The color which we see when our eyes are closed?
A. Eigengrau
B. Grey
C. Black
D. None of these
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Cooking gas is also called:
A. Butane
B. Propane
C. Hexane
D. None of these
Correct Answer: A
Cooking gas is also known as liquified Petroleum Gas (LPG), is a mixture of propane and butane. It is better suited to indoor use, and fuelling appliances like portable gas heaters and single-burner cooking stoves.
In the manufacture of Banaspati ghee, which gas is used?
A. Nitrogen
B. Hydrogen
C. Helium
D. None of these
Correct Answer: B . The gas used in the manufacture of Banaspati Ghee from Banaspati Oil is Hydrogen. At high pressure, in the presence of nickel catalyst, hydrogen is mixed with vegetable oils which turn them into vegetable ghee.
Nitrogenous wastes excreted through urine in human is:
A. Urea
B. Ammonia
C. Uric acid
D. None of these
Correct Answer: A
Humans and most other mammals produce urea as the nitrogenous waste, which is filtered out from the blood by kidneys and excreted out.
Alternative current (AC) is converted into direct current (DC) by using a:
A. Generator
B. Rectifier
C. Voltmeter
D. None of these
Correct Answer: B
Direct current (DC) is converted into alternating current (AC) by using a Inverter.
The largest gland in the human body is:
A. Heart
B. Kidney
C. Liver
D. None of these
Correct Answer: C
The Pineal gland is the smallest gland in the human body.
Heating element of an electric heater is made up of which metal?
A. Lead
B. Tungsten
C. Nichrome
D. None of these
Correct Answer: C
Nichrome is a metal alloy made up of around 20 percent of chromium and 80 percent nickel. Nichrome has a high melting point and it won’t oxidise at higher temperature