1000 Best General Science MCQ-Questions
Q137). Kilowatt is a unit to measure
a).work
b).power
c).electricity
d).current
Correct Answer:
power
Explanation:
Q138). Electric current is measure by
a).commutator
b).anemometer
c).ammeter
d).voltmeter
Correct Answer:
ammeter
Explanation:
Q139). A chronometer measures
a).colour contrast
b).sound waves
c).time
d).water waves
Correct Answer:
time
Explanation:
Q140). Nautical mile is a unit of distance used in
a).navigation
b).road mile
c).astronomy
d).measuring the boundaries of a nation
Correct Answer:
navigation
Explanation:
Q141). Knot is a unit of speed of which of the following?
a).Aeroplane
b).Light waves
c).Ship
d).Sound waves
Correct Answer:
Ship
Explanation:
Q142). Which of the following is used as a moderator in nuclear reactor?
a).Thorium
b).Graphite
c).Radium
d).Ordinary water
Correct Answer:
Graphite
Explanation:
Q143). Which among the following is a positively charged particle emitted by a radioactive element?
a).Beta ray
b).Alpha ray
c).Cathode ray
d).Gamma ray
Correct Answer:
Alpha ray
Explanation:
Q144). Atoms are composed of
a).electrons and protons
b).electrons only
c).protons only
d).electrons and nuclei
Correct Answer:
electrons and nuclei
Explanation: