Chemical Engineering :: All Aptitude Test ::

1. Light year is a measurement of
A. Speed of aeroplanes
B. Speed of light
C. Stellar distances
D. Speed of aeroplanes

2.One kilometer is equal to how many miles?
A. 0.84
B. 0.5
C. 1.6
D. 0.84

3.Bar' is the unit of
A. Temperature
B. Heat
C. Atmospheric pressure
D. Temperature

4. Nautical mile is a unit of distance used in
A. Navigation
B. Road mile
C. Astronomy
D. Navigation

5.Which of the following statements are true for dimensional analysis?
A. (1), (2) and (3)
B. (2), (3) and (4)
C. (1), (3) and (4)
D. (1), (2) and (3)

6. The unit of physical quantity which does not depend on the unit of any other physical quantity is called as
A. independent dimension
B. fundamental dimension
C. core dimension
D. independent dimension

7.Which of the following is not a primary quantity?
A. Mass (M)
B. Temperature (θ)
C. Time (T)
D. Mass (M)

8. What are the dimensions of force?
A. [M L T – 2 ]
B. [M L T – 1 ]
C. [M L 2 T – 2 ]
D. [M L T – 2 ]

9. Which of the following quantities has the dimensions [M0 L0 T 0]
A. Density
B. Stress
C. Strain
D. Density

10. Match the following physical quantities in Group 1 with their dimensions in Group 2.
A. 1-(C), 2-(A), 3-(D), 4-(E), 5-(B)
B. 1-(A), 2-(C), 3-(D), 4-(E), 5-(B)
C. 1-(C), 2-(A), 3-(E), 4-(B), 5-(D)
D. 1-(C), 2-(A), 3-(D), 4-(E), 5-(B)

11. Which of the following equations is not dimensionally homogeneous? Consider standard symbols for quantities.
A. (Force) F = m x a
B. (Head Loss due to friction) hf = (f L V2) / (2 g d)
C. (Torque) T = F x Distance
D. (Force) F = m x a

12. Which of the following is a dimensionless equation?
A. Reynold's equation
B. Euler's equation
C. Weber's equation
D. Reynold's equation

13. Which of the following number is applicable in open hydraulic structure such as spillways, where gravitational force is predominant?
A. Reynold's Number
B. Euler's Number
C. Weber's Number
D. Reynold's Number

14. Square root of the ratio of inertia force to elastic force is called as
A. Mach's Number
B. Cauchy's Number
C. Both (a) and (b)
D. Mach's Number

15. Substances which larger masses are usually measured in
A. kilograms
B. grams
C. tones
D. kilograms

16.An instrument which gives a level of high accuracy than mechanical watch is
A. electronic stopwatch
B. stop clock
C. pendulum clock
D. electronic stopwatch

17.In SI system the unit of area is
A. meter
B. square
C. meter square
D. meter

18.Which one is not a branch of physical sciences?
A. Chemistry
B. Astronomy
C. Geology
D. Chemistry

19.The dimension of energy density is the same as that of?
A. Pressure
B. Force
C. (Velocity)2
D. Pressure

20.Which property of a solid object cannot be changed by the application of force?
A. Length
B. Mass
C. Area
D. Length

21. For what physical quantity is the pascal a unit?
A. Stress
B. Pressure
C. Young’s modulus
D. Stress

22. In scientific notation, numbers are expressed in?
A. Power of ten
B. Powers of two
C. Reciprocal
D. Power of ten

23.1024 can be written in scientific notation as?
A. 1.024 x 103
B. 210
C. 0.000976
D. 1.024 x 103

24. The error in measurement may occur due to?
A. Inexperience of a person
B. The faulty apparatus
C. Inappropriate method
D. Inexperience of a person

25. The uncertainty in measurement may occur due to?
A. Limitation of an instrument
B. Natural variation of the object to be measured
C. Inadequate of technique
D. Limitation of an instrument

26.Random error can be reduced by?
A. Taking zero correction
B. Comparing the instrument with another more accurate one
C. Taking mean of several measurements
D. Taking zero correction

27.In any measurement the significant figures are?
A. All accurately known and all doubtful digits
B. Only accurately known digits
C. Only doubtful digits
D. All accurately known and all doubtful digits

28.A digit zero in a measurement?
A. May be significant may not significant
B. Always significant
C. Always insignificant
D. May be significant may not significant

29.The number of significant figures in 0.0173 are?
A. Three
B. Four
C. Five
D. Three

30.Smaller the least count of the instrument more is the measurement?
A. Accurate
B. Precise
C. Accurate and Precise
D. Accurate


Date to Date Current Affairs 2022

PakMCQs.net

Quick Links

GAT Subject



   Computer Science    English Mcqs    Agriculture    

Engineering



   Computer Science    Civil Engineering    

Technical



   Networking    Electronics    Database    

Past Papers



   Model Papers    FPSC Papers