Class 8 Maths Periodic test – II 40 marks

 

Subject: Maths		Class: VIII       Periodic test – II     Max. Marks: 40
	GENERAL INSTRUCTIONS: All the Questions are compulsory The Question paper consists of 28 questions divided in to four sections. Section A contains 10 questions of each1 marks. (MCQ) Section B contains 10 questions of each 1 marks. (VSA) Section C contains 4 questions of each 2 marks. (SA1) Section D contains 4 questions each carries 3 marks.(SA2)
	SECTION:A  Multiple Choice Questions  (10 x 1 = 10 Marks)
Q1	The diagonals of a rhombus are 7.5 cm and 12 cm. Then its area is ____  (a) 45 sq.cm (b) 90 sq.cm (c) 39 sq.cm (d) 19.5 sq.cm
Q2	The side of a cube whose surface area id 600 cm2 is ____ (a) 8 cm           (b) 10 cm (c) 18 cm           (d) 6 cm
Q3	The height of a cuboid whose base area is 180 cm2 and volume is 900 cm3 is ___ (a) 13 cm               (b)  6 cm     (c) 5 cm                 (d) 20 cm
Q4	If each edge of a cube is doubled, then the surface area will increase ____ times. (a) 3                (b) 4    (c) 5                 (d) 6
Q5	Express the following number in usual form 3.02 × 10–6 = (a) 0.00000302         (b) 0.0302           (c) 302000          (d) 30.00002
Q6	Express the number 6020000000000000 in standard form. (a) 6.02 x 1015         (b) 6.02 x 1010   (c) 602 x 1015          (d) 6.02 x 10-15
Q7	(-4)-2  = __________  (a) 16         (b) -16           (c) 8           (d) 116
Q8	Total Surface Area of Cuboid is  (a) 2(lb+bh+hl)         (b) lb+bh+hl (c) lbh         (d)   2h(l+b)
Q9	The product of (a2 ) × (2a22) × (4a26) = 8a50              (b) 124a44         (c) 7a23                    (d) 8a48
Q10	Area of a rectangle with given length = 9y and breadth = 4y2  is ____ 36y              (b) 36y2            (c)   13y3                (d) 36y3
	SECTION:B  Very Short Answer Type Questions  (10 x 1 = 10 Marks)
Q11	Find the product of the following pairs of monomials:       4, 7p
Q12	Add:  ab – bc, bc – ca, ca – ab
Q13	Find the volume of rectangular box with given length = a, breadth = 2b and     height =3c.
Q14	Subtract 4a-7ab+3b+12  from 12a -9ab +5b-3
Q15	The area of a rhombus is 240 cm2 and one of the diagonals is 16 cm. Find the other diagonal.
Q16	Formula to find the Curved surface area of cylinder is ____.
Q17	1 m3 = _____ litres.
Q18	am x an = ______
Q19	Size of a bacteria is 0.0000005 m in standard form is ____
Q20	Find the value of (3– 1 + 4– 1 + 5– 1)0
	SECTION:C  Short Answer Type Questions  (4 x 2 = 8 Marks)
Q21	Multiply the binomials. (2x + 5) and (4x – 3)
Q22	Simplify the expressions and evaluate them as directed:  x (x – 3) + 2 for x = 1,
Q23	Find the value of m for which 5m ÷ 5– 3 = 55 .
Q24	A road roller takes 750 complete revolutions to move once over to level a road. Find the area of the road if the diameter of a road roller is 84 cm and length 1 m.
	SECTION:D  Long Answer Type Questions  ( 4 x 3 = 12 Marks )
Q25	A milk tank is in the form of cylinder whose radius is 1.5 m and length is 7 m. Find the quantity of milk in litres that can be stored in the tank.
Q26	In a building there are 24 cylindrical pillars. The radius of each pillar is 28 cm and height is 4 m. Find the total cost of painting the curved surface area of all pillars at the rate of  ₹ 8 per m2.
Q27	Simplify: 25 x t^-4 /( 5^-3 x 10 x  t^-8 ) (t≠0)
Q28	Simplify: (a + b + c)(a + b – c)