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Practice MCQ Questions and answers on General Science-GK

Learn and practice General Knowledge questions and answers on General Science with very easy and understandable explanations. GK questions are very helpful different type of competitive exams. Page-8 section-1

Each section contains 100 MCQs on General Science .
71
Light year is a measurement of
Discuss
Answer & Solution
Answer: Option C
Solution:
Light year is a measurement of stellar distances.
72
Very small time intervals are accurately measured by
Discuss
Answer & Solution
Answer: Option C
Solution:
Atomic clocks are the most accurate time and frequency standards known, and are used as primary standards for international time distribution services, to control the wave frequency of television broadcasts, and in global navigation satellite systems such as GPS.
73
One kilometer is equal to how many miles?
Discuss
Answer & Solution
Answer: Option D
Solution:
One kilometer is equal to 0.62 mile.
74
Kilohertz is a unit which measures
Discuss
Answer & Solution
Answer: Option B
Solution:
Kilohertz is a unit which measures electromagnetic radio wave frequencies.
75
One horse power is equal to
Discuss
Answer & Solution
Answer: Option A
Solution:
Electrical equivalent of one horsepower is 746 watts in the International System of Units (SI), and the heat equivalent is 2,545 BTU (British Thermal Units) per hour.
76
'Bar' is the unit of
Discuss
Answer & Solution
Answer: Option C
Solution:
The bar (symbol bar) is widely used in many countries as a unit of pressure.
77
One Joule is equal to
Discuss
Answer & Solution
Answer: Option C
Solution:
One Joule is equal to 107 ergs.
78
Kilowatt is a unit to measure:
Discuss
Answer & Solution
Answer: Option B
Solution:
The power consumption of small devices is usually measured in Watts, and the power consumption of larger devices is measured in kilowatts (kW), or 1,000 Watts.
79
Electric current is measured by:
Discuss
Answer & Solution
Answer: Option C
Solution:
An instrument called ammeter measures electric current in a circuit. It is always connected in series in a circuit through which the current is to be measured. Also ammeter has negligible resistance, thus no voltage gets dropped across it.
80
A chronometer measures:
Discuss
Answer & Solution
Answer: Option C
Solution:
A chronometer measures time.