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Hassan
1.If a + b = 5 and a - b = 3 then the value of a² + b² should be
A. 21
B. 15
C. 17
D. 21
2.In algebra, we use alphabets such as a, b, c to denote
A. operational signs
B. constants
C. any numerical value
D. operational signs
3.A surd which has unity only as rational fraction and the other factors being irrational is said to be
A. mixed surd
B. pure surd
C. similar surd
D. mixed surd
4.Surds having the same irrational factor are called
A. similar surds
B. unlike surds
C. mixed surds
D. similar surds
5.Surds having no irrational factor are called
A. pure surds
B. mixed surds
C. similar surds
D. pure surds
6.When the product of two surds is rational, then each one of them is called the
A. prime factor of each other
B. irrationalizing factor of each other
C. rationalizing factor of each other
D. prime factor of each other
7. (a + b)² - (a - b)² is equal to
A. 2ab
B. a² - b²
C. 4ab
D. 2ab
8.Length, mass, electric current, time, intensity of light and the amount of substance are the examples of
A. base quantities
B. derived quantities
C. prefixes
D. base quantities
9.The prefix for 109 is
A. giga
B. Milli
C. nano
D. giga
10.A number 62580 can be expressed in scientific notation as
A. 6.258 × 103
B. 6.258 × 102
C. 6.258 × 104
D. 6.258 × 103
11. We can express 200.7 in scientific notation as
A. 2.007 × 10³
B. 2.007 × 10²
C. 27 × 10³
D. 2.007 × 10³
12. In screw gauge, if zero of circular scale is behind the index line, then the zero error will be
A. positive
B. negative
C. zero
D. positive
13.All the quantities that are measurable are called
A. Physical quantities
B. thermodynamics
C. non-physical quantities
D. Physical quantities
14. The smallest possible division up to which an instrument can measure is called
A. large count
B. least count
C. small count
D. large count
15. The least count of the meter ruler is
A. 0.1 mm
B. 0.5 mm
C. 1 mm
D. 0.1 mm
16. Measuring cylinders have different capacities from
A. 1000 mL to 2500 mL
B. 10 mL to 250 mL
C. 100 mL to 250 mL
D. 1000 mL to 2500 mL
17. In screw gauge, if zero of circular scale coincides with the index line, then the zero error will be
A. positive
B. zero
C. negative
D. positive
18.The standard quantity for measuring is called
A. base quantity
B. physical quantity
C. derived quantity
D. base quantity
19.The quantities that are expressed in terms of base quantities are known as
A. quartile quantities
B. prefixes
C. base quantities
D. quartile quantities
20.By converting 30,000 grams into kilograms, we get
A. 30 kg
B. 3 kg
C. 300 kg
D. 30 kg
21. Volume, area, speed, electric charge, force and work are the examples of
A. quartile quantities
B. base quantities
C. derived quantities
D. quartile quantities
22.In laboratories, a one meter long tool to measure length of an object or distance between two points is called
A. physical balance
B. screw gauge
C. Vernier calipers
D. physical balance
23.Derived quantities can be expressed in form of
A. base quantities
B. physical quantities
C. non measurable quantities
D. base quantities
24.Quantities on basis of which other ones are expressed are called
A. derived quantities
B. physical quantities
C. base quantities
D. derived quantities
25. If circular scale has crossed the index line then zero error of screw gauge is
A. negative
B. positive
C. 0
D. negative
26. If zero line of the Vernier scale coincides with the zero of the main scale, then zero error is
A. positive
B. zero
C. negative
D. positive
27. The study of the charged at rest and in motion, their effects and their relationship with magnetism is called
A. mechanics
B. plasma physics
C. atomic physics
D. mechanics
28. Counting is not simply
A. measuring
B. adding
C. subtracting
D. measuring
29.The knowledge gained through observations and experiments is called
A. Mathematics
B. Science
C. Economics
D. Mathematics
30.A mechanical stopwatch can measure minimum value up to
A. 0.1 s
B. 0.2 s
C. 0.3 s
D. 0.1 s
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