ECAT Pre Engineering Chemistry Chapter 26 MCQ Test With Answer

Question # 1

Ammonium nitrate fertilizer is not used for which crop?

Cotton A
Wheat B
Sugar-cane C
Paddy rice D

Question # 2

Major fertilizers with micro—nutrients are

Nitrogeneous A
Phosphatic B
Potash C
a,b,c D

Question # 3

Which is a component of micro nutrient?

N A
Zn B
P C
K D

Question # 4

Pakistan in the beginning was a country

industrial A
chemical B
agrarian C
technological D

Question # 5

Which woody raw material is used for the manufacture of paper pulp?

cotton A
Bagasse B
Popular C
Rice straw D

Question # 6

A colloidal gel is

3cA, Al₂O₃ A
CaSO₂.2H₂O B
3CaAl₂O₃.3CaSO₄.2H₂O C
3Ca.Al₂O₃.6H₂O D

Question # 7

During the manufacturing process of cement the temperature of the decomposition zone goes up to

600^oC A
8000^oC B
1000^oC C
1200^oC D

Question # 8

At present cement plants in Pakistan are

ten A
twenty two B
four C
twenty four D

Question # 9

Which three elements are needed for the healthy growth of plants?

N, S, P A
N, Ca, P B
N, P, K C
N, K, C D

Question # 10

The cement plants in west Pakistan at the time of creation were

ten A
twenty two B
four C
twenty four D

Question # 11

Which fills the space between needles in cement setting?

Ca(OH)₂ A
Al(OH)₃ B
CaCO₃ C
MgSO₄ D

Question # 12

The strength of economy of a country is measured with respect to production of

Medicines A
Cement B
Fertilizers C
Paper D

Question # 13

Which is not nitrogeneous fertilizers?

(NH₄)₂HPO₄ A
NH₄NO₃ B
urea C
Calcium phosphate D

Question # 14

To meet the due need of food by increasing population we must use in agriculture

good seeds A
pesticides B
fertilizers C
all D

Question # 15

Setting time of cement is controlled by adding

Epsom A
Gypsom B
CaCO₃ C
CaCl₂ D

Question # 16

The word paper is derived from the name of which seedy plant?

Rose A
Sun flower B
Papyrus C
Water Hyacinth D

Question # 17

Urea has concentration when prepared before prilling

46% A
82% B
99.7% C
100% D

Question # 18

Major component in cement is

SiO₂ A
Lime B
Al₂O₃ C
MgO D

Question # 19

Gypsom added in the cement is

5% A
10% B
15% C
20% D

Question # 20

Which is a component of macronutrient?

Zn A
N B
Mo C
Cl D

Question # 21

After chlorination, the pulp is washed at

20°C A
30°C B
40°C C
60°C D

Question # 22

Pakistan at the time of existence in 1947 was a country:

agrarian A
industrial B
nuclear C
economically strong D

Question # 23

Ammonia is injected tinder the soil surface

1 feet A
6 inches B
6 feet C
inches D

Question # 24

75% plant nutrients are present in the fertilizer

urea A
NH₄NO₃ B
NH₃ C
(NH₄)₂HPO₄ D

Question # 25

Ammonia contains nitrogen in it

46% A
50% B
80% C
82% D

Question # 26

The nitrogen present in some fertilizers helps plant to

fight against diseases A
Produce fat B
Undergo photosynthesis C
produce protein D

Question # 27

Composition of clay in cement is

25% A
50% B
75% C
80% D

Question # 28

How many are the zones through which the charge passes in a rotary kiln?

4 A
3 B
2 C
5 D

Question # 29

Which is not a calcarious material

lime A
clay B
marble C
marine shell D

Question # 30

Cement is a combination of mainly

calcarious A
argillaceous B
calcarious and argillaceous C
Al₂O₃ D

Sr.#	Question	Answer
1	Urea has concentration when prepared before prilling	A. 46% B. 82% C. 99.7% D. 100%
2	Gypsom added in the cement is	A. 5% B. 10% C. 15% D. 20%
3	How many are the zones through which the charge passes in a rotary kiln?	A. 4 B. 3 C. 2 D. 5
4	The nitrogen present in some fertilizers helps plant to	A. fight against diseases B. Produce fat C. Undergo photosynthesis D. produce protein
5	Cement is a combination of mainly	A. calcarious B. argillaceous C. calcarious and argillaceous D. Al₂O₃
6	Which is not nitrogeneous fertilizers?	A. (NH₄)₂HPO₄ B. NH₄NO₃ C. urea D. Calcium phosphate
7	The word paper is derived from the name of which seedy plant?	A. Rose B. Sun flower C. Papyrus D. Water Hyacinth
8	The cement plants in west Pakistan at the time of creation were	A. ten B. twenty two C. four D. twenty four
9	Which woody raw material is used for the manufacture of paper pulp?	A. cotton B. Bagasse C. Popular D. Rice straw
10	Which fills the space between needles in cement setting?	A. Ca(OH)₂ B. Al(OH)₃ C. CaCO₃ D. MgSO₄

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