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A. Asbestos
B. Detergents
C. Plaster of Paris
D. Gypsum
Answer
C. Plaster of Paris
Submitted by: Toheed Ahmed
The protein content in wheat is approximately:
A. 12%
B. 8%
C. 6%
D. 16%
Answer
A. 12%
Submitted by: Toheed Ahmed
Which one of the following descending order of items by their fat content?
A. Egg yolk, butter, cheese, cream, milk
B. Butter, ghee, cheese, egg yolk, cream
C. Cream, cheese, condensed milk, egg (whole), cow milk
D. Ghee, butter, egg yolk, cheese, condensed milk
Answer
D. Ghee, butter, egg yolk, cheese, condensed milk
Submitted by: Toheed Ahmed
The pH of human blood is between:
A. 6.5 – 7
B. 7.5 – 8
C. 8 – 9
D. 4.5 – 5
Answer
B. 7.5 – 8
Submitted by: Toheed Ahmed
Which one of the following is used as a disinfectant in water treatment?
A. Alum
B. Charcoal
C. Kieselguhr
D. Potassium permanganate
Answer
D. Potassium permanganate
Submitted by: Toheed Ahmed
Why do the electricians wear rubber gloves while touching wires?
A. With rubber gloves they can hold wires properly.
B. Rubber is a bad conductor of electricity and electrician does not get electricuted.
C. It helps in the smooth flow of the current.
D.None of these
Answer
B
Submitted by: Toheed Ahmed
How does a lightening conductor protect the buildings?
A. It absorbs the charges released by lightening.
B. It helps the charge to pass into the earth without damaging the building.
C. It scatters the charge from lightening.
D. None of these
Answer
B
Submitted by: Toheed Ahmed
How does a man die by touching a live wire?
A. The current passes into the earth through the man’s body. As the circuit is complete it burns the body.
B. The current stops the flow of blood through the heart.
C. It affects the nervous system and so kills brain cells.
D. None of these
Answer
A
Submitted by: Toheed Ahmed
Why are two blankets warmer than one ________?
A. Two blankets have more wool and so warmer
B. Two blankest enclose air which does not allow the cold to penetrate.
C. Two blankets compress the air in between the body and the blankets and this compression produces heat.
D. None of these
Answer
B
Submitted by: Toheed Ahmed
How does a bulb emit light?
A. As the electricity passes into the bulb its glass begins to shine.
B. As electricity passes in the vaccum of the bulb it changes into heat, so glows.
C. The current passes through a tungsten wire of high resistance which becomes so hot as to glow.
D. None of these
Answer
C
Submitted by: Toheed Ahmed