Description : Which of the following fractions of a crude oil will have the maximum gravity API (i.e. °API)? (A) Diesel (B) Gasoline (C) Atmospheric gas oil (D) Vacuum gas oil
Last Answer : (C) Atmospheric gas oil
Description : Which of the following has the maximum °API gravity of all? (A) Diesel (B) Kerosene (C) Petrol (D) Furnace oil
Last Answer : (C) Petrol
Description : Which of the following has the minimum °API gravity of all? (A) Diesel (B) Kerosene (C) Petrol (D) Furnace oil
Last Answer : (D) Furnace oil
Description : Pick out the undesirable property for a solvent meant for dewaxing of lube oil. (A) Complete miscibility with oil (B) High solubility of wax in the solvent (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) and (B)
Description : Which one is preferred for aircraft engine? (A) High viscosity index lube oil (B) Low viscosity index lube oil (C) High freezing point aviation fuel (D) None of these
Last Answer : (A) High viscosity index lube oil
Description : Which of the following has the lowest viscosity (at a given temperature) of all? (A) Naphtha (B) Kerosene (C) Diesel (D) Lube oil
Last Answer : (A) Naphtha
Description : Paraffin base crude oil as compared to asphalt base crude gives (A) Higher yield of straight run gasoline (B) Higher octane number gasoline (C) Lower viscosity index lube oil (D) Poorer yield of lube oil
Last Answer : (A) Higher yield of straight run gasoline
Description : What does lube oil viscosity refer to?
Last Answer : The viscosity of a liquid is a measure of of "thick" the liquid is. E.g. Honey is very viscous, while water is not. In terms of motor oil, more viscous oil will thin out less at very ... temperature viscosity and 40 is the high temperature viscosity. (scale of 0-60, with 60 being the most viscous)
Description : The liquid used for the washing of coal in an industrial coal washery is a mixture of water and (A) Carbon tetrachloride (B) Sand (40%) (C) Mineral oil of high viscosity & specific gravity (1.6) (D) None of these
Last Answer : (B) Sand (40%)
Description : A particle A of diameter 10 microns settles in an oil of specific gravity 0.9 and viscosity 10 poise under Stoke's law. A particle B with diameter 20microns settling in the same oil will have a settling velocity (A) ... ) One fourth as that of A (C) Twice as that of A (D) Four times as that of A
Last Answer : (B) One fourth as that of A
Description : The kinematic viscosity of an oil (in stokes) whose specific gravity is 0.95 and viscosity 0.011 poise, is (A) 0.0116 stoke (B) 0.116 stoke (C) 0.0611 stoke (D) 0.611 stoke
Last Answer : Answer: Option A
Description : Compare water and oil of specific gravity 0.8 on the basis of density & viscosity.
Last Answer : Here it is not possible to find out viscosity
Description : Pick up the correct statement from the following: (A) A highly absorptive aggregate reduces the workability of concrete considerably (B) The specific gravity of aggregate is important for the determination ... and porosity of an aggregate influence the property of the concrete (D) All the above
Last Answer : Answer: Option D
Description : Lane and Garton classification of petroleum is based on its (A) Composition (B) Specific gravity (C) Optical properties (D) Viscosity
Last Answer : (B) Specific gravity
Description : Which parameter is used for the grading of paraffin waxes? (A) Specific gravity (B) Melting point (C) Viscosity (D) Penetration number
Last Answer : (C) Viscosity
Description : Power alcohol as compared to straight run gasoline has lower (A) Calorific value (B) Octane number (C) Specific gravity (D) Viscosity
Last Answer : (A) Calorific value
Description : Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict pressure drop
Last Answer : (A) Increase
Description : Which of the following properties of a fluid is responsible for offering resistance to shear? (A) Surface tension (B) Viscosity (C) Specific gravity (D) All (A), (B), and (C)
Last Answer : (B) Viscosity
Description : Solvent used in duo-sol extraction for lube oil upgradation is a mixture of (A) Propane & phenol-cresol mixture (B) Methyl ethyl ketone & glycol (C) Phenol & furfural (D) Propane & liquid sulphur dioxide
Last Answer : (A) Propane & phenol-cresol mixture
Description : Clay treatment is used to remove (A) Salt from the crude oil (B) Colour & dissolved gases from cracked gasoline (C) Wax from lube oil (D) None of these
Last Answer : (C) Wax from lube oi
Description : . The main aim of cracking is to produce (A) Gasoline (B) Lube oil (C) Petrolatum (D) Coke
Last Answer : (A) Gasoline
Description : Which of the following can be most effectively used for clarification of lube oil and printing ink? (A) Sparkler filter (B) Pre-coat filter (C) Disc-bowl centrifuge (D) Sharpies super-centrifuge
Last Answer : (D) Sharpies super-centrifuge
Description : Diesel index is defined as (A) (°API) × (Aniline Point, °F)/100 (B) (°API) × (Aniline Point, °C)/100 (C) (°API) × (100)/Aniline Point, °F (D) (°API) × (100)/Aniline Point, °C
Last Answer : (A) (°API) × (Aniline Point, °F)/100
Description : What is the flashpoint of alcohol?
Last Answer : You did not say what type of alcohol, Most common types are isopropyl (rubbing alcohol) methanol (used in shellac) and ethanol (beer, wine, whiskey) An ethanol-water solution that contains 40% ABV (alcohol ... flash point of pure ethanol is 16.60 °C (61.88 °F), less than average room temperature.
Description : What is the flashpoint of ethanol?
Last Answer : An ethanol-water solution that contains 40% ABV (alcohol by volume) will catch fire if heated to about 26 °C (79 °F) and if an ignition source is applied to it. This is called its flash point. The flash point of pure ethanol is 16.60 °C (61.88 °F), less than average room temperature.
Description : Optical activity is a/an __________ property. (A) Additive (B) Constitutive (C) Both (A) & (B) (D) Neither (A) nor (B)
Last Answer : (C) Both (A) & (B)
Description : . Pick out the wrong statement. (A) The eddy viscosity is a function of the type of turbulence involved (B) The eddy viscosity is a fluid property (C) The viscosity of gas increases with increase in temperature (D) The viscosity of a liquid increases with decrease in temperature
Last Answer : (B) The eddy viscosity is a fluid property
Description : High __________ is an undesirable property for a good refrigerant. (A) Specific heat (B) Latent heat of vaporisation (C) Viscosity (D) Specific vapor volume
Description : Pick out the correct statement about the condensation. (A) Filmwise condensation gives a lower heat transfer rate than the dropwise condensation (B) Suitable coating or vapour additive is used to promote film ... place on it (D) Reynolds number of condensing liquid is based on its mass flow rate
Last Answer : (B) Suitable coating or vapour additive is used to promote film wise condensation
Description : Diesel generators #1 and #2 are operating in parallel at near full load capacity. Diesel generator #1 suddenly trips out mechanically due to low lube oil pressure. The reverse power relay functions ... all nonvital circuits. D. Secure alarms, reset reverse power relay, and restart #1 engine.
Last Answer : Answer: C
Description : Which of the following is not an important property of fuel oil/furnace oil? (A) Sulphur content (B) Viscosity (C) Aniline point (D) Flash point
Last Answer : (C) Aniline point
Description : Materials for rain-proof coats and tents owe their water proof properties to _____? A. Surface tension B. Viscosity C. Elasticity D. Specific gravity
Last Answer : ANSWER: A
Description : Materials for rain proof coats and tents owe their water proof properties to – (1) Surface tension (2) Viscosity (3) Specific gravity (4) Elasticity
Last Answer : (1) Surface tension Explanation: Materials for rain proof coats and tents owe their water proof properties to Surface Tension. The surface of a liquid behaves like an elastic membrane and therefore, has a tendency to contract. This property of liquid is called Surface Tension.
Description : Material for rain-proof coats and tents owe their water proof properties to ----? A. Surface tension (Answer) B. Viscosity C. Specific gravity D. Elasticity
Last Answer : A. Surface tension (Answer)
Description : If the specific gravity of a soil particle of 0.05 cm diameter is 2.67, its terminal velocity while settling in distilled water of viscosity, 0.01 poise, is (A) 0.2200 cm/sec (B) 0.2225 cm/sec (C) 0.2250 cm/sec (D) 0.2275 cm/sec
Last Answer : (D) 0.2275 cm/sec
Description : A suspended particle falls through a height minutes. If the viscosity of water is and specific gravity of the particle is , the diameter of the particle is (where M is a constant factor) (A) 103M (H/t) (B) 104M (H/t) (C) 105M (H/t) (D) 102M (H/t)
Last Answer : Answer: Option C
Description : Choose the correct relationship (A) Specific gravity = gravity × density (B) Dynamic viscosity = kinematic viscosity × density (C) Gravity = specific gravity × density (D) Kinematic viscosity = dynamic viscosity × density
Last Answer : Answer: Option B
Description : Materials for rain proof coats and tents owe their water proof properties to (1) Surface tension (2) Viscosity (3) Specific gravity (4) Elasticity
Last Answer : Surface tension
Last Answer : In the upper part of the engine, you have to open the cap on the designated port of the head cover or tap cover and give the mobil.
Last Answer : The bearings may overheat and melt and the piston cylinder may become jammed or clogged.
Description : How much does Jiffy Lube charge for an oil change?
Last Answer : Although Jiffy Lube charges a variety of prices around the country, the average for an oil change there is $30-$40. However, they use coupons a great deal, so most people actually pay $25-$35 for their oil change from Jiffy Lube.
Description : Where can I buy lube oil for my car?
Last Answer : You can buy lube oil almost anywhere. Wal-Mart, Canadian Tire, Jiffy Lube, gas stations etc. You can probably also go to any dealership in your area, as they will know exactly what kind of oil your should be using and they would offer a variety.
Description : According to Coast Guard Regulation (46 CFR) for emergency power and lighting systems, which of the listed items is the only permissible starting aid for the emergency diesel generator engine? A. Ether B. Lube oil heater C. Jacket water heater D. Fuel oil heater
Description : The main purpose of an electric space heater installed in a large AC generator is to _____________. A. keep the lube oil warm for quick starting B. prevent moisture from condensing in the ... is shutdown C. prevent the windings from becoming brittle D. prevent acidic pitting of the slip rings
Last Answer : Answer: B
Description : On large generators, space heaters are used to ____________. A. keep the machine at ambient tmperature of the machinery space B. maintain rotor and stator winding temperatures above the dew point ... C. prevent condensation in the lube oil D. prevent electrolysis due to condensation in the bearings
Description : In the illustration, moving the engine room reference in the direction indicated will _________. SE-0002 A. cause a positive signal to be sent to the ahead function generator creating a more ... the ahead valve to open until the negative signal exceeds the low lube oil pressure override signal
Last Answer : Answer: A
Description : In the illustration, the function generators will accept only a signal of a given polarity, if negative is used for ahead and positive for astern, moving the bridge reference in the direction ... cause a speed change until the output voltage exceeds the value of the lube oil pressure override
Description : An open-circuit fault between the pressure switch and the 'annunciator module' shown in the illustration would cause the alarm circuit to react in the same manner as if ___________. EL-0094 A. 3.5 ... below switch setting C. 50 PSI were applied to the 'setpoint module' D. the pressure switch closed
Description : The main purpose of an electric space heater installed in a large AC generator is to _____________. A. prevent the windings from becoming brittle B. prevent moisture from condensing in the windings during ... C. prevent acidic pitting of the slip rings D. keep the lube oil warm for quick starting
Description : Which of the damages listed can occur to the components of a winch master control switch, if the cover gasket becomes deteriorated? A. Overheating of the winch motor. B. Contamination of lube oil. C. Sparking at the winch motor brushes. D. Rapid corrosion of switch components.
Last Answer : Answer: D