Workshop Calculations Semester 1 July 2017

Workshop Calculation & Science - Semester I (Fitter, July 2017)

1. 1000 liters =
   a) 219.97 gallons ✔
   b) 200 gallons
   c) 250 gallons
   d) None
2. 52.5 lbs =
   a) 23.814 kg ✔
   b) 26.25 kg
   c) 15.75 kg
   d) 115.5 kg
3. X : 4 = 9 : 6 → X =
   a) 2.66
   b) 13.5
   c) 6 ✔
   d) 2.166
4. Area = 2304 m² → side =
   a) 45 m
   b) 48 m ✔
   c) 47.9 m
   d) 49.02 m
5. 1 kg force does 10 kg-m work → distance:
   a) 1 m
   b) 10 m ✔
   c) 0.1 m
   d) None
6. 25 sq ft =
   a) 2.3225 m² ✔
   b) 2.2323 m²
   c) 2.2525 m²
   d) None
7. 0.1 × 0.01 =
   a) 0.1
   b) 0.01
   c) 0.001
   d) 0.0001 ✔
8. Perimeter = 320 m, ratio 5:3 → area:
   a) 6000 m²
   b) 3000 m²
   c) 12000 m² ✔
   d) 24000 m²
9. Zeros in square of 400:
   a) 2
   b) 3
   c) 4 ✔
   d) None
10. SI unit of energy:
    a) Erg
    b) Calorie
    c) Joule ✔
    d) Electron volt
11. Cube (14 cm, density 7.8 g/cc):
    a) 21.4 kg ✔
    b) 351 g
    c) 25.14 kg
    d) 109.2 kg
12. 553/700 vs 486/600 → better:
    a) Ram ✔
    b) Deepu
    c) Equal
    d) None
13. 20:3:2 → percentages:
    a) 80%, 20%, 20%
    b) 60%, 20%, 20%
    c) 80%, 12%, 8% ✔
    d) 80%, 10%, 10%
14. Distance/time is:
    a) Velocity
    b) Speed ✔
    c) Acceleration
    d) Retardation
15. Free fall (100 m) → velocity:
    a) 44.27 m/s ✔
    b) 31.30 m/s
    c) 93.91 m/s
    d) 125.21 m/s
16. Simplify (-4)/5 × 3/7 × 15/16 × (-14)/9 =
    a) 1/2 ✔
    b) 14/35
    c) 45/80
    d) -1/2
17. 8:5:2, height 25 → volume:
    a) 156250 cc ✔
    b) 125000 cc
    c) 1000 cc
    d) None
18. Weight 150 g, density 6 → volume:
    a) 900 cc
    b) 25 cc ✔
    c) 40 cc
    d) 0.04 cc
19. 480 ↑15% → output:
    a) 528 ✔
    b) 552
    c) 540
    d) 555
20. 98.4°F =
    a) 38°C
    b) 32°C
    c) 36.8°C ✔
    d) 40°C
21. 5 kg alloy (20:3:2) → copper & zinc:
    a) 4 kg Cu, 0.4 kg Zn ✔
    b) 4 kg Cu, 0.6 kg Zn
    c) 4 kg Cu, 0.5 kg Zn
    d) 4 kg Cu, 0.7 kg Zn
22. √0.09 =
    a) 0.03
    b) 0.3 ✔
    c) 0.003
    d) 3.0
23. Subtract from 1989 → perfect square:
    a) 53
    b) 36
    c) 140 ✔
    d) None
24. 60g Cu in 80g alloy → ratio:
    a) 3:4 ✔
    b) 1:4
    c) 3:1
    d) 2:3
25. Descending order:
    a) 2/3, 3/4, 5/8, 8/9
    b) 5/8, 2/3, 3/4, 7/8
    c) 2/3, 3/4, 5/6, 5/8
    d) 5/6, 3/4, 2/3, 5/8 ✔