Description : Classify lubricating oil using viscosity (SAE) and load severity (API) rating.
Last Answer : 1.On the basis of Viscosity : i. Lubricating Oils Classify in terms of Viscosity at -18 0C or in cold climates. a) SAE 5W b) SAE 10W c) SAE 20 W ii. Lubricating Oils Classify ... sum oxidation stability & anti- scuff c. protection d. SC, SD & SE: Meets automotive manufactures specifications.
Description : What sae standards must be referred to on label of approved hfc-134a refrigerant recycling machines?
Last Answer : SAE J2210 or SAE J2788
Description : Which are the reference fuels for knock rating of S.I. engines ?
Last Answer : n-heptane and ISO-octane.
Description : Manufacturers are required to put star rating labels as per the... a. ISO c. The standards and labeling program b. ASME d. RBI
Last Answer : The standards and labeling program
Description : What is SAE 0W-20 and what does 0W-20 mean?
Last Answer : What is the answer ?
Description : Enlist various ISO and SAE grades of hydraulic oils
Last Answer : The ISO and SAE grades are based on the main property of kinematic viscosity, it ranges from 32 centistrokes to 220 centistrokes. Higher the number of the grade more the kinematic viscosity of the oil. The letter W indicates that the oil is suitable in cold conditions also.
Description : The capacity of a battery is expressed in terms of A. Current rating B. Voltage rating C. Ampere hour rating D. None of the above
Last Answer : C. Ampere hour rating
Description : The rating of transformer may be expressed in ____________. (A) kVAR (B) kW (C) kVA (D) Horse power
Last Answer : The rating of transformer may be expressed in kVA .
Description : The rating of fuse wire is always expressed in (a) volts (b) amperes (c) ampere-volt (d) ampere-hours
Last Answer : The rating of fuse wire is always expressed in Amperes
Last Answer : The fuse rating is expressed in terms of current.
Description : BEE star rating is solely based on appliance's power .................. A) Consumption. C) Delivery. B) Recovery. D) Rejection.
Last Answer : Consumption.
Description : What is the full form of 'RAC' ? -How To ?
Last Answer : The full form of 'RAC' is Reservation Against Cancellation
Description : RAC stands for A. Reservation Against Cancellation B. Reservation Against Collection C. Reservation against cancel D. None of These
Last Answer : A [Reservation Against Cancellation]
Description : How many alert logs exist in a RAC environment?
Last Answer : One for each instance.
Description : Which command will we use to manage (stop, start…) RAC services in command-line mode?
Last Answer : srvctl
Description : What is the difference between normal views and RAC views?
Last Answer : RAC views has the prefix ‘G’. For example, GV$SESSION instead of V$SESSION
Description : What RAC component is used for communication between instances?
Last Answer : Private Interconnect.
Description : What was RAC previous name before it was called RAC?
Last Answer : OPS: Oracle Parallel Server
Description : Can you have many database versions in the same RAC?
Last Answer : Yes, but Clusterware version must be greater than the greater database version.
Description : Name two specific RAC background processes
Last Answer : RAC processes are: LMON, LMDx, LMSn, LKCx and DIAG.
Description : What is the minimum number of instances you need to have in order to create a RAC?
Last Answer : 1. You can create a RAC with just one server.
Description : What command would you use to check the availability of the RAC system?
Last Answer : crs_stat -t -v (-t -v are optional)
Description : What is the recommended method to make backups of a RAC environment?
Last Answer : RMAN to make backups of the database, dd to backup your voting disk and hard copies of the OCR file.
Description : . A permanent DRDO exhibition known as Darpan is established at (a) VRDE (b) INMAS (c) DRDE (d) RAC
Last Answer : (d) RAC
Description : Sea horse belong to
Last Answer : Sea horse belong to A. Mammals B. Amphibian C. Aves D. Pisces
Description : What horse power is required to isothermally compress 800 ft^3 of Air per minute from 14.7 psia to 120 psia? A. 28 hp B.108 hp C.256 hp D.13900 hp Formula: W= p1V1 ln (p1/p2) Power = dW / dt
Last Answer : 108 hp
Description : Why thermal efficiency of I.C. engines is more than that of gas turbine plant ?
Last Answer : In I.C. engine maximum temperature attained is higher than in gas turbine.
Description : Why iso-octane is chosen as reference fuel for S.I. engines and allotted 100 value for its octane number ?
Last Answer : Iso-octane permits highest compression without causing knocking.
Last Answer : Iso-octane permits highest compression without causing knocking
Description : In some engines glycerine is used in place of water for cooling of engine. Why ?
Last Answer : Glycerine has boiling point of 90°C which increases its heat carrying capacity. Thus weight of coolant gets reduced and smaller radiator can be used.
Description : Why efficiency of gas turbines is lower compared to I.C. engines ?
Last Answer : In gas turbines, 70% of the output of gas turbine is consumed by compressor. I.C. engines have much lower auxiliary consumption. Further combustion temperature of I.C. engines is much higher compared to gas turbine.
Description : Production of tractors, motor, engines and process equipment is domain of organised a) Unorganised sector b) rOrganised sector c) Both of the above d) None of above
Last Answer : Organised sector
Description : The production of irrigation pumps and diesel engines started during……. a)1950s b)1930s c)1940s d)2000s
Last Answer : 1930S
Description : Which of the following engines was introduced by a German engineer, Nickolas Otto? a. Gasoline engine b. Diesel engine c. Gas turbine d. Thermal engine
Last Answer : Gasoline engine
Description : Which of the following engines is the most efficient? a. Isobaric expansion b. Adiabatic compression c. Adiabatic expansion d. Isothermal expansion
Last Answer : Isobaric expansion
Description : Which of the following engines is the most efficient? a. Gas turbine b. Diesel engine c. Carnot engine d. Gasoline engine
Last Answer : Carnot engine
Description : Which of the following best describes both Stirling and Ericson engines? a. Internal combustion engine b. External combustion engine c. Diesel cycle d. Rankine cycle
Last Answer : External combustion engine
Description : Gasoline and Diesel Engines are best described by the _________. a. Otto Cycle b. Burnign Cycle c. Shikki Cycle d. Shapa R’ Elli Cycle
Last Answer : Otto Cycle
Description : What states that thermal efficiencies of all reversible heat engines operating between the same two reservoirs are the same and that no heat engine is more efficient than a reversible one operating between the ... A. Ericson principle B. Carnot principle C. Otto principle D. Stirling principle
Last Answer : Carnot principle
Description : The compression ratio for Diesel engines is A. 3 to 6 B. 5 to 8 C. 15 to 20 D. 20 to 30
Last Answer : Answer: C
Description : Which is the incorrect statement about Carnot cycle? A. It is used as the alternate standard of comparison of all heat engines. B. All the heat engines are based on Carnot cycle. C. It provides concept of maximising work output between the two temperature limits. D. all of the above
Last Answer : Answer: B
Description : The compression ratio for petrol engines is A.3 to 6 B.5 to 8 C.15 to 20 D.20 to 30
Description : Zeroth law of thermodynamics (a) deals with conversion of mass and energy (b) deals with reversibility and irreversibility of process (c) states that if two systems are both in equilibrium with a ... in thermal equilibrium with each other (d) deals with heat engines (e) does not exist.
Last Answer : Answer : c
Description : The prime importance of these is to educate and inform consumers about how energy efficient each product is ? a) Efficiency chart c) Both a & b b) Star Rating d) None of the above
Last Answer : Star Rating
Description : According to star rating ,the 5 star gives minimum ERR.... ix. 4.20 C) 3.90 x. 4.70 D) 4.50
Last Answer : 4.50
Description : Minimum EER of 5-star rating is a. 3.50 c) 3.99 b. 4.00 d) 4.50
Description : Energy Efficiency rating in BTU/hr/W is equal to a) 4.413 W/W b) 2.413 W/W c) 3.413 W/W
Last Answer : 3.413w/w
Description : A 5 star AC in the previous year may become a _____ AC the next year after revision of rating takes place. a) 5 star c) 3 star b) 7 star d) 10 star
Last Answer : 3 star
Description : Choose the correct star rating for BEE Star rating label limit a. 1< to 5 c. 1 to 5b. b. 1 to 5> d. None of the above
Last Answer : 1 to 5
Description : Choose the correct statement about BEE Star rating label a. Higher the number of stars, greater will be the efficiency b. Lesser the number of stars, greater will be the efficiency c. Higher the number of stars, lesser will be the efficiency d. None of the above
Last Answer : Higher the number of stars, greater will be the efficiency