set 5 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 5 EXERCISES
The following question based on mechanics (mass, force, acceleration, work, energy, momentum, velocity) topic of general science mcq
(a) acceleration
(b) mass
(c) weight
(d) potential energy
The correct answers to the above question in:
Answer: (b)
At the centre of the earth, weight is zero as g = 0 at the centre of the earth.
weight = mg = 0 and Potential energy = mgh
But mass ≠ 0 as mass is the quantity of matter.
Practice mechanics (mass, force, acceleration, work, energy, momentum, velocity) (set 5) Online Quiz
Discuss Form
Read more mechanics work and energy Based General Science Questions and Answers
Question : 1
Consider the following features of newer models of motor cars:
- Radial tyres
- Streamlined body
- Multipoint fuel injection
- Catalytic converter with exhaust
a) 2, 3 and 4
b) 1 and 2
c) 2 and 3
d) 1, 3 and 4
Answer »Answer: (c)
A “streamlined” design is one in which objects that move through a gas or liquid are shaped to match these lines, and therefore, reduce the energy required to produce that motion.
Multi-point fuel injection system injects fuel into individual cylinders, based on commands from the ‘onboard engine management system computer—popularly known as the Engine Control Unit/ECU.
These techniques result not only in better ‘power balance’ amongst the cylinders but also in higher output from each one of them, along with faster throttle response. The other two options radial tyres and catalytic converter with exhaust do not contribute to making the car more fuel efficient.
Question : 2
Which one of the following statements regarding artificial satellite of the earth is incorrect ?
a) The period of revolution is large if the radius of its orbit is large
b) A minimum velocity of 8 km/sec is required by a satellite to orbit quite close to the earth
c) The orbital velocity depends on the mass of the satelllite
d) The height of a geostationary satellite is about 36000 km from earth
Answer »Answer: (c)
$V_O=√{gR}$
i.e., $v_0$ independent of the mass of the satellite.
Question : 3
The wide handle of screw is based upon
a) turning moment of force
b) law of conservation of linear momentum
c) Newton’s second law of motion
d) None of these
Answer »Answer: (a)
Question : 4
A person is sitting in a car which is at rest. The reaction from the road at each of the four wheels of the car is R. When the car runs on a straight level road, how will the reaction at either of the front wheels vary?
a) It will be equal to R
b) It will be less than R
c) It will be greater than R
d) It shall depend on the material of the road
Answer »Answer: (b)
Verbal Reasoning
Question & Answer Quiz
Non Verbal Reasoning
Question & Answer Quiz
Quantitative Aptitude
Question & Answer Quiz
Computer MCQ
Question & Answer Quiz
General English
Question & Answer Quiz
History GK
Question & Answer Quiz
Polity GK
Question & Answer Quiz
Geography GK
Question & Answer Quiz
Economy GK
Question & Answer Quiz
General Awareness GK
Question & Answer Quiz
Recently Added Subject & Categories For All Competitive Exams
Most Important Antonyms Vocabulary - IBPS Clerk Prelims 2024
Latest Antonyms multiple choice questions and answers with free PDFfor IBPS Clerk Prelims 2024. English Vocabulary practice exercise for all bank exam
Continue Reading »
Syllogism Practice Questions Answers PDF - IBPS Clerk 2024
Practice Verbal Reasoning Syllogism multiple choice questions and answers with Fully solved explanation, PDF for the IBPS Clerk Prelims 2024 Bank Exam
Continue Reading »
IBPS Clerk Prelims 2024 Synonyms Questions Solved Answers
Most important IBPS Clerk Prelims 2024 Synonyms and Antonyms multiple choice questions and answers with detailed solutions, English vocabulary PDF Download
Continue Reading »
New Cloze Test Questions and Answers PDF - IBPS Clerk 2024
The most important Cloze Test questions with detailed answers for upcoming IBPS Clerk prelims 2024. Latest English verbal ability practice MCQs, PDF
Continue Reading »