Choose the correct answer.

1.Tan45°, cot 45°=

a. 1
b.1/2
c.1/√2
d. 0

2. Circumference of a circle is given by______
a. πD 

b. 2r
c. Both (a) & (b)
d. Neither a nor b

3.The area of a parallelogram is 72 cm and its altitude is twice the corresponding base. Then
the length of the base is_____.
a. 12 cm
b. 9 cm
C. 6 cm
d. 3 cm

4.The ratio of area of a circle to the area of semi-circle is-
a. 1:2
b .2: 1
c..4:1
d.1:4

PART- A (WORKSHOP CALCULATION & SCIENCE)
(75)
Choose the correct answer:
1.If the area of square plate is 2025 mm², then find the side-
a. 65 mm
b. 55 mm
c. 45mm
d. 35 mm

WORKSHOP CALCULATION AND SCIENCE
Monthly test (November-2015)
Time: 1:30 hours
Total marks: 50
1. A piece of alloy weighing 80grams consists of 60grams of copper and the remaining is zinc. The ratio of
copper to zinc is...
a) 3:2

b) 3:4

c) 3:1

d) 3:3

2. 1200kg of mild steel 25% of metal is cul and removed. The net weight of remaining
a) 600kg

b) 700kg

c) 900kg

d) 1000kg

Choose the correct answers:
 1 .0.2 Kg =
a) 200 gram
b) 20 gram
c) 2 gram
d) None of these

2.The number1/2 x 1/2 ÷ 1/3 is equal to -

a) 1

b) 1/2

c) 2

d) 1/4
  

3.One gallon is equal to__________ litres.
a) 4.1 litre
b) 4.24 litre
c) 4.50 litre
d) 4.54 litre

4.Reciprocal of -5 is-
a) -1/5

b) 1/5

c) +5

d) 1

5. Sum of Number 7/12 & -5/16 is equal to -
a) -7/48

b) -11/30

c) 13/48

d) 1/3

WORKSHOP CALCULATION & SCIENCE SEM 2 JAN 2018

1. Which one of the following is equal to am X an
  m n mn m/n
b) a

Mechanical equivalent of heat is ........
a) 4200 J/kgoc
b) 42.00 J/kgoc 
c) 420.0 J/kgoc
d) 4.20 J/kgoc

Basic unit of current is
a) Micro amps
b) Millie amps
c) Amps 
d) Kilo amps

Find the value of y if (3/5) .....(15/5y) = 3/4
b) -98 c) -100 d) -102

MARKS: 75
Note: Attempt All the questions.
All questions carry equal marks.
Choose the correct answers:
1.Which of the following property is affected by heat treatment?
(a) Hardness
(b) Strength
(c) Ductility
(d) All of these

2. Annealing involves heating the component to a temperature......
(a) Slightly below the critical temperature
(b) Equal to critical temperature
(c) Slightly above the critical temperature
(d) None of these

Choose the correct answer.

1. Which of following is rule of indices?
a) x^a ÷ x^b = x^a+b
b  x^a  ÷ x^b = x^a-b
c  x⁶ ÷  x^b= x^ab
d) All of these

2. If the sum of roots are 12 and product of roots is 30, then the equation will be_____
a) x²-10x+30=3
b) x²-10x-30=0
c) x²-30x+10=1
d) None of these