1. What is the tall huge tower present the drilling called?
a) Feed lever
b) Derrick
c) Chuck and sleeve
d) Slurry
Explanation: The drilling equipment consists of a tall huge tower called derrick, which is anchored to the ground, engines, mud pumps, water tanks draw-works nad many other modules
2. The success of drilling mostly depends on the quality of the specially prepared slurry of water called the mud.
a) True
b) False
Explanation: This mud formed is generally oil based or water based. The mud consists of various chemicals, adhesives and special additives that serve important functions
3. Which of the following is used as a special additive in water-based drilling fluids?
a) NaOH
b) KCl
c) Baryte
d) NaCl
Explanation: NaCl is the additive that is used to minimize borehole washouts in a salt zone. NaOH, KCl and Baryte are the chemicals used in water based mud. NaOH is used for pH control.
4. Which of the following condition must be satisfied for the mining of petroleum?
a) A non-porous rock
b) A cap rock overlying the reservoir rock
c) A fully opened area
d) Proper temperature and pressure conditions
Explanation: The cap rock is impermeable to the oil and hence prevents the escape of oil upwards through the strata above. A porous rock is required. A closure is also required to restrict or prevent lateral migration
5. How can we dig out the oil present in the earth’s crust?
a) By providing some external pressure
b) By digging the whole area
c) The oil comes out by itself from pipes
d) By covering the holes at the top
Explanation: Holes are drilled into the earth’s crust and pipes are sunk up to the surface of oil-bearing rocks. Oil usually rushes out to the surface by itself because of hydrostatic pressure of natural gas.
6. Which type of pumps are used for pumping the oil?
a) Air-lift pump
b) Piston pump
c) Screw pump
d) Gear pump
Explanation: When the hydraulic pressure of the gas becomes too low, it may have to be mechanically pumped up with the help of air-lift pump. It consist of two coaxial pipe which are sunk into the oil bed.
7. When the mixture of gas and oil is forced out due pressure of gas, then this method of pumping is called water drive.
a) True
b) False
Explanation: This process of pumping is called pressure drive. When the oil is forced out by pumping of water into the well, when a mixture of oil and water comes out of well, then this method is called water drive.
8. Which type of process is used for the refining of petroleum?
a) Destructive distillation
b) Zone distillation
c) Fractional distillation
d) Steam distillation
Explanation: The crude obtained by the process of mining consist of many impurities of solid, liquid and gaseous hydrocarbons. By the process of fractional distillation the crude oil is separated on the basis of the impurity percentile.
9. At normal ambient temperature and atmospheric pressure, in which form LPG is obtained?
a) Solid
b) Gaseous
c) Liquid
d) Solid-liquid
Explanation: LPG is a certain mixture of light hydrocarbons derived from petroleum. At normal temperature and pressure it is in gaseous state and later on it is condensed to the liquid state by the application of moderate pressure.
10. Under which compound name does the liquid petroleum gas (LPG) are sold?
a) Urea
b) Ethylene
c) Benzoyl peroxide
d) Butane
Explanation: Propane and butane are present in the largest amounts in LPG. Small quantities of ethane, pentane, ethylene and pentene are also present. Under trade names it is represented as HP, Bharat gas and Indian gas in India