bmo

BMO PVT ITI

MODEL EXAM JANUARY – 2017

WORKSHOP CALCULATION & SCIENCE

ELECTRONICS MEHANIC (1^st Semester)

Max. Marks: 75

Choose the correct answer. Each question carries 3 marks.

1) Unit of mass in MKS systeem is..............

A) Gram                      B) Centigram              C) Kilogram                D) Pound

2) 1 feet = ...............

A) 8 inch                     B) 12 inch                   C) 15 inch                   D) 17 inch

3) Unit of time in CGS system is................

A) Day                                    B) Hour                       C) Minute                   D) Second

4) Which property of metal is stated under physical property?

A) Structure                B) Ductility                 C) Tenacity                 D) Elasticity

5) In cast iron, the carbon content ranges from...........

A) 0.15% to 0.3%       B) 0.3% to 0.5%         C) 1.1% to 1.4%         D) 2% to 4%

6) Which of the following is the equation of motion in upward movement?

A) v² - u² = 2gS           B) v = u + gt               C) v = u - gt                D) v² = u² + 2gS

7) Which material is used as heating element in electric iron?

A) Silver                      B) Nichrome               C) Tungsten                D) Eureka

8) What is the potential energy in a body of mass 5kg on top of a pole oof 20m height? (Take g = 9.81m/s²)

A) 198J                       B) 450J                        C) 981J                       D) 9810J

9) When heat is applied it starts melting then the property is called........

A) Ductility                 B) Malleability                        C) Fusibility                D) Brittleness

10) Which non metal among the following will conduct electricity?

A) Graphite                 B) Porcelain                C) Mica                       D) Glass

11)

A)B)C)D)

12)

A) 10                           B) 20                           C) 40                           D) 60

13)

A) 1                             B) 2                             C) 3                             D) 4

14) Convert 0.125 into common fraction

A)B)C)D)

15) Convert the fraction

A) 0.125                      B) 0.345                      C) 0.625                      D) 0.750

16) The comparison of division by two similar quantities is called........

A) Ratio                      B) Proportion              C) Percentage             D) Direct proportion

17) What is the ratio between 1kg 750gm to 7kg?

A) 1:4                          B) 2:3                          C) 3:2                          D) 4:1

18) If X:15 = 6:9, then X is equal to.........

A) 12                           B) 10                           C) 4                             D) 3

19) 3.9% is equal to...........

A) 0.39                        B) 0.039                      C) 0.0039                    D) 0.00039

20) Convert

A)B)C)D)

21) An alloy metal consists of 59% copper, 29% zinc and the remaining is lead. Calculate the percentage of lead in the alloy.

A) 8%                          B) 10%                        C) 12%                        D) 18%

22) A stone is dropped from the top of a building and is found to reach gound in 1 second. Find the height of the buildiing. (Take g = 9.81m/s²)

A) 3.905m                   B) 4.905m                   C) 5.905m                   D) 6.905m

23) 40J of work is done by an object in 5 seconds. Calculate its power in watts.

A) 45W                       B) 35W                       C) 8W                         D)200W

24) Rate of change of displacement of a body in motion in a given directionis........

A) Acceleration           B) Velocity                 C) Speed                     D) Distance

25) Density of water is............

A) 2.7gm/cc                B) 1gm/m³                         C) 1gm/cm³                      D) 2.7gm/cm³