3 = π × 32 (52 − x2)

or, (4 × 6 × 6 × 6) / (3 × 32) = 25 − x2 or, x2 = 25 − 9
or, x = 4 cm
Hence, thickness = 5 – 4 = 1 cm.

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

0 1465

Q:

In the triangle ABC,∠BAC = 50° and the bisectors of ∠ABC and ∠ACB meets at P. What is the value (in degrees) of ∠BPC?

A) 100	B) 105
C) 115	D) 125

Answer & Explanation Answer: C) 115

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams , GATE

1 1465

Q:

Who discovered malaria causing germs?

A) Christiaan Bernard	B) Charles Louis Alphonse Laveran
C) Dmitry Ivanovsky	D) Martinus William Beijerinck

Answer & Explanation Answer: B) Charles Louis Alphonse Laveran

Explanation:

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Filed Under: Inventions
Exam Prep: Bank Exams

0 1465

Q:

The least preferred technique in the disposal of Municipal Solid Waste is

A) Incineration	B) Composting
C) Land filling	D) Bricketting

Answer & Explanation Answer: D) Bricketting

Explanation:

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Filed Under: General Science
Exam Prep: Bank Exams

1 1465

Q:

Indian Air Force (IAF) for first time was participated in multinational air exercise_______________ 2018 (PB-18) in Australia hosted Royal Australian Air Force (RAAF).

A) Desert Strike	B) Emerald Mercury
C) Yudh Abyas	D) Nomadic Elephant

Answer & Explanation Answer:

Explanation:

Indian Air Force (IAF) for first time will participate in multinational air exercise Pitch Black – 18 (PB18) in Australia hosted Royal Australian Air Force (RAAF). It will be three week multi-national large force employment exercise (27 July to 17 August 2018) conducted from RAAF Base Darwin and RAAF Base Tindal.

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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT

0 1465

Q:

Bubbles of air rise up through liquids due to

A) Surface tension and adherence	B) viscosity and buoyancy
C) air current over the liquid and buoyancy	D) Up thrust and surface tension

Answer & Explanation Answer: B) viscosity and buoyancy

Explanation:

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Filed Under: Physics
Exam Prep: Bank Exams

2 1465

Q:

What is the unit of the physical quantity "Magnetic field strength"?

A) joule per meter	B) newton per meter
C) kelvin per meter	D) ampere per meter

Answer & Explanation Answer: D) ampere per meter

Explanation:

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Filed Under: Physics
Exam Prep: Bank Exams

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Q:

What is the SI unit of electric current?

A) Newton	B) Joule
C) Ampere	D) Watt

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